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Port Mirroring

5-30 Port Configuration

Mode

Switchcommand,read‐write.

Example

Thisexampleclearsthebroadcastthresholdlimitto14881ppsforports1through5:

C2(su)->clear port broadcast ge.1.1-5 threshold

Port Mirroring

TheSecureStackC2deviceallowsyoutomirror(orredirect)thetrafficbeingswitchedonaport

forthepurposesofnetworktrafficanalysisandconnectionassurance.Whenportmirroringis

enabled,oneportbecomesamonitorportforanotherportwithinthedevice.

Mirroring Features

TheSecureStackC2devicesupportsthefollowingmirroringfeatures:

• Mirroringcanbeconfiguredinamany‐to‐oneconfigurationsothatonetarget(destination)

portcanmonitortrafficonupto8sourceports.Onlyonemirrordestinationportcanbe

configuredperstack,ifapplicable.

•Bothtransmitandreceivetrafficwill

bemirrored.

•Amirroringsessionwhichisconfiguredtobeactive(enabled)willbeoperationallyactive

onlyifbothadestinat ionportandatleastonesourceporthavebeenconfigured.

•Adestinationportwillonlyactasamirroringportwhenthesessionisoperationallyactive.If

themirroringsession

isnotoperationallyactive,thenthedestinationportwillactasanormal

portandparticipateinallnormaloperationwithrespecttotransmittingtrafficand

participatinginprotocols.

Purpose

Toreviewandconfigureportmirroringonthedevice.

Commands

show port mirroring

Usethiscommandtodisplaythesourceandtargetportsformirroring,andwhethermirroringis

currentlyenabledordisabledforthoseports.

Caution: Port mirroring configuration should be performed only by personnel who are

knowledgeable about the effects of port mirroring and its impact on network operation.

For information about... Refer to page...

show port mirroring 5-30

set port mirroring 5-31

clear port mirroring 5-32

Enterasys SecureStack C2 User Manual

Questions and Answers: