Cisco IE 3000 Switch Software Configuration GuideCisco IOS Release 12.2(50)SE March 2009

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Text Part Number: OL-13018-03

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Cisco IE 3000 Switch Software Configuration Guide Copyright 2008-2009 Cisco Systems, Inc. All rights reserved.

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C O N T E N T S

Preface xxxi

Audience xxxi

Purpose xxxi

Conventions xxxi

Related Publications xxxii

Obtaining Documentation, Obtaining Support, and Security Guidelines xxxiii

C H A P T E R 1 Overview 1-1

Features 1-1Ease-of-Deployment and Ease-of-Use Features 1-2Performance Features 1-3Management Options 1-4Manageability Features 1-5Availability and Redundancy Features 1-6VLAN Features 1-7Security Features 1-8QoS and CoS Features 1-9Monitoring Features 1-10

Default Settings After Initial Switch Configuration 1-11

Network Configuration Examples 1-13Design Concepts for Using the Switch 1-13Ethernet-to-the-Factory Architecture 1-14

Enterprise Zone 1-15Demilitarized Zone 1-15Manufacturing Zone 1-15Topology Options 1-17

Where to Go Next 1-20

C H A P T E R 2 Using the Command-Line Interface 2-1

Understanding Command Modes 2-1

Understanding the Help System 2-3

Understanding Abbreviated Commands 2-4

Understanding no and default Forms of Commands 2-4

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Understanding CLI Error Messages 2-5

Using Configuration Logging 2-5

Using Command History 2-6Changing the Command History Buffer Size 2-6Recalling Commands 2-6Disabling the Command History Feature 2-7

Using Editing Features 2-7Enabling and Disabling Editing Features 2-7Editing Commands through Keystrokes 2-7Editing Command Lines that Wrap 2-9

Searching and Filtering Output of show and more Commands 2-10

Accessing the CLI 2-10Accessing the CLI through a Console Connection or through Telnet 2-10

C H A P T E R 3 Configuring Cisco IE 3000 Switch Alarms 3-1

Understanding IE 3000 Switch Alarms 3-1Global Status Monitoring Alarms 3-2FCS Error Hysteresis Threshold 3-2Port Status Monitoring Alarms 3-2Triggering Alarm Options 3-3

Configuring IE 3000 Switch Alarms 3-4Default IE 3000 Switch Alarm Configuration 3-4Configuring the Power Supply Alarm 3-5

Setting the Power Mode 3-5Setting the Power Supply Alarm Options 3-5

Configuring the Switch Temperature Alarms 3-6Setting the Primary Temperature Threshold for the Switch 3-6Setting a Secondary Temperature Threshold for the Switch 3-7Associating the Temperature Alarms to a Relay 3-7

Configuring the FCS Bit Error Rate Alarm 3-8Setting the FCS Error Threshold 3-8Setting the FCS Error Hysteresis Threshold 3-9

Configuring Alarm Profiles 3-9Creating or Modifying an Alarm Profile 3-10Attaching an Alarm Profile to a Specific Port 3-11

Enabling SNMP Traps 3-11

Displaying IE 3000 Switch Alarms Status 3-12

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C H A P T E R 4 Assigning the Switch IP Address and Default Gateway 4-1

Understanding the Boot Process 4-1

Assigning Switch Information 4-2Default Switch Information 4-3Understanding DHCP-Based Autoconfiguration 4-3

DHCP Client Request Process 4-4Understanding DHCP-based Autoconfiguration and Image Update 4-5

DHCP Autoconfiguration 4-5DHCP Auto-Image Update 4-5Limitations and Restrictions 4-5

Configuring DHCP-Based Autoconfiguration 4-6DHCP Server Configuration Guidelines 4-6Configuring the TFTP Server 4-7Configuring the DNS 4-7Configuring the Relay Device 4-8Obtaining Configuration Files 4-8Example Configuration 4-9

Configuring the DHCP Auto Configuration and Image Update Features 4-11Configuring DHCP Autoconfiguration (Only Configuration File) 4-11Configuring DHCP Auto-Image Update (Configuration File and Image) 4-12Configuring the Client 4-13

Manually Assigning IP Information 4-14

Checking and Saving the Running Configuration 4-14

Modifying the Startup Configuration 4-15Default Boot Configuration 4-16Automatically Downloading a Configuration File 4-16Specifying the Filename to Read and Write the System Configuration 4-16Booting Manually 4-17Booting a Specific Software Image 4-18Controlling Environment Variables 4-18

Scheduling a Reload of the Software Image 4-20Configuring a Scheduled Reload 4-20Displaying Scheduled Reload Information 4-21

C H A P T E R 5 Configuring Cisco EnergyWise 5-1

Managing Single Entities 5-1EnergyWise Entity 5-1EnergyWise Domain 5-2EnergyWise Network 5-2

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Single PoE Switch Scenario 5-3EnergyWise Power Level 5-4EnergyWise Importance 5-5EnergyWise Names, Roles, and Keywords 5-5Configuration Guidelines 5-5PoE and EnergyWise Interactions 5-5Manually Managing Power 5-6

Powering the Entity 5-6Configuring Entity Attributes 5-7Powering the PoE Port 5-8Configuring PoE-Port Attributes 5-8

Automatically Managing Power (Recurrence) 5-9Examples 5-11

Setting Up the Domain 5-11Manually Managing Power 5-12Automatically Managing Power 5-12

Managing Multiple Entities 5-12Multiple PoE Switch Scenario 5-13EnergyWise Query 5-13Using Queries to Manage Power in the Domain 5-14Examples 5-15

Querying with the Name Attribute 5-15Querying with Keywords 5-16Querying to Set Power Levels 5-16

Troubleshooting EnergyWise 5-16Using CLI Commands 5-17Verifying the Power Usage 5-17

Additional Information 5-18Managing Power in a LAN 5-18Managing Power with IP Routing 5-18

C H A P T E R 6 Configuring Cisco IOS Configuration Engine 6-1

Understanding Cisco Configuration Engine Software 6-1Configuration Service 6-2Event Service 6-3

NameSpace Mapper 6-3What You Should Know About the CNS IDs and Device Hostnames 6-3

ConfigID 6-3DeviceID 6-4

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Hostname and DeviceID 6-4Using Hostname, DeviceID, and ConfigID 6-4

Understanding Cisco IOS Agents 6-5Initial Configuration 6-5Incremental (Partial) Configuration 6-6Synchronized Configuration 6-6

Configuring Cisco IOS Agents 6-6Enabling Automated CNS Configuration 6-6Enabling the CNS Event Agent 6-7Enabling the Cisco IOS CNS Agent 6-9

Enabling an Initial Configuration 6-9Enabling a Partial Configuration 6-13

Displaying CNS Configuration 6-14

C H A P T E R 7 Clustering Switches 7-1

Understanding Switch Clusters 7-1Cluster Command Switch Characteristics 7-3Standby Cluster Command Switch Characteristics 7-3Candidate Switch and Cluster Member Switch Characteristics 7-3

Planning a Switch Cluster 7-4Automatic Discovery of Cluster Candidates and Members 7-4

Discovery Through CDP Hops 7-5Discovery Through Non-CDP-Capable and Noncluster-Capable Devices 7-6Discovery Through Different VLANs 7-6Discovery Through Different Management VLANs 7-7Discovery of Newly Installed Switches 7-8

HSRP and Standby Cluster Command Switches 7-9Virtual IP Addresses 7-10Other Considerations for Cluster Standby Groups 7-10Automatic Recovery of Cluster Configuration 7-11

IP Addresses 7-12Hostnames 7-12Passwords 7-12SNMP Community Strings 7-13TACACS+ and RADIUS 7-13LRE Profiles 7-13

Using the CLI to Manage Switch Clusters 7-14Catalyst 1900 and Catalyst 2820 CLI Considerations 7-14

Using SNMP to Manage Switch Clusters 7-14

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C H A P T E R 8 Administering the Switch 8-1

Managing the System Time and Date 8-1Understanding the System Clock 8-1Understanding Network Time Protocol 8-2Configuring NTP 8-3

Default NTP Configuration 8-4Configuring NTP Authentication 8-4Configuring NTP Associations 8-5Configuring NTP Broadcast Service 8-6Configuring NTP Access Restrictions 8-8Configuring the Source IP Address for NTP Packets 8-10Displaying the NTP Configuration 8-11

Configuring Time and Date Manually 8-11Setting the System Clock 8-11Displaying the Time and Date Configuration 8-12Configuring the Time Zone 8-12Configuring Summer Time (Daylight Saving Time) 8-13

Configuring a System Name and Prompt 8-14Default System Name and Prompt Configuration 8-15Configuring a System Name 8-15Understanding DNS 8-15

Default DNS Configuration 8-16Setting Up DNS 8-16Displaying the DNS Configuration 8-17

Creating a Banner 8-17Default Banner Configuration 8-17Configuring a Message-of-the-Day Login Banner 8-18Configuring a Login Banner 8-18

