MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3S

MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3SFirst Published: November 08, 2011

Last Modified: July 30, 2013

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C O N T E N T S

C H A P T E R 1 L2VPN Protocol-Based CLIs 1

Finding Feature Information 1

Information About L2VPN Protocol-Based CLIs 1

Overview of L2VPN Protocol-Based CLIs 1

Benefits of L2VPN Protocol-Based CLIs 2

L2VPN Protocol-Based CLI Changes 3

MPLS L2VPN Protocol-Based CLI: Examples 7

Additional References 10

Feature Information for L2VPN Protocol-Based CLIs 10

C H A P T E R 2 Any Transport over MPLS 13

Finding Feature Information 14

Prerequisites for Any Transport over MPLS 14

Restrictions for Any Transport over MPLS 14

General Restrictions 17

ATM AAL5 over MPLS Restrictions 17

ATM Cell Relay over MPLS Restrictions 17

Ethernet over MPLS (EoMPLS) Restrictions 17

Per-Subinterface MTU for Ethernet over MPLS Restrictions 18

Frame Relay over MPLS Restrictions 18

HDLC over MPLS Restrictions 18

PPP over MPLS Restrictions 19

Tunnel Selection Restrictions 19

Experimental Bits with AToM Restrictions 19

Remote Ethernet Port Shutdown Restrictions 19

Information About Any Transport over MPLS 20

How AToM Transports Layer 2 Packets 20

MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3S iii

How AToM Transports Layer 2 Packets using the commands associated with the L2VPN

Protocol-Based CLIs feature 21

Benefits of AToM 22

MPLS Traffic Engineering Fast Reroute 22

Maximum Transmission Unit Guidelines for Estimating Packet Size 22

Estimating Packet Size Example 24

Per-Subinterface MTU for Ethernet over MPLS 24

Per-Subinterface MTU for Ethernet over MPLS using the commands associated with the

L2VPN Protocol-Based CLIs feature 25

Frame Relay over MPLS and DTE DCE and NNI Connections 25

Local Management Interface and Frame Relay over MPLS 26

How LMI Works 26

QoS Features Supported with AToM 27

OAM Cell Emulation for ATM AAL5 over MPLS 30

OAM Cell Emulation for ATM AAL5 over MPLS in VC Class Configuration

Mode 31

Any Transport over MPLS (AToM) Remote Ethernet Port Shutdown 31

Any Transport over MPLS (AToM) Remote Ethernet Port Shutdown using the commands

associated with the L2VPN Protocol-Based CLIs feature 32

AToM Load Balancing with Single PW 34

Flow-Aware Transport (FAT) Load Balancing 34

How to Configure Any Transport over MPLS 34

Configuring the Pseudowire Class 34

Configuring the Pseudowire Class using the commands associated with the L2VPN

Protocol-Based CLIs feature 35

Changing the Encapsulation Type and Removing a Pseudowire 37

Changing the Encapsulation Type and Removing a Pseudowire using the commands

associated with the L2VPN Protocol-Based CLIs feature 37

Configuring ATM AAL5 over MPLS 37

Configuring ATM AAL5 over MPLS on PVCs 37

Configuring ATM AAL5 over MPLS on PVCs using the commands associated with

the L2VPN Protocol-Based CLIs feature 39

Configuring ATM AAL5 over MPLS in VC Class Configuration Mode 42

Configuring ATM AAL5 over MPLS in VC Class Configuration Mode using the

commands associated with the L2VPN Protocol-Based CLIs feature 44

MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3Siv

Contents

Configuring OAM Cell Emulation for ATM AAL5 over MPLS 47

Configuring OAM Cell Emulation for ATM AAL5 over MPLS on PVCs 47

ConfiguringOAMCell Emulation forATMAAL5overMPLSonPVCs using the commands

associated with the L2VPN Protocol-Based CLIs feature 49

Configuring OAMCell Emulation for ATMAAL5 over MPLS in VC Class Configuration

Mode 53

Configuring OAMCell Emulation for ATMAAL5 over MPLS in VC Class Configuration

Mode using the commands associated with the L2VPN Protocol-Based CLIs feature

55

Configuring ATM Cell Relay over MPLS 58

Configuring ATM Cell Relay over MPLS in VC Mode 58

Configuring ATM Cell Relay over MPLS in VC Mode using the commands associated

with the L2VPN Protocol-Based CLIs feature 60

Configuring ATM Cell Relay over MPLS in VC Mode Using VC Class Configuration

Mode 63

Configuring ATM Cell Relay over MPLS in VC Mode Using VC Class Configuration

Mode using the commands associated with the L2VPN Protocol-Based CLIs

feature 65

Configuring ATM Cell Relay over MPLS in PVP Mode 68

Configuring ATM Cell Relay over MPLS in PVP Mode using the commands associated

with the L2VPN Protocol-Based CLIs feature 70

Configuring Ethernet over MPLS 72

Configuring Ethernet over MPLS in VLANMode to Connect Two VLAN Networks That

Are in Different Locations. 72

Configuring Ethernet over MPLS in VLANMode to Connect Two VLAN Networks That

Are in Different Locations using the commands associated with the L2VPN

Protocol-Based CLIs feature 74

Configuring Ethernet over MPLS in Port Mode 76

Configuring Ethernet over MPLS in Port Mode using the commands associated with the

L2VPN Protocol-Based CLIs feature 78

Configuring Ethernet over MPLS with VLAN ID Rewrite 80

Configuring Ethernet over MPLS with VLAN ID Rewrite using the commands associated

with the L2VPN Protocol-Based CLIs feature 83

Configuring per-Subinterface MTU for Ethernet over MPLS 86

MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3S v

Contents

Configuring per-Subinterface MTU for Ethernet over MPLS using the commands

associated with the L2VPN Protocol-Based CLIs feature 88

Configuring Frame Relay over MPLS 91

Configuring Frame Relay over MPLS with DLCI-to-DLCI Connections 91

Configuring Frame Relay over MPLS with DLCI-to-DLCI Connections using the

commands associated with the L2VPN Protocol-Based CLIs feature 93

Configuring Frame Relay over MPLS with Port-to-Port Connections 96

Configuring FrameRelay overMPLSwith Port-to-Port Connections using the commands

associated with the L2VPN Protocol-Based CLIs feature 97

Configuring HDLC or PPP over MPLS 99

Configuring HDLC or PPP over MPLS using the commands associated with the L2VPN

Protocol-Based CLIs feature 101

Configuring Tunnel Selection 103

Troubleshooting Tips 105

Configuring Tunnel Selection using the commands associated with the L2VPN

Protocol-Based CLIs feature 106

Troubleshooting Tips using the commands associated with the L2VPN Protocol-Based

CLIs feature 108

Setting Experimental Bits with AToM 109

Enabling the Control Word 111

Enabling the ControlWord using the commands associated with the L2VPN Protocol-Based

CLIs feature 112

Configuring MPLS AToM Remote Ethernet Port Shutdown 113

ConfiguringMPLSAToMRemote Ethernet Port Shutdown using the commands associated

with the L2VPN Protocol-Based CLIs feature 115

Confi