Configuring Whitelist Session-CAR for BGP
You can configure whitelist session-CAR for BGP to isolate bandwidth resources by session for BGP messages. This configuration prevents bandwidth preemption among BGP sessions in the case of a traffic burst.
Context
The function of whitelist session-CAR for BGP sets an independent CAR channel for each BGP session to ensure that the bandwidth of each BGP session is not preempted by other traffic (including traffic from other sessions of the same protocol and traffic from other protocols). When BGP messages suffer a traffic burst, you can adjust the default parameters of whitelist session-CAR for BGP if they do not meet service requirements. This ensures that BGP messages can be sent properly.
In normal cases, you are advised to enable whitelist session-CAR for BGP. If this function becomes abnormal or adversely affects other services, you can run the whitelist session-car bgp disable command to disable this function.
Procedure
- Run system-view
The system view is displayed.
- Run whitelist session-car bgp { cir cir-value | cbs cbs-value | pir pir-value | pbs pbs-value } *
Parameters of whitelist session-CAR for BGP are configured.
In normal cases, you are advised to use the default values of these parameters.
- Run commit
The configuration is committed.
Verifying the Configuration
After configuring whitelist session-CAR for BGP, verify the configuration.
- Run the display cpu-defend whitelist session-car bgp statistics slot slot-id command to check statistics about whitelist session-CAR for BGP on a specified interface board.
To check the statistics within a specific period of time, run the reset cpu-defend whitelist session-car bgp statistics slot slot-id command to clear the existing statistics about whitelist session-CAR for BGP on the specified interface board; after a certain period of time, run the display cpu-defend whitelist session-car bgp statistics slot slot-id command.
The statistics about whitelist session-CAR for BGP on a specified interface board cannot be restored after being cleared. Therefore, exercise caution when you run the reset cpu-defend whitelist session-car bgp statistics slot slot-id command.