Configuring ibgp between an mce and a vpn site – H3C Technologies H3C S6800 Series Switches User Manual

Page 37

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Step

Command

Remarks

2.

Enter BGP view.

bgp as-number N/A

3.

Configure the MCE as an
EBGP peer.

peer { group-name |
ipv6-address } as-number

as-number

By default, no BGP peer is
configured.

4.

Enter BGP IPv6 unicast
address family view.

address-family ipv6 [ unicast ]

N/A

5.

Enable BGP to exchange

IPv6 unicast routes with the
specified peer.

peer { group-name | ip-address }
enable

By default, BGP does not
exchange IPv6 unicast routes

with any peer.

6.

Redistribute the IGP routes
of the VPN.

import-route protocol
[ process-id [ allow-direct | med

med-value | route-policy
route-policy-name
] * ]

By default, no routes are
redistributed into BGP.
A VPN site must advertise IPv6

VPN network addresses it can
reach to the connected MCE.

Configuring IBGP between an MCE and a VPN site

To use IBGP between an MCE and a VPN site, you must configure a BGP peer for each IPv6 VPN

instance on the MCE, and redistribute the IGP routes of each VPN instance on the VPN site.

1.

Configure the MCE:

Step

Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter BGP view.

bgp as-number N/A

3.

Enter BGP-VPN instance
view.

ip vpn-instance
vpn-instance-name

N/A

4.

Configure an IBGP peer.

peer { group-name |
ipv6-address
} as-number

as-number

N/A

5.

Enter BGP-VPN IPv6 unicast
address family view.

address-family ipv6 [ unicast ]

N/A

6.

Enable BGP to exchange
IPv6 unicast routes with the

peer.

peer { group-name |
ipv6-address
} enable

By default, BGP does not
exchange IPv6 unicast routes

with any peer.

7.

(Optional.) Configure the
system to be the RR, and

specify the peer as the client
of the RR.

peer { group-name |
ipv6-address } reflect-client

By default, no RR or RR client is
configured.
After you configure a VPN site as

an IBGP peer, the MCE does not

advertise the BGP routes learned
from the VPN site to other IBGP

peers, including VPNv6 peers.

The MCE advertises routes
learned from a VPN site only

when you configure the VPN site

as a client of the RR (the MCE).

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