Table 92: Atc Commands; Automatic Traffic Control Commands - Edge-Core ECS4120-28F Reference Manual

Chapter 15
| Congestion Control Commands

Automatic Traffic Control Commands

Automatic Traffic Control Commands
Command Usage
◆
When traffic exceeds the threshold specified for broadcast and multicast or
unknown unicast traffic, packets exceeding the threshold are dropped until the
rate falls back down beneath the threshold.
◆
Traffic storms can be controlled at the hardware level using this command or at
the software level using the
of these control types can be applied to a port. Enabling hardware-level storm
control on a port will disable automatic storm control on that port.
◆
The rate limits set by this command are also used by automatic storm control
when the control response is set to rate limiting by the
action command.
◆
Using both rate limiting and storm control on the same interface may lead to
unexpected results. It is therefore not advisable to use both of these commands
on the same interface.
Example
The following shows how to configure broadcast storm control at 600 kilobits per
second:
Console(config)#interface ethernet 1/5
Console(config-if)#switchport broadcast packet-rate 600
Console(config-if)#
Automatic Traffic Control (ATC) configures bounding thresholds for broadcast and
multicast storms which can be used to trigger configured rate limits or to shut
down a port.

Table 92: ATC Commands

Command Function
Threshold Commands
auto-traffic-control Sets the time at which to apply the control response
apply-timer after ingress traffic has exceeded the upper
threshold
auto-traffic-control Sets the time at which to release the control
release-timer response after ingress traffic has fallen beneath the
lower threshold
auto-traffic-control * Enables automatic traffic control for broadcast or
multicast storms
auto-traffic-control Sets the control action to limit ingress traffic or shut
action down the offending port
auto-traffic-control Sets the lower threshold for ingress traffic beneath
alarm-clear-threshold which a cleared storm control trap is sent
auto-traffic-control
– 460 –
command. However, only one
auto-traffic-control
Mode
GC
GC
IC (Port)
IC (Port)
IC (Port)