Configuring a bgp pw – H3C Technologies H3C S6800 Series Switches User Manual

Page 343

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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.
After an LDP PW is created, the
local PE automatically sends a

targeted hello to create an LDP

session to the peer PE. Then, the PE
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 MPLS L2VPN label block information.

Create a BGP PW.

Configuring BGP to advertise MPLS 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
[ mask-length ] } as-number

as-number

By default, no BGP peer is
configured.

4.

Create the BGP L2VPN address

family and enter BGP L2VPN
address family view.

address-family l2vpn

By default, the BGP L2VPN
address family is not created.

5.

Enable BGP to exchange BGP
L2VPN information with the

specified peer or peer group.

peer { group-name | ip-address
[ mask-length ] } enable

By default, BGP cannot
exchange BGP 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
[ mask-length ] } 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
[ mask-length ] } 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.

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