Instruction Manual

IP Routing Features
Configuring OSPF
Displaying OSPF Link State Information
To display OSPF link state information, enter show ip ospf link-state at any CLI
level. When you enter this command, the switch displays an output similar to
the following for all configured areas:
OSPF Link State Database for Area 0.0.0.0
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LSA Type Link State ID Router ID Age Sequence # Checksum
---------- --------------- --------------- ---- ----------- ----------
Router 10.0.8.32 10.0.8.32 65 0x80000281 0x0000a7b6
Router 10.0.8.33 10.0.8.33 1638 0x80000005 0x0000a7c8
Network 10.3.2.37 10.0.8.37 1695 0x80000006 0x00000443
Summary 10.3.16.0 10.0.8.33 1638 0x80000007 0x0000c242
Summary 10.3.16.0 10.0.8.35 1316 0x80000008 0x0000aa58
Summary 10.3.17.0 10.0.8.33 1638 0x8000027b 0x0000becf
Summary 10.3.17.0 10.0.8.35 1316 0x80000008 0x0000a957
AsbSummary 10.0.8.36 10.0.8.33 1412 0x80000002 0x00002cba
OSPF Link State Database for Area 10.3.16.0
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LSA Type Link State ID Router ID Age Sequence # Checksum
---------- --------------- --------------- ---- ----------- ----------
Router 10.0.8.33 10.0.8.33 1727 0x8000027e 0x0000d53c
Router 10.0.8.34 10.0.8.34 1420 0x80000283 0x0000de4f
Network 10.3.16.34 10.0.8.34 1735 0x80000005 0x00001465
Figure 5-45. Example of Show IP OSPF Link-State Output
The OSPF link state display shows the following contents of the LSA database;
one table for each area:
Table 5-16. CLI Display of OSPF Link State Information
Field
LSA Type
Link State ID
Advertised Router ID
Age
Content
Type of LSA. The possible types are:
• Router •Summary
•Network •AsbSummary
LSA ID for this LSA. The meaning depends on the LSA type.
Router ID of the router that originated this LSA.
Current age (in seconds) of this LSA.
5-108