To enable the IP SLAs Responder on the destination device

To enable the IP SLAs Responder on the destination device:

Note: The following instructions are example configuration instructions for configuring an IP SLA destination device. For additional configuration information, see the Cisco IOS IP SLAs Configuration Guide, Release 12.4.

1. In the Cisco Command Line Interface (CLI) on the destination device, enable the privileged EXEC mode, enter:
   Router> enable
   Enter your password if prompted.
2. Start the global configuration mode, enter:
   Router# configure terminal
3. Enable the IP SLA responder, enter:
   Router(config)# ip sla responder
4. Repeat steps 1 through 3 for each IP SLA device (responder) for which you want to monitor VoIP performance on the network.
5. Exit the global configuration mode and return to the privileged EXEC mode, enter:
   Router(config)# exit

To configure the IP SLA source device:

Note: The following instructions are example configuration instructions for configuring an IP SLA source device (responder). For additional configuration information, see the Cisco IOS IP SLAs Configuration Guide, Release 12.4.

1. In the Cisco Command Line Interface (CLI) on the source device, enable the privileged EXEC mode, enter:
   Router> enable
   Enter your password if prompted.
2. Start the global configuration mode, enter:
   Router# configure terminal

   Important: Use steps 3 through 6 to set up each RTT entry for which you want to monitor VoIP performance on the network (between a source and destination path). It is important to use a naming convention that helps you easily identify unique RTT entries for each network path between a source and destination device. The sla operation number and tag names will be used to identify report and monitor names.

3. Begin configuration for an IP SLA operation and enter the IP SLA configuration mode:
   Router(config)# ip sla [operation number]
   For example, enter:
   Router(config)# ip sla 200
4. Configure the operation as a jitter (codec) operation that will generate VoIP scores in addition to latency and jitter statistics from a defined source device to a defined destination device:
   Router(config-sla)# type jitter dest-ipaddr {hostname | ip-address} dest-port port-number codec codec-type tag text (The tag parameter name is important because it creates a user-specified identifier for an IP SLA operation. It is used to name the performance monitors and workspace views in WhatsUp Gold. Make sure that you use a tag name that you want to use as an identifier in WhatsUp Gold. )
   For example, enter:
   Router(config-sla)# type jitter dest-ipaddr 192.168.199.2
   Router(config-sla)# dest-port 16384
   Router(config-sla)# codec g711alaw
   Router(config-sla)# tag Atlanta to Lexington
   - or enter commands on one line -
   Router(config-sla)# type jitter dest-ipaddr 192.168.199.2 dest-port 16384 codec g711alaw tag Atlanta to Lexington
5. Exit the UDP jitter configuration mode and return to the global configuration mode, enter:
   Router(config)# exit
6. Configure the scheduling parameters for an individual IP SLAs operation:
   Router(config-sla)# ip sla schedule operation-number [life {forever | seconds}] [start-time {hh:mm[:ss] [month day | day month] | pending | now | after hh:mm:ss] [ageout seconds] [recurring]
   For example:
   Router(config-sla)# ip sla schedule 200 life forever start-time now

   Tip: On most devices you can enter the Ctrl-Z key combination at any time to interrupt the output and return to privileged EXEC mode. For example, you can enter the show running-config | begin hostname command to display the running configuration file at the line containing the hostname setting, then press Ctrl-Z at the end of the information in which you are interested.

7. Repeat steps 3 through 6 to set up each RTT entry for which you want to monitor VoIP performance on the network.