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OSPF Show Commands

show ip ospf database

Displays OSPF database summary.

Syntaxshow ip ospf [{<instance-id>|vrf <vrfname>}] database [asbr-summary|external|network|router|summary|nssa-external|opaque-link|opaque-area|opaque-as [A.B.C.D [self-originate|adv-router <A.B.C.D>]]|[adv-router <E.F.G.H>|self-originate]]
Command modeEXEC
Parameters

  • instance-id – OSPF Instance ID. Range: 1 – 65535.

  • vrfname – VRF Name. Maximum: 15 characters, prefixed with Vrf.

  • A.B.C.D – Link State ID as an IP address.

  • E.F.G.H – Advertising Router as an IP address.

UsageNone
Supported Releases 1.1.0 or later
Click commandNone
Example 
sonic# show ip ospf database

       OSPF Router with ID (10.10.10.2)

                Router Link States (Area 0.0.0.0)

Link ID         ADV Router      Age  Seq#       CkSum  Link count
10.10.10.1      10.10.10.1       123 0x80000007 0x2e01 1
10.10.10.2      10.10.10.2       271 0x80000003 0x31ff 1

                Net Link States (Area 0.0.0.0)

Link ID         ADV Router      Age  Seq#       CkSum
20.20.20.2      10.10.10.2       271 0x80000001 0x1e9e

                Summary Link States (Area 0.0.0.0)

Link ID         ADV Router      Age  Seq#       CkSum  Route
30.30.30.0      10.10.10.1       123 0x80000001 0x9c3d 30.30.30.0/24

sonic#
sonic# show ip ospf database network 20.20.20.2

       OSPF Router with ID (10.10.10.2)


                Net Link States (Area 0.0.0.0)

  LS age: 352
  Options: 0x2  : *|-|-|-|-|-|E|-
  LS Flags: 0x3
  LS Type: network-LSA
  Link State ID: 20.20.20.2 (address of Designated Router)
  Advertising Router: 10.10.10.2
  LS Seq Number: 80000001
  Checksum: 0x1e9e
  Length: 32

  Network Mask: /24
        Attached Router: 10.10.10.1
        Attached Router: 10.10.10.2

sonic#
sonic# show ip ospf vrf Vrf-20 database router
VRF Name: Vrf-20

       OSPF Router with ID (10.10.10.2)


                Router Link States (Area 0.0.0.0)

  LS age: 213
  Options: 0x2  : *|-|-|-|-|-|E|-
  LS Flags: 0x6
  Flags: 0x1 : ABR
  LS Type: router-LSA
  Link State ID: 1.1.1.1
  Advertising Router: 1.1.1.1
  LS Seq Number: 80000004
  Checksum: 0x5216
  Length: 36

   Number of Links: 1

    Link connected to: a Transit Network
     (Link ID) Designated Router address: 20.20.20.2
     (Link Data) Router Interface address: 20.20.20.1
      Number of TOS metrics: 0
       TOS 0 Metric: 100


  LS age: 316
  Options: 0x2  : *|-|-|-|-|-|E|-
  LS Flags: 0x3
  Flags: 0x0
  LS Type: router-LSA
  Link State ID: 10.10.10.2
  Advertising Router: 10.10.10.2
  LS Seq Number: 80000003
  Checksum: 0x31ff
  Length: 36

   Number of Links: 1

    Link connected to: a Transit Network
     (Link ID) Designated Router address: 20.20.20.2
     (Link Data) Router Interface address: 20.20.20.2
      Number of TOS metrics: 0
       TOS 0 Metric: 100

Last updated: February 28, 2025