H3C S9500 Series Operation Manual page 25

Operation Manual – MPLS L3VPN
H3C S9500 Series Routing Switches
In general, BGP uses the best local address in TCP connection. To keep TCP
connection available even when the interface involved fails, you can perform the
following configuration to permit BGP session over any interface through which TCP
connection with the peer can be set up. The command here is usually executed
together with the Loopback interface.
Perform the following configuration in VPNv4 sub-address family view to permit BGP
session over any operable TCP interface
Permit BGP session over any operable
TCP interface
Use the best local address for TCP
connection
BGP can use a specified interface to establish BGP adjacency with a peer. In MPLS
VPN, the interface must be a loopback interface.
2) Configure MP-IBGP
Step 1: Enter protocol address family view.
Perform the following configuration in BGP view to configure VPNv4 address family:
Enter VPNv4 sub-address family view
Delete VPNv4 sub-address family view
configuration
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.
Perform the following operation to enable/disable IBGP peer group:
Enable a peer group
Disable a specific peer group
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 to configure the
local address as the next hop in route advertisement:
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Chapter 1 MPLS L3VPN Configuration
Use the command...
peer { peer-address | group-name }
connect-interface { interface-type
interface-number }
undo peer { peer-address |
group-name } connect-interface
Use the command...
ipv4-family vpnv4 [ unicast ]
undo ipv4-family vpnv4 [ unicast ]
Use the command...
peer group-name enable
undo peer group-name enable