show ip ospf database brief
Use this command to display a summary of the OSPF database.
Command Syntax
show ip ospf database (self-originate|max-age|adv-router A.B.C.D|)
show ip ospf <0-65535> database(self-originate|max-age|adv-router A.B.C.D|)
Parameters
self-originate
Self-originated link states.
max-age
LSAs which have reached the maximum age (3600 seconds).
A.B.C.D
IPv4 address of the advertising router.
<0-65535>
ID of the router process
Command Mode
Privileged Exec mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#show ip ospf database
OSPF Router process 100 with ID (100.100.100.72)
Router Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Link count
10.100.12.57 10.100.12.57 930 0x80000003 0x90de 2
100.100.100.72 100.100.100.72 933 0x80000004 0x7592 2
Net Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum
10.100.10.72 100.100.100.72 933 0x80000001 0x0bef
Summary Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Route
10.60.0.0 10.100.12.57 928 0x80000001 0x5108 10.60.0.0/24
71.87.120.0 10.100.12.57 928 0x80000001 0xc2c5 71.87.120.0/24
127.0.0.1 10.100.12.57 928 0x80000001 0x23fb 127.0.0.1/32
OSPF Database Fields
Table 1-7 explains the fields for each database entry.
Table 1-7: ospf database output details
Field | Description |
|---|
Link ID | The meaning of this field depends on the type of Link-State Advertisement (LSA). Type 1: Router LSA (depends on the type of network to which the router connects): Point-to-point network: neighbor’s router ID. Transit network: IP address of the designated router’s interface. Stub network: IP network or subnet address Virtual link: Neighbor’s Router ID. Type 2: Network LSA: The IP address of the designated router’s interface. Type 3: Summary LSA: The IP address of the network or subnet being advertised. |
ADV Router | The ID of the router advertising the LSA. |
Age | The age of the LSA. |
Seq# | The sequence number of the LSA. This number increments each time a new instance of the LSA originates. This update helps other routers identify the most recent instance of the LSA. |
CkSum | The fetch checksum of the complete LSA except the Age field. |
Link count | Total number of links. |
Route | Summary prefix address. |
Last modified date: 07-13-2023