Filter
Top Products
BGP Set Commands
XSR CLI Reference Guide 6-115
Syntax of the “no” Form
ThenoformofthiscommandremovestheASpathvalue:
no set as-path
Mode
Route‐mapconfiguration:XSR(config-route-map)#
Example
Thefollowingexampleconfigurestheas‐pathvalueinthecontextofconfiguringaroutemapand
the
matchcommand.Thematch as-pathcommandreferencesAS‐pathaccesslist37which
identifiestheBGProutingupdatestowhichthe
set as-pathcommandwillapply.
Inthiscase,matchclauseʺ.*ʺwillmatchallroutes.Relevantupdateswillhaveoneinstanceofthe
ASnumber100prependedintotheirASpathvariable.AssumingthatalloftheBGProute
selectioncriteriaremainthesame,therouteswiththefewestASnumbersinthe
ASpathvariable
willbechosenasthebestroutestotheidentifieddestinations.IfmorethanoneASpathistobe
prepended,thenthestringshouldbesurroundedbyquotes.
XSR(config)#ip as-path access-list 37 permit ".*"
XSR(config)#route-map 1 permit 1
XSR(config-route-map)#match as-path 37
XSR(config-route-map)#set as-path prepend 100
XSR(config-route-map)#set as-path prepend "100 100"
set community
ThiscommandspecifiesthecommunityattributeinaBGProutingupdatemessage.Besurethata
matchclausehasbeenspecified.
Acommunityisagroupofdestinationswhichsharethecommunityattribute.ABGPspeakercan
usethecommunityattributetocontrolwhichroutingdataitacceptsordistributesto
neighbors.A
BGPspeakercanappendthecommunityattributetoroutesitreceivesthatdonotalreadyhavethe
attribute.
Syntax
set community {community-number | aa:nn | additive | internet | local-AS | no-
advertise | no-export | none}
as-path-string
TheASpathlistwhichwillbeprependedtotheASpathattributeofthe
routethatmatchestheroutemap.Theas‐pathlistrepresentsoneormore
validASnumbersthatarespecifiedasanintegerbetween1and65535.
community-number
Thecommunitynumber.Range:1to4,294,967,295.
aa:nn
Communitynumberintheformataa:nnwhereaa identifiestheASandnn
thecommunitywithintheAS.Range:1to65,535.
additive
Addsthecommunitytoexistingcommunities.
internet
Established Internetcommunity.