Software Version 2.8.1

 

131

 

 

 

 

 

 

Parameter (cont.)

Description (cont.)

 

 

 

 

 

 

STORMRate

Storm protection is activated when this rate of traffic is exceeded.

 

 

 

Required when storm protection is enabled.

 

 

 

If the value of stormwindow is less than one second, the rate is

 

 

 

averaged over the last second.

 

 

 

Default: none

 

 

 

 

 

 

 

 

 

Rate

Bits per second from 1Kbps to 10Gbps, specified in

 

 

 

 

Kbps, Mbps or Gbps. If you do not specify a unit, it

 

 

 

 

uses Kbps. If you specify Mbps or Gbps, the rate may

 

 

 

 

contain a decimal fraction with up to 3 decimal

 

 

 

 

places, for example, 1.25 Mbps.

 

 

 

 

 

 

 

 

NONE

Storm protection is inactive.

 

 

 

 

 

 

STORMAction

Action QoS takes when a storm is detected on a port.

 

 

 

Default: portdisable

 

 

 

 

 

 

 

 

LINKDown

Operationally disables ports to which the traffic class

 

 

 

 

is attached.

 

 

 

 

 

 

 

 

POrtdisable

Administratively disables ports to which the traffic

 

 

 

 

class is attached.

 

 

 

 

 

 

 

 

VLANdisable

Administratively disables ports to which the traffic

 

 

 

 

class is attached for the VLAN on which the classifier

 

 

 

 

is matching.

 

 

 

 

 

 

STORMTimeout

Length of time the port remains disabled after a storm is detected.

 

 

 

Default: none

 

 

 

 

 

 

 

 

 

timeoutlength

Duration in seconds from 1 to 86400.

 

 

 

 

 

 

 

 

NONE

The port remains disabled until you enable it again

 

 

 

 

with the enable switch port command, or the

 

 

 

 

enable switch port vlan command.

 

 

 

 

 

 

Example The following command enables storm protection as follows:

creates QoS traffic class 1 with a description of stormprotection

enables storm protection on the traffic class

checks traffic every 200 milliseconds

if the rate exceeds 50kbps, then activates storm protection

when activated, storm protection operationally disables the port for 60 seconds

cre qos tr=1 desc=stormprotection storms=ena stormw=200 stormr=50kbps storma=linkd stormt=60

Software Version 2.8.1 C613-10477-00 REV B

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Allied Telesis AT-8700XL, RAPIER I, X900-48FE STORMRate, Is matching STORMTimeout, With the enable switch port command, or