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Configuring OSPFv3 between a PE and a CE
An OSPFv3 process belongs to the public network or a single VPN instance. If you create an OSPF
process without binding it to a VPN instance, the process belongs to the public network.
For more information about OSPFv3, see Layer 3—IP Routing Configuration Guide.
To configure OSPFv3 between a PE and a CE:
Step
1.
Enter system view.
2.
Create an OSPFv3 process
for a VPN instance and enter
OSPFv3 view.
3.
Set the router ID.
4.
(Optional.) Configure an
OSPFv3 domain ID.
5.
(Optional.) Configure the
type code of an OSPFv3
extended community
attribute.
6.
(Optional.) Configure an
external route tag for
redistributed VPN routes.
Command
system-view
ospfv3 [ process-id ]
vpn-instance vpn-instance-name
router-id router-id
domain-id { domain-id
[ secondary ] | null }
ext-community-type
{ domain-id type-code1 |
route-type type-code2 | router-id
type-code3 }
route-tag tag-value
336
Remarks
N/A
Perform this configuration on the
PE.
The maximum number of OSPFv3
processes for a VPN instance
depends on the device memory.
Deleting a VPN instance also
deletes all related OSPFv3
processes.
N/A
The default domain ID is 0.
Perform this configuration on the
PE.
When you redistribute OSPFv3
routes into BGP, BGP adds the
primary domain ID to the
redistributed BGP VPNv6 routes
as a BGP extended community
attribute.
You can configure the same
domain ID for different OSPFv3
processes.
All OSPF processes of the same
VPN must be configured with the
same OSPF domain ID to ensure
correct route advertisement.
By default, the type codes for
domain ID, route type, and router
ID are hexadecimal numbers
0005, 0306, and 0107,
respectively.
Perform this configuration on the
PE.
By default, if BGP runs within an
MPLS backbone, and the BGP AS
number is not greater than 65535,
the first two octets of the external
route tag are 0xD000. The last two
octets are the local BGP AS
number. If the AS number is
greater than 65535, the external
route tag is 0.
Perform this configuration on the
PE.
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