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DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-38
Setting Up an IBGP Session Between the RR and ASBR to Assign Labels to IPv4 Routes
Set up an MP-IBGP session between the ASBR and RR to receive routes from the RR to the
PEs in the local AS and send routes from the RR to the PEs in another AS. At the same time,
enable label exchanging of IPv4 routes for the session.
Enter the privilege mode and perform the following configuration procedure:
Command Function
DES-7200# config terminal
Enter the global configuration mode.
DES-7200(config)# router bgp
asn-number
Enable BGP and enter the BGP configuration
mode.
DES-7200(config-router)# neighbor
peer-address
remote-as asn-number
Set up the IBGP session.
DES-7200(config-router)# neighbor
peer-address
update-source interface-name
Use the address of the loopback address as the
source address to set up an IBGP session.
DES-7200(config-router)#
address-family ipv4
Enter the IPv4 address family.
DES-7200(config-router-af)#
neighbor peer-address activate
Enable IPv4 route exchange.
DES-7200(config-router-af)#
neighbor peer-address send-label
Enable label exchanging of IPv4 routes.
DES-7200(config-router)# show
running-config
View all configuration information.
Note
For the IBGP session between an RR and ASBR, you are generally not
required to set the ASBR as the client of the RR unless the ASBR also serves
as a PE.
# Set up an IBGP session between the RR and ASBR. The configuration on the RR (the
configuration on the ASBR is similar) is as follows:
DES-7200# configure terminal
DES-7200(config)# router bgp 1
DES-7200(config-router)# neighbor 10.10.10.2 remote-as 1
DES-7200(config-router)# neighbor 10.10.10.2 update-source loopback 0