Managing the MAC Address Table 8-19Building the Address Table 8-20MAC Addresses and VLANs 8-20Default MAC Address Table Configuration 8-20Changing the Address Aging Time 8-21Removing Dynamic Address Entries 8-21Configuring MAC Address Notification Traps 8-21Adding and Removing Static Address Entries 8-23Configuring Unicast MAC Address Filtering 8-24Disabling MAC Address Learning on a VLAN 8-25Displaying Address Table Entries 8-27

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Managing the ARP Table 8-27

C H A P T E R 9 Configuring PTP 9-1

Understanding PTP 9-1

Configuring PTP 9-1Default Configuration 9-2Setting Up PTP 9-3

Displaying the PTP Configuration 9-4

C H A P T E R 10 Configuring SDM Templates 10-1

Understanding the SDM Templates 10-1

Configuring the Switch SDM Template 10-2Default SDM Template 10-2SDM Template Configuration Guidelines 10-2Setting the SDM Template 10-3

.Displaying the SDM Templates 10-3

C H A P T E R 11 Configuring Switch-Based Authentication 11-1

Preventing Unauthorized Access to Your Switch 11-1

Protecting Access to Privileged EXEC Commands 11-2Default Password and Privilege Level Configuration 11-2Setting or Changing a Static Enable Password 11-3Protecting Enable and Enable Secret Passwords with Encryption 11-3Disabling Password Recovery 11-5Setting a Telnet Password for a Terminal Line 11-6Configuring Username and Password Pairs 11-6Configuring Multiple Privilege Levels 11-7

Setting the Privilege Level for a Command 11-8Changing the Default Privilege Level for Lines 11-9Logging into and Exiting a Privilege Level 11-9

Controlling Switch Access with TACACS+ 11-10Understanding TACACS+ 11-10TACACS+ Operation 11-12Configuring TACACS+ 11-12

Default TACACS+ Configuration 11-13Identifying the TACACS+ Server Host and Setting the Authentication Key 11-13Configuring TACACS+ Login Authentication 11-14Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 11-16

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Starting TACACS+ Accounting 11-17Displaying the TACACS+ Configuration 11-17

Controlling Switch Access with RADIUS 11-17Understanding RADIUS 11-18RADIUS Operation 11-19Configuring RADIUS 11-19

Default RADIUS Configuration 11-20Identifying the RADIUS Server Host 11-20Configuring RADIUS Login Authentication 11-23Defining AAA Server Groups 11-25Configuring RADIUS Authorization for User Privileged Access and Network Services 11-27Starting RADIUS Accounting 11-28Configuring Settings for All RADIUS Servers 11-29Configuring the Switch to Use Vendor-Specific RADIUS Attributes 11-29Configuring the Switch for Vendor-Proprietary RADIUS Server Communication 11-31Configuring RADIUS Server Load Balancing 11-31

Displaying the RADIUS Configuration 11-32

Configuring the Switch for Local Authentication and Authorization 11-32

Configuring the Switch for Secure Shell 11-33Understanding SSH 11-33

SSH Servers, Integrated Clients, and Supported Versions 11-33Limitations 11-34

Configuring SSH 11-34Configuration Guidelines 11-34Setting Up the Switch to Run SSH 11-35Configuring the SSH Server 11-36

Displaying the SSH Configuration and Status 11-37

Configuring the Switch for Secure Socket Layer HTTP 11-37Understanding Secure HTTP Servers and Clients 11-37

Certificate Authority Trustpoints 11-38CipherSuites 11-39

Configuring Secure HTTP Servers and Clients 11-40Default SSL Configuration 11-40SSL Configuration Guidelines 11-40Configuring a CA Trustpoint 11-40Configuring the Secure HTTP Server 11-41Configuring the Secure HTTP Client 11-43

Displaying Secure HTTP Server and Client Status 11-43

Configuring the Switch for Secure Copy Protocol 11-44

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Information About Secure Copy 11-44

C H A P T E R 12 Configuring IEEE 802.1x Port-Based Authentication 12-1

Understanding IEEE 802.1x Port-Based Authentication 12-1Device Roles 12-2Authentication Process 12-3Authentication Initiation and Message Exchange 12-5Authentication Manager 12-7

Port-Based Authentication Methods 12-7Per-User ACLs and Filter-Ids 12-8Authentication Manager CLI Commands 12-8

Ports in Authorized and Unauthorized States 12-9802.1x Host Mode 12-10Multidomain Authentication 12-11802.1x Multiple Authentication Mode 12-12802.1x Accounting 12-12802.1x Accounting Attribute-Value Pairs 12-13802.1x Readiness Check 12-14802.1x Authentication with VLAN Assignment 12-14802.1x Authentication with Downloadable ACLs and Redirect URLs 12-15

Cisco Secure ACS and Attribute-Value Pairs for the Redirect URL 12-16Cisco Secure ACS and Attribute-Value Pairs for Downloadable ACLs 12-16

802.1x Authentication with Guest VLAN 12-17802.1x Authentication with Restricted VLAN 12-18802.1x Authentication with Inaccessible Authentication Bypass 12-19802.1x Authentication with Voice VLAN Ports 12-20802.1x Authentication with Port Security 12-20802.1x Authentication with Wake-on-LAN 12-21802.1x Authentication with MAC Authentication Bypass 12-22Network Admission Control Layer 2 802.1x Validation 12-23Flexible Authentication Ordering 12-23Open1x Authentication 12-24802.1x Switch Supplicant with Network Edge Access Topology (NEAT) 12-24Web Authentication 12-25

Web Authentication with Automatic MAC Check 12-26Using IEEE 802.1x Authentication with ACLs and the RADIUS Filter-Id Attribute 12-26

Configuring 802.1x Authentication 12-26Default 802.1x Authentication Configuration 12-27802.1x Authentication Configuration Guidelines 12-28

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802.1x Authentication 12-29VLAN Assignment, Guest VLAN, Restricted VLAN, and Inaccessible Authentication Bypass 12-29MAC Authentication Bypass 12-30Maximum Number of Allowed Devices Per Port 12-30

Configuring 802.1x Readiness Check 12-31Configuring 802.1x Violation Modes 12-32Configuring 802.1x Authentication 12-32Configuring the Switch-to-RADIUS-Server Communication 12-34Configuring the Host Mode 12-35Configuring Periodic Re-Authentication 12-37Manually Re-Authenticating a Client Connected to a Port 12-38Changing the Quiet Period 12-38Changing the Switch-to-Client Retransmission Time 12-39Setting the Switch-to-Client Frame-Retransmission Number 12-39Setting the Re-Authentication Number 12-40Configuring 802.1x Accounting 12-41Configuring a Guest VLAN 12-42Configuring a Restricted VLAN 12-43Configuring the Inaccessible Authentication Bypass Feature 12-45Configuring 802.1x Authentication with WoL 12-47Configuring MAC Authentication Bypass 12-48Configuring NAC Layer 2 802.1x Validation 12-49Configuring 802.1x Switch Supplicant with NEAT 12-50Configuring 802.1x Authentication with Downloadable ACLs and Redirect URLs 12-52

Configuring Downloadable ACLs 12-52Configuring a Downloadable Policy 12-53

Configuring Flexible Authentication Ordering 12-54Configuring Open1x 12-55Configuring Web Authentication 12-55Disabling 802.1x Authentication on the Port 12-58Resetting the 802.1x Authentication Configuration to the Default Values 12-59

Displaying 802.1x Statistics and Status 12-59

C H A P T E R 13 Configuring Interface Characteristics 13-1

Understanding Interface Types 13-1Port-Based VLANs 13-2Switch Ports 13-2

Access Ports 13-2Trunk Ports 13-3

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EtherChannel Port Groups 13-3Dual-Purpose Uplink Ports 13-4Connecting Interfaces 13-4

Using Interface Configuration Mode 13-4Procedures for Configuring Interfaces 13-6Configuring a Range of Interfaces 13-6Configuring and Using Interface Range Macros 13-8

Configuring Ethernet Interfaces 13-10Default Ethernet Interface Configuration 13-10Setting the Type of a Dual-Purpose Uplink Port 13-11Configuring Interface Speed and Duplex Mode 13-13

Speed and Duplex Configuration Guidelines 13-13Setting the Interface Speed and Duplex Parameters 13-14

Configuring IEEE 802.3x Flow Control 13-15Configuring Auto-MDIX on an Interface 13-16Adding a Description for an Interface 13-17

Configuring the System MTU 13-17

Monitoring and Maintaining the Interfaces 13-18Monitoring Interface Status 13-19Clearing and Resetting Interfaces and Counters 13-19Shutting Down and Restarting the Interface 13-20

C H A P T E R 14 Configuring Smartports Macros 14-1

Understanding Smartports Macros 14-1

Configuring Smartports Macros 14-1Default Smartports Configuration 14-1Smartports Configuration Guidelines 14-2Applying Smartports Macros 14-3

Displaying Smartports Macros 14-5

C H A P T E R 15 Configuring VLANs 15-1

Understanding VLANs 15-1Supported VLANs 15-2VLAN Port Membership Modes 15-3

Configuring Normal-Range VLANs 15-4Token Ring VLANs 15-5Normal-Range VLAN Configuration Guidelines 15-5VLAN Configuration Mode Options 15-6

