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Binding IS-IS processes to VPN instances can isolate routes of different VPNs. For more information
about IS-IS, see Layer 3—IP Routing Configuration Guide.
To configure IS-IS between an MCE and a VPN site:
1. Enter system view.
N/A
2. Create an IS-IS process for a
IS-IS view.
isis
[ process-id ]
vpn-instance
vpn-instance-name
Perform this configuration on the
MCE. On a VPN site, configure a
common IS-IS process.
3.
Configure a network entity
title.
network-entity
net
By default, no NET is configured.
4. Redistribute
routes advertised by the PE
into IS-IS.
import-route
protocol
[ process-id |
all-processes
|
allow-ibgp
] [
allow-direct
|
cost
cost |
cost-type
{
external
|
internal
} | [
level-1
|
level-1-2
|
level-2
] |
route-policy
route-policy-name |
tag
tag ] *
By default, IS-IS
redistribute routes from any other
routing protocol.
If you do not specify the route
level in the command, the
command redistributes routes to
the level-
default.
5. Return to system view.
N/A
6. Enter interface view.
interface
interface-type
interface-number
N/A
7. Enable the IS-IS process on
the interface.
isis enable
[ process-id ]
By default, IS-IS is disabled.
Configuring EBGP between an MCE and a VPN site
To run EBGP between an MCE and a VPN site, you must configure a BGP peer for each VPN
instance on the MCE, and redistribute the IGP routes of each VPN instance on the VPN site.
You can configure filtering policies to filter received routes and advertised routes.
1. Configure the MCE:
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 EBGP peer.
peer
{ group-name | ip-address
[ mask-length ] }
as-number
as-number
By
configured.
5. Enter BGP-VPN IPv4
unicast address family
view.
address-family ipv4
[
unicast
]
N/A
6. E
IPv4 unicast routes with the
peer.
peer
{ group-name | ip-address
[ mask-length ] }
enable
exchange IPv4 unicast routes
with any peer.
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