Users Guide

Field Description
Advertising Router Identies the router ID of the LSA’s originating router.
Checksum Identies the link state sequence number. This number enables you to identify old
or duplicate LSAs.
Length Displays the Fletcher checksum of an LSA’s complete contents.
Network Mask Displays the length in bytes of the LSA.
Attached Router Identies the IP address of routers attached to the network.
Example
Dell#show ip ospf 1 data network
OSPF Router with ID (20.20.20.5) (Process ID 1)
Network (Area 0.0.0.0)
LS age: 1372
Options: (No TOS-capability, DC, E)
LS type: Network
Link State ID: 202.10.10.2
Advertising Router: 20.20.20.8
LS Seq Number: 0x80000006
Checksum: 0xa35
Length: 36
Network Mask: /24
Attached Router: 20.20.20.8
Attached Router: 20.20.20.9
Attached Router: 20.20.20.7
Network (Area 0.0.0.1)
LS age: 252
Options: (TOS-capability, No DC, E)
LS type: Network
Link State ID: 192.10.10.2
Advertising Router: 192.10.10.2
LS Seq Number: 0x80000007
Checksum: 0x4309
Length: 36
Network Mask: /24
Attached Router: 192.10.10.2
Attached Router: 20.20.20.1
Attached Router: 20.20.20.5
Dell#
Related Commands
show ip ospf database — displays OSPF database information.
show ip ospf database nssa-external
Display NSSA-External (type 7) LSA information.
Syntax
show ip ospf [process-id] database nssa-external [link-state-id] [adv-
router ip-address]
Parameters
process-id Enter the OSPF Process ID to show a specic process. If no Process ID is entered,
command applies only to the rst OSPF process.
link-state-id (OPTIONAL) Specify LSA ID in dotted decimal format. The LSA ID value depends
on the LSA type, and it can be one of the following:
1078
Open Shortest Path First (OSPFv2 and OSPFv3)