VLAN Configuration in config-vlan Mode 15-6

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VLAN Configuration in VLAN Database Configuration Mode 15-6Saving VLAN Configuration 15-6Default Ethernet VLAN Configuration 15-7Creating or Modifying an Ethernet VLAN 15-8Deleting a VLAN 15-9Assigning Static-Access Ports to a VLAN 15-10

Configuring Extended-Range VLANs 15-11Default VLAN Configuration 15-11Extended-Range VLAN Configuration Guidelines 15-12Creating an Extended-Range VLAN 15-12

Displaying VLANs 15-13

Configuring VLAN Trunks 15-14Trunking Overview 15-14

IEEE 802.1Q Configuration Considerations 15-15Default Layer 2 Ethernet Interface VLAN Configuration 15-16Configuring an Ethernet Interface as a Trunk Port 15-16

Interaction with Other Features 15-16Configuring a Trunk Port 15-17Defining the Allowed VLANs on a Trunk 15-18Changing the Pruning-Eligible List 15-19Configuring the Native VLAN for Untagged Traffic 15-19

Configuring Trunk Ports for Load Sharing 15-20Load Sharing Using STP Port Priorities 15-20Load Sharing Using STP Path Cost 15-22

Configuring VMPS 15-23Understanding VMPS 15-24

Dynamic-Access Port VLAN Membership 15-24Default VMPS Client Configuration 15-25VMPS Configuration Guidelines 15-25Configuring the VMPS Client 15-25

Entering the IP Address of the VMPS 15-26Configuring Dynamic-Access Ports on VMPS Clients 15-26Reconfirming VLAN Memberships 15-27Changing the Reconfirmation Interval 15-27Changing the Retry Count 15-28

Monitoring the VMPS 15-28Troubleshooting Dynamic-Access Port VLAN Membership 15-29VMPS Configuration Example 15-29

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C H A P T E R 16 Configuring VTP 16-1

Understanding VTP 16-1The VTP Domain 16-2VTP Modes 16-3VTP Advertisements 16-3VTP Version 2 16-4VTP Pruning 16-4

Configuring VTP 16-6Default VTP Configuration 16-6VTP Configuration Options 16-6

VTP Configuration in Global Configuration Mode 16-7VTP Configuration in VLAN Database Configuration Mode 16-7

VTP Configuration Guidelines 16-7Domain Names 16-7Passwords 16-8VTP Version 16-8Configuration Requirements 16-8

Configuring a VTP Server 16-9Configuring a VTP Client 16-11Disabling VTP (VTP Transparent Mode) 16-12Enabling VTP Version 2 16-13Enabling VTP Pruning 16-14Adding a VTP Client Switch to a VTP Domain 16-14

Monitoring VTP 16-16

C H A P T E R 17 Configuring Voice VLAN 17-1

Understanding Voice VLAN 17-1Cisco IP Phone Voice Traffic 17-2Cisco IP Phone Data Traffic 17-2

Configuring Voice VLAN 17-3Default Voice VLAN Configuration 17-3Voice VLAN Configuration Guidelines 17-3Configuring a Port Connected to a Cisco 7960 IP Phone 17-4

Configuring Cisco IP Phone Voice Traffic 17-4Configuring the Priority of Incoming Data Frames 17-6

Displaying Voice VLAN 17-6

C H A P T E R 18 Configuring STP 18-1

Understanding Spanning-Tree Features 18-1

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STP Overview 18-2Spanning-Tree Topology and BPDUs 18-3Bridge ID, Switch Priority, and Extended System ID 18-4Spanning-Tree Interface States 18-4

Blocking State 18-5Listening State 18-6Learning State 18-6Forwarding State 18-6Disabled State 18-7

How a Switch or Port Becomes the Root Switch or Root Port 18-7Spanning Tree and Redundant Connectivity 18-8Spanning-Tree Address Management 18-8Accelerated Aging to Retain Connectivity 18-8Spanning-Tree Modes and Protocols 18-9Supported Spanning-Tree Instances 18-9Spanning-Tree Interoperability and Backward Compatibility 18-10STP and IEEE 802.1Q Trunks 18-10

Configuring Spanning-Tree Features 18-11Default Spanning-Tree Configuration 18-11Spanning-Tree Configuration Guidelines 18-12Changing the Spanning-Tree Mode. 18-13Disabling Spanning Tree 18-14Configuring the Root Switch 18-14Configuring a Secondary Root Switch 18-16Configuring Port Priority 18-16Configuring Path Cost 18-18Configuring the Switch Priority of a VLAN 18-19Configuring Spanning-Tree Timers 18-20

Configuring the Hello Time 18-20Configuring the Forwarding-Delay Time for a VLAN 18-21Configuring the Maximum-Aging Time for a VLAN 18-21Configuring the Transmit Hold-Count 18-22

Displaying the Spanning-Tree Status 18-22

C H A P T E R 19 Configuring MSTP 19-1

Understanding MSTP 19-2Multiple Spanning-Tree Regions 19-2IST, CIST, and CST 19-2

Operations Within an MST Region 19-3

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Operations Between MST Regions 19-3IEEE 802.1s Terminology 19-5

Hop Count 19-5Boundary Ports 19-6IEEE 802.1s Implementation 19-6

Port Role Naming Change 19-6Interoperation Between Legacy and Standard Switches 19-7Detecting Unidirectional Link Failure 19-7

Interoperability with IEEE 802.1D STP 19-8

Understanding RSTP 19-8Port Roles and the Active Topology 19-9Rapid Convergence 19-9Synchronization of Port Roles 19-11Bridge Protocol Data Unit Format and Processing 19-12

Processing Superior BPDU Information 19-12Processing Inferior BPDU Information 19-13

Topology Changes 19-13

Configuring MSTP Features 19-13Default MSTP Configuration 19-14MSTP Configuration Guidelines 19-14Specifying the MST Region Configuration and Enabling MSTP 19-15Configuring the Root Switch 19-17Configuring a Secondary Root Switch 19-18Configuring Port Priority 19-19Configuring Path Cost 19-20Configuring the Switch Priority 19-21Configuring the Hello Time 19-22Configuring the Forwarding-Delay Time 19-23Configuring the Maximum-Aging Time 19-23Configuring the Maximum-Hop Count 19-24Specifying the Link Type to Ensure Rapid Transitions 19-24Designating the Neighbor Type 19-25Restarting the Protocol Migration Process 19-25

Displaying the MST Configuration and Status 19-26

C H A P T E R 20 Configuring Optional Spanning-Tree Features 20-1

Understanding Optional Spanning-Tree Features 20-1Understanding Port Fast 20-2Understanding BPDU Guard 20-2Understanding BPDU Filtering 20-3

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Understanding UplinkFast 20-3Understanding BackboneFast 20-5Understanding EtherChannel Guard 20-7Understanding Root Guard 20-8Understanding Loop Guard 20-9

Configuring Optional Spanning-Tree Features 20-9Default Optional Spanning-Tree Configuration 20-9Optional Spanning-Tree Configuration Guidelines 20-10Enabling Port Fast 20-10Enabling BPDU Guard 20-11Enabling BPDU Filtering 20-12Enabling UplinkFast for Use with Redundant Links 20-13Enabling BackboneFast 20-13Enabling EtherChannel Guard 20-14Enabling Root Guard 20-15Enabling Loop Guard 20-15

Displaying the Spanning-Tree Status 20-16

C H A P T E R 21 Configuring Resilient Ethernet Protocol 21-1

Understanding REP 21-1Link Integrity 21-3Fast Convergence 21-4VLAN Load Balancing 21-4Spanning Tree Interaction 21-6REP Ports 21-6

Configuring REP 21-6Default REP Configuration 21-7REP Configuration Guidelines 21-7Configuring the REP Administrative VLAN 21-8Configuring REP Interfaces 21-9Setting Manual Preemption for VLAN Load Balancing 21-12Configuring SNMP Traps for REP 21-13

Monitoring REP 21-13

C H A P T E R 22 Configuring Flex Links and the MAC Address-Table Move Update Feature 22-1

Understanding Flex Links and the MAC Address-Table Move Update 22-1Flex Links 22-1VLAN Flex Link Load Balancing and Support 22-2Flex Link Multicast Fast Convergence 22-3

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Learning the Other Flex Link Port as the mrouter Port 22-3Generating IGMP Reports 22-3Leaking IGMP Reports 22-4Configuration Examples 22-4

MAC Address-Table Move Update 22-6

Configuring Flex Links and the MAC Address-Table Move Update 22-7Default Configuration 22-8Configuration Guidelines 22-8Configuring Flex Links 22-9Configuring VLAN Load Balancing on Flex Links 22-11Configuring the MAC Address-Table Move Update Feature 22-12

Monitoring Flex Links and the MAC Address-Table Move Update 22-14

C H A P T E R 23 Configuring DHCP Features and IP Source Guard 23-1

Understanding DHCP Snooping 23-1DHCP Server 23-2DHCP Relay Agent 23-2DHCP Snooping 23-2Option-82 Data Insertion 23-3DHCP Snooping Binding Database 23-5

Configuring DHCP Snooping 23-6Default DHCP Snooping Configuration 23-6DHCP Snooping Configuration Guidelines 23-7Configuring the DHCP Relay Agent 23-8Enabling DHCP Snooping and Option 82 23-9Enabling the Cisco IOS DHCP Server Database 23-10Enabling the DHCP Snooping Binding Database Agent 23-11

