ipv6 dhcp snooping rate-limit
Use ipv6 dhcp snooping rate-limit to enable DHCPv6 snooping packet rate limit on an interface and set the limit value.
Use undo ipv6 dhcp snooping rate-limit to disable DHCPv6 snooping packet rate limit.
Syntax
ipv6 dhcp snooping rate-limit rate
undo ipv6 dhcp snooping rate-limit
Default
The DHCPv6 snooping packet rate limit is disabled on an interface.
Views
Layer 2 Ethernet interface/Layer 2 aggregate interface view
S-channel interface/S-channel aggregate interface view
Predefined user roles
network-admin
mdc-admin
Parameters
rate: Specifies the maximum rate in Kbps. The value range is 64 to 512.
Usage guidelines
This command takes effect only when DHCPv6 snooping is enabled.
The DHCPv6 packet rate limit feature enables the interface to discard DHCPv6 packets that exceed the maximum rate.
The rate configured on a Layer 2 aggregate interface applies to all members of the aggregate interface. If a member interface leaves the aggregation group, it uses the rate configured in its Ethernet interface view.
The chip-supported maximum rate is an integer multiple of eight. If you set the maximum rate to 67, the value 64 or 72 takes effect.
Examples
# Configure to receive DHCPv6 packets at a maximum rate of 64 Kbps.
<Sysname> system-view [Sysname] interface [Sysname-] ipv6 dhcp snooping rate-limit 64