IP Routing Commands
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The following shows output when using the summary keyword.
Number of TOS metrics Type of Service metric – This router only supports TOS 0 (or normal service)
Metrics Cost of the link
Console#show ip ospf database summary
OSPF Router with id(10.1.1.253)
Displaying Summary Net Link States(Area 10.1.0.0)
Link State Data Summary (Type 3)
-------------------------------
LS age: 686
Options: Support External routing capability
LS Type: Summary Links(Network)
Link State ID: 10.2.6.0 (The destination Summary Network Number)
Advertising Router: 10.1.1.252
LS Sequence Number: 80000003
LS Checksum: 0x3D02
Length: 28
Network Mask: 255.255.255.0
Metric: 1
Console#
Table 42-17 show ip ospf summary - display description
Field Description
OSPF Router id Router ID
LS age Age of LSA (in seconds)
Options Optional capabilities associated with the LSA
LS Type Summary Links - LSA describes routes to networks
Link State ID Router ID of the router that originated the LSA
Advertising Router Advertising router ID
LS Sequence Number Sequence number of LSA (used to detect older duplicate LSAs)
LS Checksum Checksum of the complete contents of the LSA
Length The length of the LSA in bytes
Network Mask Destination network’s IP address mask
Metrics Cost of the link
Table 42-16 show ip ospf router - display description (Continued)
Field Description
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