Displaying DHCP Snooping Information 23-12

Understanding IP Source Guard 23-12Source IP Address Filtering 23-13Source IP and MAC Address Filtering 23-13

Configuring IP Source Guard 23-13Default IP Source Guard Configuration 23-13IP Source Guard Configuration Guidelines 23-13Enabling IP Source Guard 23-14

Displaying IP Source Guard Information 23-15

Understanding DHCP Server Port-Based Address Allocation 23-15

Configuring DHCP Server Port-Based Address Allocation 23-16

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Default Port-Based Address Allocation Configuration 23-16Port-Based Address Allocation Configuration Guidelines 23-16Enabling DHCP Server Port-Based Address Allocation 23-17

Displaying DHCP Server Port-Based Address Allocation 23-19

C H A P T E R 24 Configuring Dynamic ARP Inspection 24-1

Understanding Dynamic ARP Inspection 24-1Interface Trust States and Network Security 24-3Rate Limiting of ARP Packets 24-4Relative Priority of ARP ACLs and DHCP Snooping Entries 24-4Logging of Dropped Packets 24-4

Configuring Dynamic ARP Inspection 24-5Default Dynamic ARP Inspection Configuration 24-5Dynamic ARP Inspection Configuration Guidelines 24-6Configuring Dynamic ARP Inspection in DHCP Environments 24-7Configuring ARP ACLs for Non-DHCP Environments 24-8Limiting the Rate of Incoming ARP Packets 24-10Performing Validation Checks 24-12Configuring the Log Buffer 24-13

Displaying Dynamic ARP Inspection Information 24-14

C H A P T E R 25 Configuring IGMP Snooping and MVR 25-1

Understanding IGMP Snooping 25-1IGMP Versions 25-2Joining a Multicast Group 25-3Leaving a Multicast Group 25-5Immediate Leave 25-5IGMP Configurable-Leave Timer 25-5IGMP Report Suppression 25-6

Configuring IGMP Snooping 25-6Default IGMP Snooping Configuration 25-6Enabling or Disabling IGMP Snooping 25-7Setting the Snooping Method 25-8Configuring a Multicast Router Port 25-9Configuring a Host Statically to Join a Group 25-9Enabling IGMP Immediate Leave 25-10Configuring the IGMP Leave Timer 25-10Configuring TCN-Related Commands 25-11

Controlling the Multicast Flooding Time After a TCN Event 25-11

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Recovering from Flood Mode 25-12Disabling Multicast Flooding During a TCN Event 25-13

Configuring the IGMP Snooping Querier 25-13Disabling IGMP Report Suppression 25-15

Displaying IGMP Snooping Information 25-15

Understanding Multicast VLAN Registration 25-16Using MVR in a Multicast Television Application 25-17

Configuring MVR 25-19Default MVR Configuration 25-19MVR Configuration Guidelines and Limitations 25-19Configuring MVR Global Parameters 25-20Configuring MVR Interfaces 25-21

Displaying MVR Information 25-23

Configuring IGMP Filtering and Throttling 25-23Default IGMP Filtering and Throttling Configuration 25-24Configuring IGMP Profiles 25-24Applying IGMP Profiles 25-25Setting the Maximum Number of IGMP Groups 25-26Configuring the IGMP Throttling Action 25-27

Displaying IGMP Filtering and Throttling Configuration 25-28

C H A P T E R 26 Configuring Port-Based Traffic Control 26-1

Configuring Storm Control 26-1Understanding Storm Control 26-1Default Storm Control Configuration 26-3Configuring Storm Control and Threshold Levels 26-3Configuring Small-Frame Arrival Rate 26-5

Configuring Protected Ports 26-6Default Protected Port Configuration 26-6Protected Port Configuration Guidelines 26-7Configuring a Protected Port 26-7

Configuring Port Blocking 26-7Default Port Blocking Configuration 26-7Blocking Flooded Traffic on an Interface 26-8

Configuring Port Security 26-8Understanding Port Security 26-9

Secure MAC Addresses 26-9Security Violations 26-10

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Default Port Security Configuration 26-11Port Security Configuration Guidelines 26-11Enabling and Configuring Port Security 26-12Enabling and Configuring Port Security Aging 26-17

Displaying Port-Based Traffic Control Settings 26-19

C H A P T E R 27 Configuring LLDP, LLDP-MED, and Wired Location Service 27-1

Understanding LLDP, LLDP-MED, and Wired Location Service 27-1LLDP 27-1LLDP-MED 27-2Wired Location Service 27-3

Configuring LLDP, LLDP-MED, and Wired Location Service 27-4Default LLDP Configuration 27-4Configuration Guidelines 27-5Enabling LLDP 27-5Configuring LLDP Characteristics 27-5Configuring LLDP-MED TLVs 27-6Configuring Network-Policy TLV 27-7Configuring Location TLV and Wired Location Service 27-9

Monitoring and Maintaining LLDP, LLDP-MED, and Wired Location Service 27-10

C H A P T E R 28 Configuring CDP 28-1

Understanding CDP 28-1

Configuring CDP 28-2Default CDP Configuration 28-2Configuring the CDP Characteristics 28-2Disabling and Enabling CDP 28-3Disabling and Enabling CDP on an Interface 28-4

Monitoring and Maintaining CDP 28-5

C H A P T E R 29 Configuring UDLD 29-1

Understanding UDLD 29-1Modes of Operation 29-1Methods to Detect Unidirectional Links 29-2

Configuring UDLD 29-3Default UDLD Configuration 29-4Configuration Guidelines 29-4Enabling UDLD Globally 29-5

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Enabling UDLD on an Interface 29-5Resetting an Interface Disabled by UDLD 29-6

Displaying UDLD Status 29-6

C H A P T E R 30 Configuring SPAN and RSPAN 30-1

Understanding SPAN and RSPAN 30-1Local SPAN 30-2Remote SPAN 30-2SPAN and RSPAN Concepts and Terminology 30-3

SPAN Sessions 30-3Monitored Traffic 30-4Source Ports 30-5Source VLANs 30-6VLAN Filtering 30-6Destination Port 30-6RSPAN VLAN 30-7

SPAN and RSPAN Interaction with Other Features 30-8

Configuring SPAN and RSPAN 30-9Default SPAN and RSPAN Configuration 30-9Configuring Local SPAN 30-9

SPAN Configuration Guidelines 30-10Creating a Local SPAN Session 30-10Creating a Local SPAN Session and Configuring Incoming Traffic 30-13Specifying VLANs to Filter 30-15

Configuring RSPAN 30-16RSPAN Configuration Guidelines 30-16Configuring a VLAN as an RSPAN VLAN 30-17Creating an RSPAN Source Session 30-18Creating an RSPAN Destination Session 30-19Creating an RSPAN Destination Session and Configuring Incoming Traffic 30-20Specifying VLANs to Filter 30-22

Displaying SPAN and RSPAN Status 30-23

C H A P T E R 31 Configuring RMON 31-1

Understanding RMON 31-1

Configuring RMON 31-2Default RMON Configuration 31-3Configuring RMON Alarms and Events 31-3Collecting Group History Statistics on an Interface 31-5

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Collecting Group Ethernet Statistics on an Interface 31-5

Displaying RMON Status 31-6

C H A P T E R 32 Configuring System Message Logging 32-1

Understanding System Message Logging 32-1

Configuring System Message Logging 32-2System Log Message Format 32-2Default System Message Logging Configuration 32-3Disabling Message Logging 32-4Setting the Message Display Destination Device 32-5Synchronizing Log Messages 32-6Enabling and Disabling Time Stamps on Log Messages 32-7Enabling and Disabling Sequence Numbers in Log Messages 32-8Defining the Message Severity Level 32-8Limiting Syslog Messages Sent to the History Table and to SNMP 32-10Enabling the Configuration-Change Logger 32-10Configuring UNIX Syslog Servers 32-12

Logging Messages to a UNIX Syslog Daemon 32-12Configuring the UNIX System Logging Facility 32-12

Displaying the Logging Configuration 32-13

C H A P T E R 33 Configuring SNMP 33-1

Understanding SNMP 33-1SNMP Versions 33-2SNMP Manager Functions 33-3SNMP Agent Functions 33-3SNMP Community Strings 33-4Using SNMP to Access MIB Variables 33-4SNMP Notifications 33-5SNMP ifIndex MIB Object Values 33-5

Configuring SNMP 33-6Default SNMP Configuration 33-6SNMP Configuration Guidelines 33-6Disabling the SNMP Agent 33-7Configuring Community Strings 33-8Configuring SNMP Groups and Users 33-9Configuring SNMP Notifications 33-11Setting the CPU Threshold Notification Types and Values 33-15Setting the Agent Contact and Location Information 33-16

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Limiting TFTP Servers Used Through SNMP 33-16SNMP Examples 33-17

Displaying SNMP Status 33-18

C H A P T E R 34 Configuring Network Security with ACLs 34-1

Understanding ACLs 34-1Port ACLs 34-2Handling Fragmented and Unfragmented Traffic 34-3

