Track event monitor policy configuration example
Network requirements
As shown in Figure 78, Device A has established BGP sessions with Device D and Device E. Traffic from Device D and Device E to the Internet is forwarded through Device A.
Configure a CLI-defined EAA monitor policy on Device A to disconnect the sessions with Device D and Device E when Ten-GigabitEthernet 1/0/1 connected to Device C is down. In this way, traffic from Device D and Device E to the Internet can be forwarded through Device B.
Figure 78: Network diagram
Configuration procedures
# Display BGP peer information for Device A.
<Sysname> display bgp peer ipv4 BGP local router ID: 1.1.1.1 Local AS number: 100 Total number of peers: 3 Peers in established state: 3 * - Dynamically created peer Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State 10.2.1.2 200 13 16 0 0 00:16:12 Established 10.3.1.2 300 13 16 0 0 00:10:34 Established 10.3.2.2 300 13 16 0 0 00:10:38 Established
# Create track entry 1 and associate it with the link state of Ten-GigabitEthernet 1/0/1.
<Sysname> system-view [Sysname] track 1 interface ten-gigabitethernet 1/0/1
# Configure a CLI-defined EAA monitor policy so that the system automatically disables session establishment with Device D and Device E when Ten-GigabitEthernet 1/0/1 is down.
Sysname] rtm cli-policy test [Sysname-rtm-test] event track 1 state negative [Sysname-rtm-test] action 0 cli system-view [Sysname-rtm-test] action 1 cli bgp 100 [Sysname-rtm-test] action 2 cli peer 10.3.1.2 ignore [Sysname-rtm-test] action 3 cli peer 10.3.2.2 ignore [Sysname-rtm-test] user-role network-admin [Sysname-rtm-test] commit [Sysname-rtm-test] quit
Verifying the configuration
# Shut down Ten-GigabitEthernet 1/0/1.
[Sysname] interface ten-gigabitethernet 1/0/1 [Sysname-Ten-GigabitEthernet1/0/1] shutdown
# Display BGP peer information.
<Sysname> display bgp peer ipv4 BGP local router ID: 1.1.1.1 Local AS number: 100 Total number of peers: 0 Peers in established state: 0 * - Dynamically created peer Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State
The command output shows that Device A does not have any BGP peers.