The nd snooping check dad-ns retransmit-rate rate command configures the maximum retransmission rate of DAD NS packets.
The undo nd snooping check dad-ns retransmit-rate rate command restores the default retransmission rate of DAD NS packets.
By default, the maximum retransmission rate of DAD NS packets is 50 packets per second.
nd snooping check dad-ns retransmit-rate rate rate-value
undo nd snooping check dad-ns retransmit-rate rate
Parameter |
Description |
Value |
|---|---|---|
rate-value |
Specifies the maximum retransmission rate of DAD NS packets. |
The value is an integer that ranges from 1 to 100, in packet per second. The default value is 50. |
System view, VLAN view, Eth-Trunk view, Ethernet interface view, GE interface view, XGE interface view, 25GE interface view, MultiGE interface view, 40GE interface view, 100GE interface view, port group view
Usage Scenario
When the ND snooping binding entry is not established, an untrusted interface on a device forwards a DAD NS packet after receiving it. After the nd snooping check dad-ns retransmit-rate enable command is configured, the device checks the retransmission rate of DAD NS packets. You can run the nd snooping check dad-ns retransmit-rate rate rate-value command to configure the retransmission rate of DAD NS packets. If the number of DAD NS packets retransmitted per second exceeds the value of the rate-value parameter, the device directly discards excessive packets instead of forwarding these packets.
Prerequisites
ND snooping has been enabled using the nd snooping enable command in the system view.