Configuring IPv4 ACLs 34-4Creating Standard and Extended IPv4 ACLs 34-5

Access List Numbers 34-6Creating a Numbered Standard ACL 34-7Creating a Numbered Extended ACL 34-8Resequencing ACEs in an ACL 34-12Creating Named Standard and Extended ACLs 34-12Using Time Ranges with ACLs 34-14Including Comments in ACLs 34-15

Applying an IPv4 ACL to a Terminal Line 34-16Applying an IPv4 ACL to an Interface 34-16Hardware and Software Treatment of IP ACLs 34-17Troubleshooting ACLs 34-17IPv4 ACL Configuration Examples 34-18

Numbered ACLs 34-19Extended ACLs 34-19Named ACLs 34-19Time Range Applied to an IP ACL 34-20Commented IP ACL Entries 34-20

Creating Named MAC Extended ACLs 34-20Applying a MAC ACL to a Layer 2 Interface 34-22

Displaying IPv4 ACL Configuration 34-23

C H A P T E R 35 Configuring Cisco IOS IP SLAs Operations 35-1

Understanding Cisco IOS IP SLAs 35-1Using Cisco IOS IP SLAs to Measure Network Performance 35-2IP SLAs Responder and IP SLAs Control Protocol 35-3Response Time Computation for IP SLAs 35-4

Configuring IP SLAs Operations 35-5Default Configuration 35-5Configuration Guidelines 35-5

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Configuring the IP SLAs Responder 35-6

Monitoring IP SLAs Operations 35-6

C H A P T E R 36 Configuring QoS 36-1

Understanding QoS 36-1Basic QoS Model 36-3Classification 36-5

Classification Based on QoS ACLs 36-7Classification Based on Class Maps and Policy Maps 36-7

Policing and Marking 36-8Policing on Physical Ports 36-8

Mapping Tables 36-10Queueing and Scheduling Overview 36-11

Weighted Tail Drop 36-11SRR Shaping and Sharing 36-12Queueing and Scheduling on Ingress Queues 36-13Queueing and Scheduling on Egress Queues 36-15

Packet Modification 36-18

Configuring Auto-QoS 36-19Generated Auto-QoS Configuration 36-19Effects of Auto-QoS on the Configuration 36-24Auto-QoS Configuration Guidelines 36-24Enabling Auto-QoS for VoIP 36-25Auto-QoS Configuration Example 36-26

Displaying Auto-QoS Information 36-27

Configuring Standard QoS 36-28Default Standard QoS Configuration 36-28

Default Ingress Queue Configuration 36-29Default Egress Queue Configuration 36-29Default Mapping Table Configuration 36-30

Standard QoS Configuration Guidelines 36-31QoS ACL Guidelines 36-31Policing Guidelines 36-31General QoS Guidelines 36-32

Enabling QoS Globally 36-32Configuring Classification Using Port Trust States 36-32

Configuring the Trust State on Ports within the QoS Domain 36-33Configuring the CoS Value for an Interface 36-34Configuring a Trusted Boundary to Ensure Port Security 36-35

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Enabling DSCP Transparency Mode 36-36Configuring the DSCP Trust State on a Port Bordering Another QoS Domain 36-37

Configuring a QoS Policy 36-39Classifying Traffic by Using ACLs 36-39Classifying Traffic by Using Class Maps 36-42Classifying, Policing, and Marking Traffic on Physical Ports by Using Policy Maps 36-44Classifying, Policing, and Marking Traffic by Using Aggregate Policers 36-48

Configuring DSCP Maps 36-50Configuring the CoS-to-DSCP Map 36-51Configuring the IP-Precedence-to-DSCP Map 36-52Configuring the Policed-DSCP Map 36-53Configuring the DSCP-to-CoS Map 36-54Configuring the DSCP-to-DSCP-Mutation Map 36-55

Configuring Ingress Queue Characteristics 36-56Mapping DSCP or CoS Values to an Ingress Queue and Setting WTD Thresholds 36-57Allocating Buffer Space Between the Ingress Queues 36-58Allocating Bandwidth Between the Ingress Queues 36-59Configuring the Ingress Priority Queue 36-60

Configuring Egress Queue Characteristics 36-61Configuration Guidelines 36-61Allocating Buffer Space to and Setting WTD Thresholds for an Egress Queue-Set 36-61Mapping DSCP or CoS Values to an Egress Queue and to a Threshold ID 36-64Configuring SRR Shaped Weights on Egress Queues 36-65Configuring SRR Shared Weights on Egress Queues 36-66Configuring the Egress Expedite Queue 36-67Limiting the Bandwidth on an Egress Interface 36-67

Displaying Standard QoS Information 36-68

C H A P T E R 37 Configuring IPv6 Host Functions 37-1

Understanding IPv6 37-1IPv6 Addresses 37-2Supported IPv6 Host Features 37-2

128-Bit Wide Unicast Addresses 37-3DNS for IPv6 37-3ICMPv6 37-3Neighbor Discovery 37-3IPv6 Stateless Autoconfiguration and Duplicate Address Detection 37-4IPv6 Applications 37-4Dual IPv4 and IPv6 Protocol Stacks 37-4

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Static Routes for IPv6 37-5SNMP and Syslog Over IPv6 37-5HTTP(S) Over IPv6 37-6

Configuring IPv6 37-6Default IPv6 Configuration 37-6Configuring IPv6 Addressing and Enabling IPv6 Host 37-6Configuring IPv6 ICMP Rate Limiting 37-8Configuring Static Routes for IPv6 37-9

Displaying IPv6 37-10

C H A P T E R 38 Configuring EtherChannels and Link-State Tracking 38-1

Understanding EtherChannels 38-1EtherChannel Overview 38-2Port-Channel Interfaces 38-3Port Aggregation Protocol 38-4

PAgP Modes 38-4PAgP Interaction with Virtual Switches and Dual-Active Detection 38-5PAgP Interaction with Other Features 38-5

Link Aggregation Control Protocol 38-5LACP Modes 38-6LACP Interaction with Other Features 38-6

EtherChannel On Mode 38-6Load Balancing and Forwarding Methods 38-7

Configuring EtherChannels 38-8Default EtherChannel Configuration 38-9EtherChannel Configuration Guidelines 38-9Configuring Layer 2 EtherChannels 38-10Configuring EtherChannel Load Balancing 38-13Configuring the PAgP Learn Method and Priority 38-14Configuring LACP Hot-Standby Ports 38-15

Configuring the LACP System Priority 38-16Configuring the LACP Port Priority 38-16

Displaying EtherChannel, PAgP, and LACP Status 38-17

Understanding Link-State Tracking 38-18

Configuring Link-State Tracking 38-20Default Link-State Tracking Configuration 38-20Link-State Tracking Configuration Guidelines 38-21Configuring Link-State Tracking 38-21Displaying Link-State Tracking Status 38-22

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C H A P T E R 39 Troubleshooting 39-1

Recovering from a Software Failure 39-2

Recovering from a Lost or Forgotten Password 39-3

Recovering from a Command Switch Failure 39-4Replacing a Failed Command Switch with a Cluster Member 39-4Replacing a Failed Command Switch with Another Switch 39-6

Recovering from Lost Cluster Member Connectivity 39-7

Preventing Autonegotiation Mismatches 39-7

SFP Module Security and Identification 39-8

Monitoring SFP Module Status 39-8

Using Ping 39-8Understanding Ping 39-9Executing Ping 39-9

Using Layer 2 Traceroute 39-10Understanding Layer 2 Traceroute 39-10Usage Guidelines 39-10Displaying the Physical Path 39-11

Using IP Traceroute 39-11Understanding IP Traceroute 39-11Executing IP Traceroute 39-12

Using TDR 39-13Understanding TDR 39-13Running TDR and Displaying the Results 39-14

Using Debug Commands 39-14Enabling Debugging on a Specific Feature 39-14Enabling All-System Diagnostics 39-15Redirecting Debug and Error Message Output 39-15

Using the show platform forward Command 39-16

Using the crashinfo Files 39-17Basic crashinfo Files 39-17Extended crashinfo Files 39-18

Troubleshooting Tables 39-18Troubleshooting CPU Utilization 39-18

Possible Symptoms of High CPU Utilization 39-18Verifying the Problem and Cause 39-19

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A P P E N D I X A Supported MIBs A-1

MIB List A-1

Using FTP to Access the MIB Files A-3

A P P E N D I X B Working with the Cisco IOS File System, Configuration Files, and Software Images B-1

Working with the Flash File System B-1Displaying Available File Systems B-2Setting the Default File System B-2Displaying Information about Files on a File System B-3Changing Directories and Displaying the Working Directory B-4Creating and Removing Directories B-4Copying Files B-5Deleting Files B-5Creating, Displaying, and Extracting tar Files B-6

Creating a tar File B-6Displaying the Contents of a tar File B-6Extracting a tar File B-7

Displaying the Contents of a File B-8

Working with Configuration Files B-8Guidelines for Creating and Using Configuration Files B-9Configuration File Types and Location n B-9Creating a Configuration File By Using a Text Editor B-10Copying Configuration Files By Using TFTP B-10

Preparing to Download or Upload a Configuration File B y Using TFTP B-10Downloading the Configuration File By Using TFTP B-11Uploading the Configuration File By Using TFTP B-11

