Configuring the maximum ICMPv6 error packets sent in an interval
If too many ICMPv6 error packets are sent within a short time in a network, network congestion may occur. To avoid network congestion, you can control the maximum number of ICMPv6 error packets sent within a specific time by adopting the token bucket algorithm.
You can set the capacity of a token bucket to determine the number of tokens in the bucket. In addition, you can set the update interval of the token bucket, the interval for restoring the configured capacity. One token allows one ICMPv6 error packet to be sent. Each time an ICMPv6 error packet is sent, the number of tokens in a token bucket decreases by one. If the number of ICMPv6 error packets successively sent exceeds the capacity of the token bucket, the additional ICMPv6 error packets cannot be sent out until the capacity of the token bucket is restored.
To configure the capacity and update interval of the token bucket:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Configure the capacity and update interval of the token bucket. | ipv6 icmp-error { bucket bucket-size | ratelimit interval } * | Optional. By default, the capacity of a token bucket is 10 and the update interval is 100 milliseconds. A maximum of 10 ICMPv6 error packets can be sent within 100 milliseconds. The update interval "0" indicates that the number of ICMPv6 error packets sent is not restricted. |