Administrator Guide

Field Description
LS Type Displays the LSA’s type.
Link State ID Displays the Link State ID.
Advertising
Router
Identifies the advertising router’s ID.
Checksum Displays the Fletcher checksum of the LSA’s complete contents.
Length Displays the length in bytes of the LSA.
Network Mask Displays the network mask implemented on the area.
TOS Displays the Type of Service (TOS) options. Option 0 is the only option.
Metric Displays the LSA metric.
Example
DellEMC# show ip ospf 100 database asbr-summary
OSPF Router with ID (1.1.1.10) (Process ID 100)
Summary Asbr (Area 0.0.0.0)
LS age: 1437
Options: (No TOS-capability, No DC, E)
LS type: Summary Asbr
Link State ID: 103.1.50.1
Advertising Router: 1.1.1.10
LS Seq Number: 0x8000000f
Checksum: 0x8221
Length: 28
Network Mask: /0
TOS: 0 Metric: 2
LS age: 473
Options: (No TOS-capability, No DC, E)
LS type: Summary Asbr
Link State ID: 104.1.50.1
Advertising Router: 1.1.1.10
LS Seq Number: 0x80000010
Checksum: 0x4198
Length: 28
--More--
Related
Commands
● show ip ospf database — display OSPF database information.
show ip ospf database external
Display information on the AS external (type 5) LSAs.
Syntax
show ip ospf [process-id | vrf vrf-name ] database external [link-state-id]
[adv-router ip-address]
Parameters
process-id Enter the OSPF Process ID to show a specific process. If no Process ID is entered,
command applies only to the first OSPF process.
vrf vrf-name Enter the keyword vrf followed by the name of the VRF to view information on AS
external LSAs corresponding to the OSPF processes that are tied to a specific
VRF.
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:
Open Shortest Path First (OSPFv2 and OSPFv3) 1083