Chapter8BGP4+Conguration
Headers:Dest:Destination,Gw:Gateway,Pri:Priority;
Codes:K:kernel,I1:isis-l1,SFN:sf-nat64,R:ripng,AF:aftr,B:bgp,
D:direct,I2:isis-l2,SLN:sl-nat64,O:ospfv3,D6:dhcp,P:ppp,
S:static,N:nd,V:vrrp,A:address,M:multicast,UI:user-ipaddr;
DestOwnerMetric
InterfacePriGw
2000:0:0:1::/64B0
gei-2/120fe80:12::1
2000:0:0:1::/64B0
gei-2/220fe80:16::1
8.3.3Example:ConfiguringBGP4+
CongurationDescription
ThisexampledescribeshowtocongureBGP4+.ItinvolvesthepracticaluseofBGP4+,
suchasIBGP/EBGPneighborestablishment,routingpolicy,routeredistribution,and
MessageDigest5Algorithm(MD5)encryption.
AsshowninFigure8-3,EBGPneighborsareestablishedbetweenR4andR1,IBGP
neighborsareestablishedbetweenR1andR2,andmulti-hopEBGPneighborsare
establishedbetweenR2andR5.R2andR5establishanEBGPmulti-hoprelation
throughR3.BeforeBGPiscongured,itisnecessarytoensurethattheaddressesused
forneighborestablishmentbetweenthetworouterscaninterworkwitheachother(via
IGP;IGPcongurationisomittedinthisexample).
Figure8-3BGP4+GeneralCongurationExample
CongurationFlow
1.EnableIPv6oneachinterfaceandcongureIPv6addresses.
2.CreateaBGP4+instance.
3.CongureBGP4+neighborsandroutingpolicies.
4.Conguretheredistributioncommandandenableneighborstoadvertiseroutes.
8-7
SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential