3com 8807 User Guide

BGP/MPLS VPN Configuration

549

2 Configure MP-IBGP

Step 1: Enter protocol address family view.

Perform the following configuration in BGP view.

Step 2: Activate the peer (group).

By default, BGP neighbor is active while MBGP neighbor is inactive. You must
enable MBGP neighbor in VPNv4 sub-address family view.

Step 3: Configure the local address as the next hop in route advertisement
(optional).

Since the default value is no configuration, you must show clearly to add in this
configuration command when configuring MBGP of PE-PE.

Perform the following configuration in VPNv4 sub-address family view.

Step 4: Transfer BGP update packet without AS number (optional)

Perform the following configuration in VPNv4 sub-address family view.

In the above-mentioned configuration steps, the public-as-only keyword is
required for configuring EBGP and alliance, but not for configuring IBGP.

Step 5: Advertise default route to the peer (group)

Table 547 Configure VPNv4 address family

Operation

Command

Enter VPNv4 sub-address family view

ipv4-family vpnv4 [ unicast ]

Delete VPNv4 sub-address family view
configuration

undo ipv4-family vpnv4 [ unicast ]

Table 548 Enable/disable IBGP peer group

Operation

Command

Enable a peer group

peer group-name enable

Disable a specific peer group

undo peer group-name enable

Table 549 Configure the local address as the next hop in route advertisement

Operation

Command

Configure the local address as the next hop in
route advertisement

peer { group-name } next-hop-local

Remove the configuration

undo peer { group-name } next-hop-local

Table 550 Transfer BGP update packet without AS number

Operation

Command

Transfer BGP update packet without AS
number

peer group-name public-as-only

Transfer BGP update packet with AS number undo peer group-name public-as-only