The whitelist session-car bgp command sets values for the BGP whitelist session CAR parameters.
The undo whitelist session-car bgp command restores the default values for the BGP whitelist session CAR parameters.
By default, the CIR, CBS, PIR, and PBS of BGP whitelist session CAR are 24 kbit/s, 15000 bytes, 48000 kbit/s, and 6000000 bytes, respectively.
| Parameter | Description | Value |
|---|---|---|
| cir cir-value |
Specifies a committed information rate (CIR), that is, the average rate at which packets can be transmitted or forwarded. |
The value ranges from 12 to 1200, in kbit/s. The default value is 24. |
| cbs cbs-value |
Specifies a committed burst size (CBS), which limits the maximum number of bytes available for a burst of packets in a short interval to remain within CIR. |
The value ranges from 15000 to 1500000, in bytes. The default value is 15000. |
| pir pir-value |
Specifies a peak information rate (PIR), that is, the peak rate at which packets can be transmitted or forwarded. |
The value ranges from 12000 to 60000, in kbit/s. The default value is 48000. |
| pbs pbs-value |
Specifies a peak burst size (PBS), which limits the maximum number of bytes available for a burst of packets in a short interval to remain within PIR. |
The value ranges from 1500000 to 7500000, in bytes. The default value is 6000000. |
Usage Scenario
If a device receives a large number of BGP messages, you can run the whitelist session-car bgp command to modify the bandwidth values as needed for the message channels between BGP sessions. This configuration ensures that BGP messages can be properly sent.
Precautions
pir-value must be greater than or equal to cir-value. If you attempt to set a pir-value value smaller than cir-value, the following error message will be displayed: "Error: The pir %d must be greater than or equal to the cir %d."
pbs-value must be greater than or equal to cbs-value. If you attempt to set a pbs-value value smaller than cbs-value, the following error message will be displayed: "Error: The pbs %d must be greater than or equal to the cbs %d."