12
Configuring RIP between an MCE and a PE
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create a RIP process
for a VPN instance and
enter RIP view.
rip
[
process-id
]
vpn-instance
vpn-instance-name
N/A
3.
Enable RIP on the
interface attached to
the specified network.
network network-address
By default, RIP is disabled on
an interface.
4.
Redistribute the VPN
routes.
import-route protocol
[
process-id
|
all-processes
|
allow-ibgp
] [
cost
cost
|
tag
tag
] *
By default, no routes are
redistributed into RIP.
5.
(Optional.) Configure
the default cost for
redistributed routes.
default cost value
The default cost is 0.
Configuring OSPF between an MCE and a PE
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create an OSPF process for
a VPN instance and enter
OSPF view.
ospf
[
process-id
|
router-id
router-id
|
vpn-instance
vpn-instance-name
] *
N/A
3.
Disable routing loop
detection.
vpn-instance-capability simple
By default, routing loop detection
is enabled.
You must disable routing loop
detection for an OSPF VRF
process on the MCE. Otherwise,
the MCE does not receive OSPF
routes from the PE.
4.
(Optional.) Configure the
OSPF domain ID.
domain-id
domain-id
[
secondary
]
The default domain ID is 0.
5.
(Optional.) Configure the
type codes of OSPF
extended community
attributes.
ext-community-type
{
domain-id type-code1
|
router-id type-code2
|
route-type
type-code3
}
The defaults are as follows:
•
0x0005 for Domain ID.
•
0x0107 for Router ID.
•
0x0306 for Route Type.
6.
(Optional.) Configure the
external route tag for
imported VPN routes.
route-tag tag-value
By default, no route tag is
configured.
In some networks, a VPN might
be connected to multiple MCEs.
When one MCE advertises the
routes learned from BGP to the
VPN, the other MCEs might learn
the routes, resulting in routing
loops. To avoid such routing
loops, you can configure route
tags for VPN instances on an
MCE. As a best practice,
configure the same route tag for
the same VPN on the MCEs.
7.
Redistribute the VPN routes.
import-route
protocol
[
process-id
|
all-processes
|
allow-ibgp
] [
cost
cost
|
By default, no routes are
redistributed into OSPF.
