Chapter 15
| Congestion Control Commands
Automatic Traffic Control Commands
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auto-traffic-control This command enables automatic traffic control for broadcast or multicast storms.
Use the no form to disable this feature.
Syntax
[no] auto-traffic-control {broadcast | multicast}
broadcast - Specifies automatic storm control for broadcast traffic.
multicast - Specifies automatic storm control for multicast traffic.
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet)
Command Usage
◆ Automatic storm control can be enabled for either broadcast or multicast
traffic. It cannot be enabled for both of these traffic types at the same time.
◆ Automatic storm control is a software level control function. Traffic storms can
also be controlled at the hardware level using the switchport packet-rate
command. However, only one of these control types can be applied to a port.
Enabling automatic storm control on a port will disable hardware-level storm
control on that port.
Example
This example enables automatic storm control for broadcast traffic on port 1.
Console(config)#interface ethernet 1/1
Console(config-if)#auto-traffic-control broadcast
Console(config-if)#
auto-traffic-control
action
This command sets the control action to limit ingress traffic or shut down the
offending port. Use the no form to restore the default setting.
Syntax
auto-traffic-control {broadcast | multicast} action {rate-control | shutdown}
no auto-traffic-control {broadcast | multicast} action
broadcast - Specifies automatic storm control for broadcast traffic.
multicast - Specifies automatic storm control for multicast traffic.
rate-control
- If a control response is triggered, the rate of ingress traffic is
limited based on the threshold configured by the auto-traffic-control
alarm-clear-threshold command.
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