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Enterasys Networks XSR CLI Router User Manual

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BGP Configuration Commands

XSR CLI Reference Guide 6-107

Syntax of the “no” Form

Thenoformofthiscommandremovesthecommmunitylistnumber:

no community-list community-list-number

Mode

Globalconfiguration:XSR(config)#

Example

ThisexampleconfiguresIPcommunitylist88.Thecommunitynumbersspecifiedinthelistare

2000,3000,and4000inthefirst,second,andthirdinstanceofthecommand,respectively.Thislist

canbereferencedwithinthe

match community commandthatispartofaroutemapcontrolling

BGProutingbasedonthecommunityattribute.Thematchwillseekupdatesthatinclude

communitynumbers2000,3000,or4000.

XSR(config)#ip community-list 88 permit 2000

XSR(config)#ip community-list 88 permit 3000

XSR(config)#ip community-list 88 permit 4000

network

ThiscommandspecifiesthelistofnetworksfortheBGProutingprocess.Networkscanbe

learnedfromconnectedroutesorviadynamicrouting.TheBGPprocessmustbenotifiedaboutthe

networksitwillroutewhichconoccursviamanualinjectionofroutesintotheBGPprocesswith

the

networkcommand.RoutesoriginatedbyBGPviathenetworkcommandhavetheirorigin

codesettoIGP.

NetworknumbersthatareinjectedintoBGPbymeansofthe

networkcommandmustalready

existintheIProutingtableontherouterasstat ic,directly‐connected,ordynamically‐derived

routes.Ifnetworknumbersdonotalreadyexist,theywillnotbeplacedintotheBGPtable,even

thoughtheywillappearintherouter’sconfiguration.

Syntax

network network-number [mask network-mask]

community-number

Communitynumberasitwasdefinedforthisrouterviatheset

community

command.Validvaluesare:

• Range:1to4,294,967,200.

• aa:nn:ASnumber,Communitynumber.

• internet:theInternetcommunity.

• no‐export:thecommunityroutewillnotbeadvertisedtoanEBGPpeer.

• no‐advertise:theroutewillnotbeadvertisedtoanypeer.

network-number

NetworkthatBGPadvertises.

mask

Usedwhenanetwork‐maskisexplicitlyspecifiedforthenetwork‐

number.Withoutthenetwork‐maskbeingspecified,adefaultclassful

maskisassumed.

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