Configuring Broadcast Suppression
5-28 Port Configuration
Example
Thisexampleshowshowtoclearalllinkflapoptionsonportge.1.4.
C2(rw)->clear linkflap all ge.1.4
Configuring Broadcast Suppression
Purpose
Toreviewandsetthebroadcastsuppressionthresholdforoneormoreports.Thisfeaturelimits
thenumberofreceivedbroadcastframestheswitchwillacceptperport.Broadcastsuppression
thresholdsapplyonlytobroadcasttraffic—multicasttrafficisnotaffected.Bydefault,abroadcast
suppressionthresholdof14881packetspersecond
(pps)willbeused,regardlessofactualport
speed.BroadcastsuppressionprotectsagainstbroadcaststormsandARPsweeps.
Commands
show port broadcast
Usethiscommandtodisplayportbroadcastsuppressionthresholds.
Syntax
show port broadcast [port-string]
Parameters
Defaults
Ifport‐stringisnotspecified,broadcaststatusofallportswillbedisplayed.
Mode
Switchcommand,read‐only.
Example
Thisexampleshowshowtodisplaythebroadcastsuppressionthresholdsforports1through4:
C2(su)->show port broadcast ge.1.1-4
Port Total BC Threshold
Packets (pkts/s)
----------------------------------------
For information about... Refer to page...
show port broadcast 5-28
set port broadcast 5-29
clear port broadcast 5-29
port‐string (Optional)Selecttheportsforwhichtoshowbroadcastsuppression
thresholds.Foradetaileddescriptionofpossibleport‐stringvalues,refer
to“PortSt ringSyntaxUsedintheCLI”onpage5‐2.