Storm protection, Command changes – Allied Telesis RAPIER I User Manual

Page 126

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QoS Enhancements

Release Note

Software Version 2.8.1
C613-10477-00 REV B

To enable QoS counters, use the command:

set switch enhancedmode=qoscounters

To reset traffic class counters for a port group, use the command:

reset qos portgroup counters

trafficlass[={trafficclass-list|all}]

To display information about port groups, use the commands:

show qos portgroup

show qos portgroup counters

show qos port

Command Changes

The following table summarises the new and modified commands:

Storm protection

This Software Version includes an enhancement to Quality of Service (QoS)
that allows storm protection.

Storm protection uses QoS mechanisms to classify on traffic likely to cause a
packet storm (broadcast and multicast). With a per-port storm protection
mechanism, any traffic over the configured limit is discarded. However, with
QoS storm protection, several actions are possible when a storm is detected:

You can disable the port physically.

You can disable the port logically.

You can disable the port for a particular VLAN.

Enhanced mode must be enabled with the set switch enhancedmode
command in the Switching chapter before you can configure storm protection.
When a storm is detected on a port, a message is automatically recorded in the
log, and you can configure an SNMP trap to signal that a port has been
disabled. When a storm is detected on a trunk or port group, the entire trunk or
port group is disabled.

Command

Change

add qos portgroup port

New command

create qos policy

New command

delete qos portgroup port

New command

destroy qos portgroup

New command

reset qos portgroup counters

New command

set qos portgroup

New command

show qos portgroup

New command

show qos portgroup counters

New command

show qos policy

New Ports Assigned to parameter

New Port Groups assigned to parameter

show qos port

New Port Group parameter

New Trunk Group parameter

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