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DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-69
Protocol specification
RFC4576 and RFC4577 describe the mechanism to realize L3VPN OSPF.
2.3.5.2 Default configurations
Function Default setting
domain-tag
AS ID local BGP
domain-id
Default value: NULL; default type: 0x0005
capability vrf-lite
By default, PE-CE OSPF feature is supported by VRF
OSPF instance
extcommunity-type
In the OSPF instance Extended Communities attribute
carried by BGP: the default type of route-id is 0x0107, and
the default type of route-type is 0x0306.
2.3.5.3 Configure domain ID (optional)
Domain ID is used to indicate the domain to which the OSPF instance belongs. Generally, all
VRF OSPF instances belonging to the same VPN shall be configured to the same domain ID.
The configuration steps are shown below:
Command Function
DES-7200# configure terminal
Enter global configuration mode
DES-7200(config)# router ospf
ospf-id vrf vrf-name
Create OSPF instance and enter OSPF
configuration mode
DES-7200(config-router)#
domain-id value [secondary]
(Optional) Configure the domain ID of OSPF
instance. The OSPF domain ID is 0 by default.
DES-7200(config-router)# show
running-config
Display existing configurations.