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DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-72
DES-7200(config-router)# show
running-config
Display existing configurations
Note
The sham-link must be configured on two PEs intending to establish
the sham-link, which won't be established if only one PE is
configured.
The following conditions must be met in order to establish the
sham-link between two PEs:
1. The area-id of the sham-link configured on two PEs must be
identical;
2. The <source address, destination address> of sham-link
configured on one PE must correspond to the <source address,
destination address> of sham-link configured on another PE;
3. The source address and destination address used to establish
sham-link on the PE must be 32-bit Loopback address bound to
VRF;
Caution
The source address to establish sham-link must be
redistributed to the BGP protocol of VRF, but it cannot
participate in the calculation of VRF OSPF instance.
# Configure sham-link for VRF OSPF instance, with area ID being 0, source address being
1.1.1.1 and destination address being 2.2.2.2.
DES-7200# configure terminal
DES-7200(config)# router ospf 10 vrf vrf1
DES-7200(config-router)# area 0 sham-link 1.1.1.1 2.2.2.2
2.3.5.6 Configure capability vrf-lite (optional)
The PE-CE OSPF feature of VRF OSPF instance involves LSA conversion as per domain ID, DN
bit and VPN route tag. In certain circumstances, if you don't want VRF OSPF instance to support
PE-CE OSPF feature, you can execute "capability vrf-lite" command to disable the feature.
Command Function
DES-7200# configure terminal
Enter global configuration mode