Copying Configuration Files By Using FTP B-12Preparing to Download or Upload a Configuration File By Using FTP B-13Downloading a Configuration File By Using FTP B-13Uploading a Configuration File By Using FTP B-14

Copying Configuration Files By Using RCP B-15Preparing to Download or Upload a Configuration File By Using RCP B-16Downloading a Configuration File By Using RCP B-17Uploading a Configuration File By Using RCP B-18

Clearing Configuration Information B-18Clearing the Startup Configuration File B-19Deleting a Stored Configuration File B-19

Replacing and Rolling Back Configurations B-19Understanding Configuration Replacement and Rollback B-19

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Configuration Guidelines B-21Configuring the Configuration Archive B-21Performing a Configuration Replacement or Rollback Operation B-22

Working with Software Images B-23Image Location on the Switch B-24tar File Format of Images on a Server or Cisco.com B-24Copying Image Files By Using TFTP B-25

Preparing to Download or Upload an Image File By Using TFTP B-25Downloading an Image File By Using TFTP B-26Uploading an Image File By Using TFTP B-28

Copying Image Files By Using FTP B-28Preparing to Download or Upload an Image File By Using FTP B-29Downloading an Image File By Using FTP B-30Uploading an Image File By Using FTP B-31

Copying Image Files By Using RCP B-32Preparing to Download or Upload an Image File By Using RCP B-33Downloading an Image File By Using RCP B-34Uploading an Image File By Using RCP B-36

A P P E N D I X C Unsupported Commands in Cisco IOS Release 12.2(50)SE C-1

Access Control Lists C-1Unsupported Privileged EXEC Commands C-1Unsupported Global Configuration Commands C-2Unsupported Route-Map Configuration Commands C-2

Boot Loader Commands C-2Unsupported Global Configuration Commands C-2

Debug Commands C-2Unsupported Privileged EXEC Commands C-2

|IGMP Snooping Commands C-2Unsupported Global Configuration Commands C-2

Interface Commands C-3Unsupported Privileged EXEC Commands C-3Unsupported Global Configuration Commands C-3Unsupported Interface Configuration Commands C-3

MAC Address Commands C-3Unsupported Privileged EXEC Commands C-3Unsupported Global Configuration Commands C-4

Miscellaneous C-4Unsupported User EXEC Commands C-4

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Unsupported Privileged EXEC Commands C-4Unsupported Global Configuration Commands C-4

Network Address Translation (NAT) Commands C-4Unsupported Privileged EXEC Commands C-4

QoS C-4Unsupported Global Configuration Command C-4Unsupported Interface Configuration Commands C-5Unsupported Policy-Map Configuration Command C-5

RADIUS C-5Unsupported Global Configuration Commands C-5

SNMP C-5Unsupported Global Configuration Commands C-5

SNMPv3 C-5Unsupported 3DES Encryption Commands C-5

Spanning Tree C-6Unsupported Global Configuration Command C-6Unsupported Interface Configuration Command C-6

VLAN C-6Unsupported Global Configuration Command C-6Unsupported vlan-config Command C-6Unsupported User EXEC Commands C-6

VTP C-6Unsupported Privileged EXEC Commands C-6

I N D E X

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Preface

AudienceThis guide is for the networking professional managing the IE 3000 switch, hereafter referred to as the switch. Before using this guide, you should have experience working with the Cisco IOS software and be familiar with the concepts and terminology of Ethernet and local area networking.

PurposeThis guide provides the information that you need to configure Cisco IOS software features on your switch. This guide provides procedures for using the commands that have been created or changed for use with the switch. It does not provide detailed information about these commands. For detailed information about these commands, see the IE 3000 Switch Command Reference for this release. For information about the standard Cisco IOS Release 12.2 commands, see the Cisco IOS documentation set available from the Cisco.com home page at Documentation > Cisco IOS Software.

This guide does not provide detailed information on the graphical user interfaces (GUIs) for the embedded device manager or for Cisco Network Assistant (hereafter referred to as Network Assistant) that you can use to manage the switch. However, the concepts in this guide are applicable to the GUI user. For information about the device manager, see the switch online help. For information about Network Assistant, see Getting Started with Cisco Network Assistant, available on Cisco.com.

This guide does not describe system messages you might encounter or how to install your switch. For more information, see the IE 3000 Switch System Message Guide for this release and the IE 3000 Switch Hardware Installation Guide.

For documentation updates, see the release notes for this release.

ConventionsThis publication uses these conventions to convey instructions and information:

Command descriptions use these conventions:

Commands and keywords are in boldface text.

Arguments for which you supply values are in italic.

Square brackets ([ ]) mean optional elements.

Braces ({ }) group required choices, and vertical bars ( | ) separate the alternative elements.

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Braces and vertical bars within square brackets ([{ | }]) mean a required choice within an optional element.

Interactive examples use these conventions:

Terminal sessions and system displays are in screen font.

Information you enter is in boldface screen font.

Nonprinting characters, such as passwords or tabs, are in angle brackets (< >).

Notes, cautions, and timesavers use these conventions and symbols:

Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Related PublicationsThese documents provide complete information about the switch and are available from this Cisco.com site:

http://www.cisco.com/en/US/products/ps9703/tsd_products_support_series_home.html

Note Before installing, configuring, or upgrading the switch, see these documents:

For initial configuration information, see the Using Express Setup section in the getting started guide or the Configuring the Switch with the CLI-Based Setup Program appendix in the hardware installation guide.

For device manager requirements, see the System Requirements section in the release notes (not orderable but available on Cisco.com).

For Network Assistant requirements, see the Getting Started with Cisco Network Assistant (not orderable but available on Cisco.com).

For cluster requirements, see the Release Notes for Cisco Network Assistant (not orderable but available on Cisco.com).

For upgrading information, see the Downloading Software section in the release notes.

See these documents for other information about the switch:

Release Notes for the Cisco IE 3000 Switch

Cisco IE 3000 Switch Software Configuration Guide

Cisco IE 3000 Switch Command Reference

Cisco IE 3000 Switch System Message Guide

Device manager online help (available on the switch)

Cisco IE 3000 Switch Hardware Installation Guide

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Cisco IE 3000 Switch Getting Started Guide

Regulatory Compliance and Safety Information for the Cisco IE 3000 Switch

Getting Started with Cisco Network Assistant

Release Notes for Cisco Network Assistant

Cisco Small Form-Factor Pluggable Modules Installation Notes

For more information about the Network Admission Control (NAC) features, see the Network Admission Control Software Configuration Guide

These compatibility matrix documents are available from this Cisco.com site:

http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html

Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix

Obtaining Documentation, Obtaining Support, and Security Guidelines

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly Whats New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the Whats New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.

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Preface

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C H A P T E R 1

Overview

This chapter provides these topics about the IE 3000 switch software:

Features, page 1-1

Default Settings After Initial Switch Configuration, page 1-11

Network Configuration Examples, page 1-13

Where to Go Next, page 1-20

In this document, IP refers to IP Version 4 (IPv4) unless there is a specific reference to IP Version 6 (IPv6).

FeaturesSome features described in this chapter are available only on the cryptographic (supports encryption) version of the software. You must obtain authorization to use this feature and to download the cryptographic version of the software from Cisco.com. For more information, see the release notes for this release.

Ease-of-Deployment and Ease-of-Use Features, page 1-2

Performance Features, page 1-3

Management Options, page 1-4

Manageability Features, page 1-5 (includes a feature requiring the cryptographic version of the software)

Availability and Redundancy Features, page 1-6

VLAN Features, page 1-7

Security Features, page 1-8 (includes a feature requiring the cryptographic version of the software)

QoS and CoS Features, page 1-9

Monitoring Features, page 1-10

1-1Cisco IE 3000 Switch Software Configuration Guide

Chapter 1 OverviewFeatures

Ease-of-Deployment and Ease-of-Use Features Express Setup for quickly configuring a switch for the first time with basic IP information, contact

information, switch and Telnet passwords, and Simple Network Management Protocol (SNMP) information through a browser-based program. For more information about Express Setup, see the getting started guide.

User-defined and Cisco-default Smartports macros for creating custom switch configurations for simplified deployment across the network.

A removable compact flash card that stores the Cisco IOS software image and configuration files for the switch. You can replace and upgrade the switch without reconfiguring the software features. Updated boot loader that has a secondary boot loader image that supports the compact flash file system driver to access the compact flash memory card. The switch boot loader contains a primary boot loader and a secondary boot loader that both reside in the boot flash.

An embedded device manager GUI for configuring and monitoring a single switch through a web browser. For information about launching the device manager, see the getting started guide. For more information about the device manager, see the switch online help.

Cisco Network Assistant (hereafter referred to as Network Assistant) for

Managing communities, which are device groups like clusters, except that they can contain routers and access points and can be made more secure.

Simplifying and minimizing switch and switch cluster management from anywhere in your intranet.

Accomplishing multiple configuration tasks from a single graphical interface without needing to remember command-line interface (CLI) commands to accomplish specific tasks.

Interactive guide mode that guides you in configuring complex features such as VLANs, ACLs, and quality of service (QoS).

