Software Version 2.8.1

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The following table explains the basic concepts involved with storm protection.

Concept

Description

 

 

Window

The frequency at which traffic is measured to determine whether storm

 

protection should be activated.

 

 

Rate

The amount of traffic per second that must be exceeded before the switch

 

takes the configured action.

 

 

Action

What the switch does when it detects a storm on a port.

 

 

Timeout

The length of time the port remains disabled after a port has been disabled

 

due to a packet storm.

 

 

Command Changes

The following table summarises the modified commands:

Command

Change

 

 

create qos policy

New dtcstormstatus parameter

set qos policy

New dtcstormwindow parameter

 

 

New dtcstormrate parameter

 

New dtcstormaction parameter

 

New dtcstormtimeout parameter

 

 

show qos policy

Output for storm protection

 

 

create qos trafficclass

New stormstatus parameter

set qos trafficclass

New stormwindow parameter

 

 

New stormrate parameter

 

New stormaction parameter

 

New stormtimeout parameter

 

 

show qos trafficclass

Output for storm protection

 

 

Software Version 2.8.1 C613-10477-00 REV B

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Allied Telesis AT-8800, RAPIER I manual Set qos policy, Create qos trafficclass, Set qos trafficclass, Show qos trafficclass