ZXR10T600/T1200UserManual(IPv6Volume)
TocongureBGP4+aggregationadvertisement,performthefol-
lowingsteps.
St-
ep
CommandFunction
1
ZXR10(config)#routerbgp<as-number>ThisentersBGProute
congurationmode.
2
ZXR10(config-router)#aggregate-address
<ip-addr>/<mask>[as-set][summary-only]
Thiscreatesanaggregation
policyintheBGProuting
table.
3
ZXR10(config-router)#bgpaggregate-nexthop-checkThisimplementsroute
aggregationonlywhenthe
nexthopstrictlymatcheswith
MED.
Result:BGP4+aggregationadvertisementhasbeencongured.
ConfiguringEBGPMultihop
TocongureEBGPmultihop,performthefollowingsteps.
St-
ep
CommandFunction
1
ZXR10(config)#routerbgp<as-number>ThisentersBGProute
congurationmode.
2
ZXR10(config-router)#neighbor[<ipv4-address>|<i
pv6-address>|<peer-group-name>]ebgp-multihop
[ttl<value>]
Thiscongurestoestablish
EBGPneighborhoodover
non-directconnectnetworks.
TherangeofTTLis1–255.
Thedefaultis8.
Result:EBGPmultihophasbeencongured.
ExampleUsually,EBGPneighborhoodisestablishedonthedirect-connect
interfacesoftworouters.ToestablishEBGPneighborhoodon
non-directconnectinterfaces,thecommandneighborebgp-m
ultihopshallbeusedtoperformEBGPmultihopconguration,as
wellasproperIGPorstaticroutecongurationtoenableintercom-
municationbetweennon-directconnectneighbors.T
ThisexampledescribeshowtocongureEBGPmultihop.
AsshowninFigure6,routerR1inAS100needstoestablish
neighborhoodwithanon-directlyconnectedinterfacewhoseidis
180.225.11.1onR2inAS300.
56CondentialandProprietaryInformationofZTECORPORATION