cpu-defend host-car drop-packet cir

Function

The cpu-defend host-car drop-packet cir command sets a rate limit for sending packets that are discarded due to user-level rate limiting to the CPU.

The undo cpu-defend host-car drop-packet cir command restores the default rate limit.

By default, the CIR and CBS for sending packets that are discarded due to user-level rate limiting to the CPU are 64 kbit/s and 12032 bytes, respectively.

Only the S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-HI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Format

cpu-defend host-car drop-packet cir cir-value [ cbs cbs-value ]

undo cpu-defend host-car drop-packet cir

Parameters

Parameter	Description	Value
cir-value	Specifies the CIR value.	The value is an integer in the range from 64 to 4096, in kbit/s.
cbs cbs-value	Specifies the CBS value.	The value is an integer in the range from 10000 to 800000, in bytes.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After the undo cpu-defend host-car drop-packet monitor disable command is run to enable monitoring for packets discarded due to user-level rate limiting, the discarded packets are sent to the CPU. You can run the cpu-defend host-car drop-packet cir command to adjust the rate limit for sending these discarded packets to the CPU.

Prerequisites

Monitoring for packets discarded due to user-level rate limiting has been enabled using the undo cpu-defend host-car drop-packet monitor disable command.

Example

# Set the CIR and CBS for sending packets that are discarded due to user-level rate limiting to the CPU to 128 kbit/s and 16384 bytes, respectively.

<HUAWEI> system-view
[HUAWEI] cpu-defend host-car enable
[HUAWEI] undo cpu-defend host-car drop-packet monitor disable
[HUAWEI] cpu-defend host-car drop-packet cir 128 cbs 16384