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

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Step Command

Remarks

5.

Redistribute remote site routes
advertised by the PE.

import-route protocol [ process-id
| all-processes | allow-ibgp ] [ cost
cost | nssa-only | route-policy

route-policy-name | tag tag | type

type ] *

By default, no routes are
redistributed into OSPFv3.

6.

Return to system view.

quit

N/A

7.

Enter interface view.

interface interface-type
interface-number

N/A

8.

Enable OSPFv3 on the

interface.

ospfv3 process-id area area-id
[ instance instance-id ]

By default, OSPFv3 is disabled on
an interface.

Configuring IPv6 IS-IS between an MCE and a VPN site

An IPv6 IS-IS process belongs to the public network or a single IPv6 VPN instance. If you create an IPv6

IS-IS process without binding it to an IPv6 VPN instance, the process belongs to the public network.
By configuring IPv6 IS-IS process-to-IPv6 VPN instance bindings on a MCE, you allow routes of different

IPv6 VPNs to be exchanged between the MCE and the sites through different IPv6 IS-IS processes. This

ensures the separation and security of IPv6 VPN routes. For more information about IPv6 IS-IS, see Layer

3—IP Routing Configuration Guide.
To configure IPv6 IS-IS between an MCE and a VPN site:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Create an IPv6 IS-IS process
for a VPN instance and enter

IS-IS view.

isis [ process-id ] vpn-instance
vpn-instance-name

Perform this configuration on the
MCE. On a VPN site, configure

common IPv6 IS-IS.

3.

Configure a network entity

title for the IS-IS process.

network-entity net

By default, no NET is configured.

4.

Enable IPv6 for the IPv6 IS-IS
process.

ipv6 enable

By default, IPv6 is disabled.

5.

(Optional.) Redistribute
remote site routes advertised

by the PE.

ipv6 import-route protocol
[ process-id ] [ allow-ibgp ] [ cost

cost | [ level-1 | level-1-2 |
level-2 ] | route-policy

route-policy-name | tag tag ] *

By default, no routes are
redistributed to IPv6 IS-IS.
If you do not specify the route level

in the command, redistributed
routes are added to the level-2

routing table.

6.

Return to system view.

quit

N/A

7.

Enter interface view.

interface interface-type
interface-number

N/A

8.

Enable the IPv6 IS-IS process
on the interface.

isis ipv6 enable [ process-id ]

By default, no IPv6 IS-IS process is
enabled.

Configuring EBGP between an MCE and a VPN site

To use EBGP between an MCE and IPv6 VPN sites, 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 IPv6 VPN sites. You

can also configure the filtering of received and advertised routes.