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DES-7200 Configuration Guide Chapter 4 OSPF
Configuration
4-69
Number of areas attached to this router: 1: 1 normal 0 stub 0 nssa
Area 0 (BACKBONE)
Number of interfaces in this area is 1(1)
Number of fully adjacent neighbors in this area is 1
Area has message digest authentication
SPF algorithm last executed 17:24:38.030 ago
SPF algorithm executed 11 times
Number of LSA 7. Checksum 0x032955
The above information shows that area authentication has been enabled.
4.4.12 OSPF GR Configuration Example
Requirements
As shown below, two DES-7200 high-end switches have GR Restart capability,
and both devices are equipped with primary and secondary engines to allow
redundant backup at the control plane. DES-7200-1 builds OSPF adjacencies
with DES-7200-2and other GR helpers, and OSPF GR capability is supported by
all devices. The connection layout is shown below:
OSPF GR configuration example
It is required that two DES-7200 devices shall allow non-stop packet forwarding in
order to enhance the high reliability of core devices.
Specific configurations
Configure DES-7200-1:
DES-7200(config)# router ospf 1
DES-7200(config-router)# graceful-restart
DES-7200(config-router)# graceful-restart helper strict-lsa-checking
Configure DES-7200-2: