Allied Telesis AT-8100 Series - Manual (Page 1792)

Chapter 102: QoS Storm Control Protection
1792
Setting the Storm Control Action
To determine which action the switch takes when the configured limits are
reached, use the STORM-ACTION command. There are three possible
actions:
 Removes a port from a VLAN
 Disables a port in software
 Shuts down a port on the switch
All three options disable a port in some way. This down state is temporary,
and the length of time it lasts is determined by the value of the STORM-
DOWNTIME command. See “Setting Storm Control Down Time” on
page 1795.
When a port is removed from a VLAN, the port stops receiving traffic from
that VLAN. However, a port may be assigned to two VLANs. In this case,
the port could still receive traffic from the second VLAN.
The following storm control action examples are provided:
 “Disabling a VLAN” on page 1792
 “Disabling a Port” on page 1793
 “Shutting Down a Port” on page 1794
For more information about this command, see “STORM-ACTION” on
page 1802.
Disabling a
VLAN
The following example sets the storm control action to remove port 7 from
a VLAN with a VID of 2 when a packet storm occurs. A policy map named
“pmap3” is assigned to port 7. Also, pmap3 contains a class map named
“cmap2” which is configured to match traffic with a VLAN ID of 2.
Table 244. Setting Storm Control Action: Disabling a VLAN
Command Description
awplus> enable Enters the Privileged Executive mode
from the User Executive mode.
awplus# configure terminal Enters the Global Configuration mode.
awplus(config)# mls qos enable Activates the QoS feature on the switch.
awplus(config)# class-map
cmap2 Creates a class map called “cmap2.”