Chapter 19
| Unicast Routing
Configuring the Open Shortest Path First Protocol (Version 2)
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4. Click Apply.
Figure 512: Configuring Detailed Settings for a Virtual Link
To show the MD5 authentication keys configured for a virtual link:
1. Click Routing Protocol, OSPF, Interface.
2. Select Show MD5 Key from the Action list.
3. Select the VLAN ID.
Figure 513: Showing MD5 Authentication Keys
Displaying Link State
Database Information
Use the Routing Protocol > OSPF > Information (LSDB) page to show the Link State
Advertisements (LSAs) sent by OSPF routers advertising routes. The full collection
of LSAs collected by a router interface from the attached area is known as a link
state database. Routers that are connected to multiple interfaces will have a
separate database for each area. Each router in the same area should have an
identical database describing the topology for that area, and the shortest path to
external destinations.
The full database is exchanged between neighboring routers as soon as a new
router is discovered. Afterwards, any changes that occur in the routing tables are
synchronized with neighboring routers through a process called reliable flooding.
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