Reference Guide

Default Not configured
Command Mode EXEC
Usage
Information
● LS Age—Displays the LS age.
● Options—Displays the optional capabilities available on the router.
● LS Type—Displays the Link State type.
● Link State ID—Identifies the router ID.
● Advertising Router—Identifies the advertising router’s ID.
● LS Seq Number—Identifies the LS sequence number (identifies old or duplicate LSAs).
● Checksum—Displays the Fletcher checksum of an LSA’s complete contents.
● Length—Displays the LSA length in bytes.
● Network Mask—Identifies the network mask implemented on the area.
● TOS—Displays the ToS options. The only option available is zero..
● Metric—Displays the LSA metric.
Example
OS10# show ip ospf 10 database summary
OSPF Router with ID (111.2.1.1) (Process ID 10)
Summary Network (Area 0.0.0.0)
LS age: 623
Options: (No TOS-capability, No DC)
C: Summary Network
Link State ID: 115.1.1.0
Advertising Router: 111.111.111.1
LS Seq Number: 0x800001e8
Checksum: 0x4a67
Length: 28
Network Mask: /24
TOS: 0 Metric: 0
Supported
Releases
10.2.0E or later
show ip ospf interface
Displays the configured OSPF interfaces. You must enable OSPF to display output.
Syntax
show ip ospf interface [process-id]interface or show ip ospf [process-id]
interface [interface]
Parameters
● process-id — (Optional) Displays information for an OSPF Process ID. If you do not enter a
Process ID, this command applies only to the first OSPF process.
● interface — (Optional) Enter the interface information:
○ ethernet — Enter the Ethernet interface information (1 to 48)
○ port channel — Enter the port-channel interface number (1 to 128).
○ vlan — Enter the VLAN interface number (1 to ).
Default Not configured
Command Mode EXEC
Example
OS10# show ip ospf interface
ethernet1/1/1 is up, line protocol is up
Internet Address 10.0.0.2/24, Area 0.0.0.0
Process ID 200, Router ID 10.0.0.2, Network Type broadcast, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 10.0.0.2, Interface address 10.0.0.2 (local)
Backup Designated router (ID) , Interface address 0.0.0.0
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Layer 3 411