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What Is IP SLAs?
• Is a feature of the Cisco Internetwork Operating System (Cisco IOS).
• collect information about network performance in real time.
• helps the administrator to verify Quality of Service (QoS) levels.
• Ip sla with NMS.
• Previous name rtr(Response Time Reporter).
• Release 12.4
IP SLA Operations
• dhcp
• dns
• echo
• frameRelay
• ftp
• http
• jitter
• pathEcho
• pathJitter
• slm atm interface
• slm atm pvc
• slm controller
• slm frame-relay interface
• slm frame-relay pvc
• slm interface
• tcpConnect
• udpEcho
• voip4
To see sla operations on cisco device:#Show ip sla application
Note:Switch dose not support voip
Cisco IOS IP SLAs can send SNMP traps that are triggered by events such as the following:
• Connection loss
• Timeout
• Round-trip time threshold
• Average jitter threshold
• One-way packet loss
• One-way jitter
• One-way mean opinion score (MOS)
• One-way latency
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implement IP SLAs network performance measurement
• Enable the IP SLAs responder, if required.
• Configure the required IP SLAs operation type.
• Configure any options available for the specified operation type.
• Configure threshold conditions, if required.
• Schedule the operation to run.
• Display and interpret the results of the operation using the Cisco IOS CLI or a network management system (NMS) system with SNMP.
configurations
Configure ip sla operation:
• ip sla monitor 1
• type echo protocol ipIcmpEcho 172.16.0.1
• timeout 1000
• threshold 2
• frequency 3
• ip sla monitor schedule 1 life forever start-time now
Configure track object:
track 1 rtr 1 reachability
Configure static route:
ip route 10.0.0.0 255.255.255.0 FastEthernet0/1 track 1
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Note:Version 12.3(14)T6
verification
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To verify ip sla operation:show ip sla ?statisticsapmapplicationauthentication collection-statistics configuration distribution-statistics enhanced-history group history operational-statereaction-configurationreaction-triggerresponder\totals-statistics