Configuration wizards that prompt you to provide only the minimum required information to configure complex features such as QoS priorities for traffic, priority levels for data applications, and security.

Downloading an image to a switch.

Applying actions to multiple ports and multiple switches at the same time, such as VLAN and QoS settings, inventory and statistic reports, link- and switch-level monitoring and troubleshooting, and multiple switch software upgrades.

Viewing a topology of interconnected devices to identify existing switch clusters and eligible switches that can join a cluster and to identify link information between switches.

Monitoring real-time status of a switch or multiple switches from the LEDs on the front-panel images. The system, redundant power system (RPS), and port LED colors on the images are similar to those used on the physical LEDs.

Note The Network Assistant must be downloaded from cisco.com/go/cna.

Switch clustering technology for

Unified configuration, monitoring, authentication, and software upgrade of multiple, cluster-capable switches, regardless of their geographic proximity and interconnection media, including Ethernet, Fast Ethernet, Fast EtherChannel, small form-factor pluggable (SFP) modules, Gigabit Ethernet, and Gigabit EtherChannel connections. For a list of cluster-capable switches, see the release notes.

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Chapter 1 OverviewFeatures

Automatic discovery of candidate switches and creation of clusters of up to 16 switches that can be managed through a single IP address.

Extended discovery of cluster candidates that are not directly connected to the command switch.

Performance Features Cisco EnergyWise manages the energy usage of power over Ethernet (PoE) entities.

Autosensing of port speed and autonegotiation of duplex mode on all switch ports for optimizing bandwidth

Automatic-medium-dependent interface crossover (auto-MDIX) capability on 10/100 and 10/100/1000 Mb/s interfaces and on 10/100/1000 BASE-TX SFP module interfaces that enables the interface to automatically detect the required cable connection type (straight-through or crossover) and to configure the connection appropriately

Support for up to 9000 bytes for frames that are bridged in hardware, and up to 2000 bytes for frames that are bridged by software

IEEE 802.3x flow control on all ports (the switch does not send pause frames)

EtherChannel for enhanced fault tolerance and for providing up to 8 Gb/s (Gigabit EtherChannel) or 800 Mb/s (Fast EtherChannel) full-duplex bandwidth among switches, routers, and servers

Port Aggregation Protocol (PAgP) and Link Aggregation Control Protocol (LACP) for automatic creation of EtherChannel links

Forwarding of Layer 2 packets at Gigabit line rate

Per-port storm control for preventing broadcast, multicast, and unicast storms

Port blocking on forwarding unknown Layer 2 unknown unicast, multicast, and bridged broadcast traffic

Internet Group Management Protocol (IGMP) snooping for IGMP Versions 1, 2, and 3 for efficiently forwarding multimedia and multicast traffic

IGMP report suppression for sending only one IGMP report per multicast router query to the multicast devices (supported only for IGMPv1 or IGMPv2 queries)

IGMP snooping querier support to configure switch to generate periodic IGMP general query messages

IPv6 host support for basic IPv6 management

Multicast Listener Discovery (MLD) snooping to enable efficient distribution of IP version 6 (IPv6) multicast data to clients and routers in a switched network

Multicast VLAN registration (MVR) to continuously send multicast streams in a multicast VLAN while isolating the streams from subscriber VLANs for bandwidth and security reasons

IGMP filtering for controlling the set of multicast groups to which hosts on a switch port can belong

IGMP throttling for configuring the action when the maximum number of entries is in the IGMP forwarding table

IGMP leave timer for configuring the leave latency for the network

Switch Database Management (SDM) templates for allocating system resources to maximize support for user-selected features

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Support for Cisco IOS IP Service Level Agreements (SLAs) responder that allows the system to anticipate and respond to Cisco IOS IP SLAs request packets for monitoring network performance. See the release notes for responder configuration.

Configurable small-frame arrival threshold to prevent storm control when small frames (64 bytes or less) arrive on an interface at a specified rate (the threshold)

Flex Link Multicast Fast Convergence to reduce the multicast traffic convergence time after a Flex Link failure

RADIUS server load balancing to allow access and authentication requests to be distributed evenly across a server group.

Management Options An embedded device managerThe device manager is a GUI that is integrated in the software

image. You use it to configure and to monitor a single switch. For information about launching the device manager, see the getting started guide. For more information about the device manager, see the switch online help.

Network AssistantNetwork Assistant is a network management application that can be downloaded from Cisco.com. You use it to manage a single switch, a cluster of switches, or a community of devices. For more information about Network Assistant, see Getting Started with Cisco Network Assistant, available on Cisco.com.

CLIThe Cisco IOS software supports desktop- and multilayer-switching features. You can access the CLI either by connecting your management station directly to the switch console port or by using Telnet from a remote management station. For more information about the CLI, see Chapter 2, Using the Command-Line Interface.

SNMPSNMP management applications such as CiscoWorks2000 LAN Management Suite (LMS) and HP OpenView. You can manage from an SNMP-compatible management station that is running platforms such as HP OpenView or SunNet Manager. The switch supports a comprehensive set of MIB extensions and four remote monitoring (RMON) groups. For more information about using SNMP, see Chapter 33, Configuring SNMP.

Cisco IOS Configuration Engine (previously known to as the Cisco IOS CNS agent)-Configuration service automates the deployment and management of network devices and services. You can automate initial configurations and configuration updates by generating switch-specific configuration changes, sending them to the switch, executing the configuration change, and logging the results.

For more information about CNS, see Chapter 6, Configuring Cisco IOS Configuration Engine.

CIPCommon Industrial Protocol (CIP) is a peer-to-peer application protocol that provides application level connections between the switch and industrial devices such as I/O controllers, sensors, relays, and so forth.You can manage the switch using CIP-based management tools, such as RSLogix. For more information about the CIP commands that the switch supports, see the command reference.

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Manageability Features CNS embedded agents for automating switch management, configuration storage, and delivery

DHCP for automating configuration of switch information (such as IP address, default gateway, hostname, and Domain Name System [DNS] and TFTP server names)

DHCP relay for forwarding User Datagram Protocol (UDP) broadcasts, including IP address requests, from DHCP clients

DHCP server for automatic assignment of IP addresses and other DHCP options to IP hosts

DHCP-based autoconfiguration and image update to download a specified configuration a new image to a large number of switches

DHCP server port-based address allocation for the preassignment of an IP address to a switch port

Directed unicast requests to a DNS server for identifying a switch through its IP address and its corresponding hostname and to a TFTP server for administering software upgrades from a TFTP server

Address Resolution Protocol (ARP) for identifying a switch through its IP address and its corresponding MAC address

Unicast MAC address filtering to drop packets with specific source or destination MAC addresses

Configurable MAC address scaling that allows disabling MAC address learning on a VLAN to limit the size of the MAC address table

Cisco Discovery Protocol (CDP) Versions 1 and 2 for network topology discovery and mapping between the switch and other Cisco devices on the network

Link Layer Discovery Protocol (LLDP) and LLDP Media Endpoint Discovery (LLDP-MED) for interoperability with third-party IP phones

LLDP media extensions (LLDP-MED) location TLV that provides location information from the switch to the endpoint device

Network Time Protocol (NTP) for providing a consistent time stamp to all switches from an external source

Precision Time Protocol (PTP) as defined in the IEEE 1588 standard to synchronize with nanosecond accuracy the real-time clocks of the devices in a network

Cisco IOS File System (IFS) for providing a single interface to all file systems that the switch uses

Support for the SSM PIM protocol to optimize multicast applications, such as video

Source Specific Multicast (SSM) mapping for multicast applications provides a mapping of source to group, allowing listeners to connect to multicast sources dynamically and reduces dependencies on the application

Support for Enhanced Interior Gateway Routing Protocol (EIGRP) IPv6 to utilize IPv6 transport, communicate with IPv6 peers, and advertise IPv6 routes

Support for these IP services, making them VRF aware so that they can operate on multiple routing instances: HSRP, GLBP, uRPF, ARP, SNMP, IP SLA, TFTP, FTP, syslog, traceroute, and ping

Configuration logging to log and to view changes to the switch configuration

Unique device identifier to provide product identification information through a show inventory user EXEC command display

In-band management access through the device manager over a Netscape Navigator or Microsoft Internet Explorer browser session

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In-band management access for up to 16 simultaneous Telnet connections for multiple CLI-based sessions over the network

In-band management access for up to five simultaneous, encrypted Secure Shell (SSH) connections for multiple CLI-based sessions over the network (requires the cryptographic version of the software)

In-band management access through SNMP Versions 1, 2c, and 3 get and set requests

Out-of-band management access through the switch console port to a directly attached terminal or to a remote terminal through a serial connection or a modem

Secure Copy Protocol (SCP) feature to provide a secure and authenticated method for copying switch configuration or switch image files (requires the cryptographic version of the software)

Configuration replacement and rollback to replace the running configuration on a switch with any saved Cisco IOS configuration file

The HTTP client in Cisco IOS supports can send requests to both IPv4 and IPv6 HTTP server, and the HTTP server in Cisco IOS can service HTTP requests from both IPv4 and IPv6 HTTP clients

Simple Network and Management Protocol (SNMP) can be configured over IPv6 transport so that an IPv6 host can send SNMP queries and receive SNMP notifications from a device running IPv6

IPv6 stateless autoconfiguration to manage link, subnet, and site addressing changes, such as management of host and mobile IP addresses

Disabling MAC address learning on a VLAN

DHCP server port-based address allocation for the preassignment of an IP address to a switch port.

