beautypg.com

Configuring a bgp pw, Ipv6 mpls l3vpn packet forwarding – H3C Technologies H3C S12500-X Series Switches User Manual

Page 260

background image

249

Step Command

Remarks

4.

Configure an LDP PW and

enter cross-connect PW view.

peer ip-address pw-id pw-id
[ pw-class class-name |
tunnel-policy tunnel-policy-name ] *

By default, no LDP PW is
configured.
If the specified peer PE is not

directly connected, the local PE
automatically sends a targeted

hello to create an LDP session to the

peer PE and then exchanges the
PW ID FEC and PW label mapping

with the peer.

Configuring a BGP PW

To configure a BGP PW, perform the following configurations on PEs:

Configure BGP to advertise L2VPN label block information.

Create a BGP PW.

Configuring BGP to advertise L2VPN label block information

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enable BGP and enter BGP
view.

bgp as-number

By default, BGP is not
enabled.

3.

Configure the remote PE as a
BGP peer.

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

By default, no BGP peer is
configured.

4.

Create and enter BGP L2VPN
address family view.

address-family l2vpn

By default, BGP L2VPN
address family view is not

created.

5.

Enable BGP to exchange L2VPN
information with the specified

peer or peer group.

peer { group-name | ip-address }

enable

By default, BGP cannot
exchange L2VPN information

with any peer or peer group.

6.

Enable BGP to exchange label

block information with the
specified peer or peer group.

peer { group-name | ip-address }
signaling [ non-standard ]

By default, BGP can
exchange label block

information with a BGP
L2VPN peer or peer group by

using RFC 4761

MP_REACH_NLRI.

7.

(Optional.) Permit the local AS
number to appear in routes from

the specified peer or peer group
and specify the appearance

times.

peer { group-name | ip-address }
allow-as-loop [ number ]

By default, the local AS
number is not allowed in
routes from a peer or peer

group.

8.

(Optional.) Enable route

target-based filtering of
incoming BGP L2VPN

information.

policy vpn-target

By default, route target-based
filtering of incoming BGP

L2VPN information is

enabled.