Example of tracking a group of devices

Last Updated : Jul 06, 2020 |

About this task





Procedure

  1. The first step is to configure several RTRs.

    In this case, RTR 5 tracks the device at IP address 10.0.0.1, and RTR 6 tracks the device at IP address 20.0.0.1. For example:

    Gxxx-001(config)# rtr 5
Gxxx-001(config-rtr 5)# type echo protocol ipIcmpEcho 10.0.0.1
Gxxx-001(config-rtr icmp 5)# wait-interval 2 seconds
Done!
Gxxx-001(config-rtr icmp 5)# fail-retries 3
Done!
Gxxx-001(config-rtr icmp 5)# success-retries 1
Done!
Gxxx-001(config-rtr icmp 5)# exit
Gxxx-001(config)# rtr-schedule 5 start-time now life forever
Gxxx-001(config)# rtr 6
Gxxx-001(config-rtr 6)# type tcpConnect dest-address 20.0.0.1 dest-port 80
Gxxx-001(config-rtr tcp 6)# frequency 500 milliseconds
Done!
Gxxx-001(config-rtr tcp 6)# dscp 34
Done!
Gxxx-001(config-rtr tcp 6)# next-hop interface fastethernet 10/2 mac-address 00:01:02:03:04:05
Done!
Gxxx-001(config)# rtr-schedule 6 start-time now life forever
Gxxx-001(config-rtr tcp 6)# exit
  2. The second step is to configure several object trackers.

    In this case, object tracker 1 tracks the state of RTR 5, and object tracker 2 tracks the state of RTR 6. For example:

    Gxxx-001(config)# track 1 rtr 5
Gxxx-001(config-track rtr 1)# description track rtr-5
Done!
Gxxx-001(config-track rtr 1)# exit
Gxxx-001(config)# track 2 rtr 6
Gxxx-001(config-track rtr 2)# description track rtr-6
Done!
Gxxx-001(config-track rtr 2)# exit
  3. The third step is to configure a track list object tracker which tracks the states of object trackers 1 and 2, and calculates its own state using a boolean or threshold calculation.

    In this case, a Boolean OR argument is used. This means that the track list is up if either object tracker 1 or object tracker 2 is up. For example:

    Gxxx-001(config)# track 10 list boolean or
Gxxx-001(config-track list 10)# description track list rtr-5 and rtr-6
Done!
Gxxx-001(config-track list 10)# object 1
Done!
Gxxx-001(config-track list 10)# object 2
Done!
Gxxx-001(config-track list 10)# exit