Wired location service sends location and attachment tracking information for connected devices to a Cisco Mobility Services Engine (MSE).

CPU utilization threshold trap monitors CPU utilization.

LLDP-MED network-policy profile time, length, value (TLV) for creating a profile for voice and voice-signalling by specifying the values for VLAN, class of service (CoS), differentiated services code point (DSCP), and tagging mode

Availability and Redundancy Features UniDirectional Link Detection (UDLD) and aggressive UDLD for detecting and disabling

unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults

IEEE 802.1D Spanning Tree Protocol (STP) for redundant backbone connections and loop-free networks. STP has these features:

Up to 128 spanning-tree instances supported

Per-VLAN spanning-tree plus (PVST+) for load balancing across VLANs

Rapid PVST+ for load balancing across VLANs and providing rapid convergence of spanning-tree instances

UplinkFast and BackboneFast for fast convergence after a spanning-tree topology change and for achieving load balancing between redundant uplinks, including Gigabit uplinks

IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) for grouping VLANs into a spanning-tree instance and for providing multiple forwarding paths for data traffic and load balancing and rapid per-VLAN Spanning-Tree plus (rapid-PVST+) based on the IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) for rapid convergence of the spanning tree by immediately changing root and designated ports to the forwarding state

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Optional spanning-tree features available in PVST+, rapid-PVST+, and MSTP mode:

Port Fast for eliminating the forwarding delay by enabling a port to immediately change from the blocking state to the forwarding state

BPDU guard for shutting down Port Fast-enabled ports that receive bridge protocol data units (BPDUs)

BPDU filtering for preventing a Port Fast-enabled port from sending or receiving BPDUs

Root guard for preventing switches outside the network core from becoming the spanning-tree root

Loop guard for preventing alternate or root ports from becoming designated ports because of a failure that leads to a unidirectional link

Support for Resilient Ethernet Protocol (REP) for improved convergence times and network loop prevention without the use of spanning tree, including configuration of REP edge ports when the neighbor port is not REP-capable

Flex Link Layer 2 interfaces to back up one another as an alternative to STP for basic link redundancy

Link-state tracking to mirror the state of the ports that carry upstream traffic from connected hosts and servers, and to allow the failover of the server traffic to an operational link on another Cisco Ethernet switch.

VLAN Features Support for up to 255 VLANs for assigning users to VLANs associated with appropriate network

resources, traffic patterns, and bandwidth

Support for VLAN IDs in the 1 to 4094 range as allowed by the IEEE 802.1Q standard

VLAN Query Protocol (VQP) for dynamic VLAN membership

IEEE 802.1Q trunking encapsulation on all ports for network moves, adds, and changes; management and control of broadcast and multicast traffic; and network security by establishing VLAN groups for high-security users and network resources

Dynamic Trunking Protocol (DTP) for negotiating trunking on a link between two devices and for negotiating the type of trunking encapsulation (IEEE 802.1Q) to be used

VLAN Trunking Protocol (VTP) and VTP pruning for reducing network traffic by restricting flooded traffic to links destined for stations receiving the traffic

Voice VLAN for creating subnets for voice traffic from Cisco IP Phones

VLAN 1 minimization for reducing the risk of spanning-tree loops or storms by allowing VLAN 1 to be disabled on any individual VLAN trunk link. With this feature enabled, no user traffic is sent or received on the trunk. The switch CPU continues to send and receive control protocol frames.

VLAN Flex Link Load Balancing to provide Layer 2 redundancy without requiring Spanning Tree Protocol (STP). A pair of interfaces configured as primary and backup links can load balance traffic based on VLAN.

Support for 802.1x authentication with restricted VLANs (also known as authentication failed VLANs)

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Security Features IP Service Level Agreements (IP SLAs) responder support that allows the switch to be a target

device for IP SLAs active traffic monitoring

Web authentication to allow a supplicant (client) that does not support IEEE 802.1x functionality to be authenticated using a web browser

Local web authentication banner so that a custom banner or an image file can be displayed at a web authentication login screen

Password-protected access (read-only and read-write access) to management interfaces (device manager, Network Assistant, and the CLI) for protection against unauthorized configuration changes

Multilevel security for a choice of security level, notification, and resulting actions

Static MAC addressing for ensuring security

Protected port option for restricting the forwarding of traffic to designated ports on the same switch

Port security option for limiting and identifying MAC addresses of the stations allowed to access the port

VLAN aware port security option to shut down the VLAN on the port when a violation occurs, instead of shutting down the entire port.

Port security aging to set the aging time for secure addresses on a port

BPDU guard for shutting down a Port Fast-configured port when an invalid configuration occurs

Standard and extended IP access control lists (ACLs) for defining inbound security policies on Layer 2 interfaces (port ACLs)

Extended MAC access control lists for defining security policies in the inbound direction on Layer 2 interfaces

Source and destination MAC-based ACLs for filtering non-IP traffic

DHCP snooping to filter untrusted DHCP messages between untrusted hosts and DHCP servers

IP source guard to restrict traffic on nonrouted interfaces by filtering traffic based on the DHCP snooping database and IP source bindings

Dynamic ARP inspection to prevent malicious attacks on the switch by not relaying invalid ARP requests and responses to other ports in the same VLAN

IEEE 802.1x port-based authentication to prevent unauthorized devices (clients) from gaining access to the network. These features are supported:

Multidomain authentication (MDA) to allow both a data device and a voice device, such as an IP phone (Cisco or non-Cisco), to independently authenticate on the same IEEE 802.1x-enabled switch port

VLAN assignment for restricting 802.1x-authenticated users to a specified VLAN

Port security for controlling access to 802.1x ports

Voice VLAN to permit a Cisco IP Phone to access the voice VLAN regardless of the authorized or unauthorized state of the port

IP phone detection enhancement to detect and recognize a Cisco IP phone.

Guest VLAN to provide limited services to non-802.1x-compliant users

Restricted VLAN to provide limited services to users who are 802.1x compliant, but do not have the credentials to authenticate via the standard 802.1x processes

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802.1x accounting to track network usage

802.1x with wake-on-LAN to allow dormant PCs to be powered on based on the receipt of a specific Ethernet frame

802.1x readiness check to determine the readiness of connected end hosts before configuring IEEE 802.1x on the switch

Voice aware 802.1x security to apply traffic violation actions only on the VLAN on which a security violation occurs.

MAC authentication bypass to authorize clients based on the client MAC address.

Network Admission Control (NAC) Layer 2 802.1x validation of the antivirus condition or posture of endpoint systems or clients before granting the devices network access.

For information about configuring NAC Layer 2 802.1x validation, see the Configuring NAC Layer 2 802.1x Validation section on page 12-49.

Network Edge Access Topology (NEAT) with 802.1X switch supplicant, host authorization with CISP, and auto enablement to authenticate a switch outside a wiring closet as a supplicant to another switch.

IEEE 802.1x with open access to allow a host to access the network before being authenticated.

IEEE 802.1x authentication with downloadable ACLs and redirect URLs to allow per-user ACL downloads from a Cisco Secure ACS server to an authenticated switch.

Flexible-authentication sequencing to configure the order of the authentication methods that a port tries when authenticating a new host.

Multiple-user authentication to allow more than one host to authenticate on an 802.1x-enabled port.

TACACS+, a proprietary feature for managing network security through a TACACS server

RADIUS for verifying the identity of, granting access to, and tracking the actions of remote users through authentication, authorization, and accounting (AAA) services

Secure Socket Layer (SSL) Version 3.0 support for the HTTP 1.1 server authentication, encryption, and message integrity and HTTP client authentication to allow secure HTTP communications (requires the cryptographic version of the software)

QoS and CoS Features Automatic QoS (auto-QoS) to simplify the deployment of existing QoS features by classifying

traffic and configuring egress queues

Classification

IP type-of-service/Differentiated Services Code Point (IP ToS/DSCP) and IEEE 802.1p CoS marking priorities on a per-port basis for protecting the performance of mission-critical applications

IP ToS/DSCP and IEEE 802.1p CoS marking based on flow-based packet classification (classification based on information in the MAC, IP, and TCP/UDP headers) for high-performance quality of service at the network edge, allowing for differentiated service levels for different types of network traffic and for prioritizing mission-critical traffic in the network

Trusted port states (CoS, DSCP, and IP precedence) within a QoS domain and with a port bordering another QoS domain

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Trusted boundary for detecting the presence of a Cisco IP Phone, trusting the CoS value received, and ensuring port security

Policing

Traffic-policing policies on the switch port for managing how much of the port bandwidth should be allocated to a specific traffic flow

If you configure multiple class maps for a hierarchical policy map, each class map can be associated with its own port-level (second-level) policy map. Each second-level policy map can have a different policer.

Aggregate policing for policing traffic flows in aggregate to restrict specific applications or traffic flows to metered, predefined rates

Out-of-Profile

Out-of-profile markdown for packets that exceed bandwidth utilization