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DES-7200 Configuration Guide Chapter 6 BGP
Configuration
6-28
Command Function
DES-7200(config-router)# bgp
scan-rib disable
Enable the event trigger
mechanism. By default, the timing
scanning update mechanism is
used.
DES-7200(config-router)# bgp
scan-time scan-time
(Optional) Set the scanning interval.
scan-time: In the range 5 to 60
seconds, 60 seconds by default
You can also configure this command in IPv4/IPv6/VPNv4/VPNv6 address family
mode.
Use the no command to remove the configuration.
Caution
When you run the bgp scan-rib disable command to enable the event trigger
mechanism, the synchronization should be disabled and the BGP next hop
trigger mechanism should be enabled. Meanwhile, when the synchronization is
enabled or the BGP next hop trigger mechanism is disabled, the BGP updates
the routing table in timing scanning way.
6.19 Configuring BGP Nexthop Trigger Update Mechanism
The BGP next hop trigger update mechansim improves the converge of BGP
routes. It monitors the monitroing of the next hop of BGP routes to speed up
converge in stable network topology.
By default, the BGP next hop trigger update mechansim is enabled. After
establishing connections with neighbors, the BGP will automatically monitor the
next hop of the routes learned from neighbors. When the next hop changes, the
BGP will receive a notification to update the routing tble. This can reduce the time
to check the change of next hop for better converge of BGP routes.
To configure the BGP next hop trigger update mechanism, execute the following
operations in the BGP configuration mode:
Command Function
DES-7200(config-router)# no bgp
nexthop trigger enable
Disabled the BGP next hop trigger
update.
DES-7200(config-router)# bgp
nexthop trigger delay delay-time
(Optional) Set the delay of the BGP
next hop trigger update.
delay-time: In the range 0 to 100
seconds, 5 seconds by default
You can also configure this command in IPv4/IPv6/VPNv4/VPNv6 address family