Configuring Ospf Nsr - HPE FlexNetwork HSR6800 Configuration Manual

Configuring OSPF NSR

Network requirements
As shown in
Enable OSPF NSR on Router S to ensure correct routing when an active/standby switchover occurs
on Router S. Router S is an HSR6802, HSR6804, or HSR6808 router.
Figure 30 Network diagram
Configuration procedure
Configure IP addresses for the interfaces on each router and configure OSPF:
1.
Follow
(Details not shown.)
Configure OSPF on the routers, ensuring that Router S, Router A, and Router B can
communicate with each other at Layer 3 and dynamic route update can be implemented among
them with OSPF. (Details not shown.)
Configure OSPF NSR:
2.
# Enable OSPF NSR on Router S.
<RouterS> system-view
[RouterS] ospf non-stop-routing
Verify the configuration:
3.
After Router S establishes neighbor relationships with Router A and Router B, they start to
exchange routing information. After network convergence, perform an active/standby
switchover on Router S. During the switchover period, use the display ospf peer command to
check the neighbor relationships between Router A and Router S and between Router B and
Router S; use the display ospf routing command to check if there are routes from Router A to
the loopback interface on Router B and from Router B to the loopback interface on Router A.
# Perform an active/standby switchover on Router S.
[RouterS] slave switchover enable
[RouterS] slave switchover
Caution!!! Confirm to switch slave to master? [Y/N]:y
# Display OSPF neighbors and routes on Router A.
<RouterA> display ospf peer
Area: 0.0.0.0
Router ID
192.168.1.41
<RouterA> display ospf routing
Figure 30, Router S, Router A, and Router B belong to the same OSPF routing domain.
Figure 30 to configure the IP address and subnet mask of each interface on the routers.
OSPF Process 1 with Router ID 192.168.1.40
Neighbor Brief Information
Address
12.12.12.2
OSPF Process 1 with Router ID 192.168.1.40
Routing Tables
Pri Dead-Time Interface
1 40 GE2/1/1
108
State
Full/BDR