CLI Guide

Layer 2 Switching Commands 407
Example
The following example disables the link debounce timer for interface gi1/0/1.
switch# conf t
console(config)#interface gi1/0/1
console(config-if-Gi1/0/1)#no link debounce time
The following example sets the link debounce timer for interface gi1/0/1 to
500 ms.
switch# conf t
console(config)#interface gi1/0/1
console(config-if-Gi1/0/1)#link debounce time 500
rate-limit cpu
Use the rate-limit cpu command to reduce the amount of unknown
unicast/multicast packets forwarded to the CPU. Use the no form of the
command to set the rate limit to the default value.
Syntax
rate-limit cpu direction input pps pps_value
no rate-limit cpu direction input pps
• pps_value—The packets per second. The range is 5-1024 packets per
second.
Default Configuration
The default ingress rate limit is 512 packets per second.
Command Modes
Global Configuration mode
User Guidelines
Unknown unicast and multicast packets are copied to the CPU on the lowest
priority QoS queue. Unknown packets are those that do not have hardware
forwarding entries. Known unicast/multicast packets are hardware forwarded
and are not queued to the CPU. Control plane packets (e.g. spanning tree
BPDUs) are copied or forwarded to the CPU on higher priority queues.