Link-State Database Information

Link-State Database Information
The command show ip ospf database will give you information about the all the LSA data
stored in the router’s OSPF link-state database. Here is a sample output from Plano’s OSPF linkstate
database:
plano#show ip ospf database
OSPF Router with ID (172.20.192.1) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
172.20.192.1 172.20.192.1 315 0x80000003 0x8972 2
192.168.24.1 192.168.24.1 316 0x80000003 0xC11B 2
198 Chapter 6  Interconnecting OSPF Areas
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
20.20.20.0 172.20.192.1 424 0x80000001 0xC2BA
172.16.20.0 192.168.24.1 473 0x80000001 0xF8AF
192.168.24.0 192.168.24.1 530 0x80000001 0x9662
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count
172.20.192.1 172.20.192.1 433 0x80000001 0xD916 1
Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
10.10.10.0 172.20.192.1 189 0x80000004 0xFD6B
172.16.20.0 172.20.192.1 304 0x80000001 0x97E0
192.168.24.0 172.20.192.1 304 0x80000001 0x3593
This command allows you to view the entire OSPF link-state database for the router. If you
just want to view specific LSA information stored in the database, there are parameters that can
be used with the command. Note that the ADV Router column lists the router ID of the advertising
router.