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DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-50
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
remote-as asn
Configure BGP neighbor
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
route-reflector-client
Configure CSC-CE as the route reflector client
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
update-source interface-name
Configure BGP source address
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
next-hop-self
For ASBR, when configuring the router to
advertise BGP routes, change the next hop to
the router itself.
Configure an IBGP session between CSC-CEs of different sites
A fully meshed IBGP session is established between CSC-CEs of different sites to exchange
external routes of different sites.
Command Function
DES-7200(config)# router bgp asn
Configure BGP
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
remote-as asn
Configure BGP neighbor
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
update-source interface-name
Configure BGP source address
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
route-reflector-client
(Optional) Configure the CSC-CE of peer site
as the router reflector client.
DES-7200(config-router)# neighbor
{peer-address | peer-group-name}
next-hop-self
When CSC-CE establishes a session with the
CSC-CE of peer site, the next hop must be
changed to itself.
Configure route map filtering
When BGP is used to exchange internal routes, since CSC-CE is responsible for both external
route propagation and internal route propagation, we must guarantee that only the EBGP
session between CSC-CE and CSC-PE can propagate internal routes, and the IBGP session