The whitelist session-car e-trunk-ipv4 command configures bandwidth parameters for CAR for IPv4 E-Trunk sessions.
The undo whitelist session-car e-trunk-ipv4 command restores the default bandwidth parameter values for CAR for IPv4 E-Trunk sessions.
The default CIR, CBS, PIR, and PBS of CAR for VRRP sessions are 128 kbit/s, 25600bytes,1500 kbit/s, and 187500 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 is an integer that ranges from 0-1000000, in kbit/s. The default value is 128. |
| cbs cbs-value |
Specifies a committed burst size (CBS) for instantaneously transmitted packets. |
The value is an integer that ranges from 0-9000000, in bytes. The default value is 25600. |
| pir pir-value |
Specifies a peak information rate (PIR), that is, the highest rate at which packets can be transmitted or forwarded. |
The value is an integer that ranges from 0-1000000, in kbit/s. The default value is 1500. It is recommended that <i>pir-value</i> be greater than or equal to <i>cir-value</i>. |
| pbs pbs-value |
Specifies a peak burst size (PBS), that is, the peak burst traffic that can instantaneously pass through. |
The value is an integer that ranges from 0-9000000, in bytes. The default value is 187,500. It is recommended that <i>pbs-value</i> be greater than or equal to <i>cbs-value</i>. |
Usage Scenario
For an IPv4 network, when a large number of E-Trunk packets are sent to the CPU, you can run the whitelist session-car e-trunk-ipv4 command to adjust bandwidth parameters for CAR for E-Trunk sessions to ensure that E-Trunk packets can be properly sent to the CPU.
Precautions
In normal cases, adjusting the default bandwidth parameters for CAR for E-Trunk sessions is not recommended. Use the default values instead.