Reference Guide

1134 | Open Shortest Path First (OSPFv2)
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Command
History
Usage
Information
This command can be used to isolate problems with inter-area and external routes. In
OSPF inter-area and external routes are calculated by adding LSA cost to the cost of
reaching the router. If an inter-area or external route is not of correct cost, the display
can determine if the path to the originating router is correct or not.
Example
FTOS#show ip ospf 1 topology
Router ID Flags Cost Nexthop Interface Area
3.3.3.3 E/B/-/ 1 20.0.0.3 Gi 13/1 0
1.1.1.1 E/-/-/ 1 10.0.0.1 Gi 7/1 1
FTOS#
show ip ospf virtual-links
c e s
Display the OSPF virtual links configured and is useful for debugging OSPF routing
operations. If no OSPF virtual-links are enabled on the switch, no output is generated.
Syntax
show ip ospf process-id virtual-links
Parameters
Command Modes
EXEC
EXEC Privilege
Command
History
Example
FTOS#show ip ospf 1 virt
Virtual Link to router 192.168.253.5 is up
Run as demand circuit
Transit area 0.0.0.1, via interface GigabitEthernet 13/16, Cost of using 2
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
FTOS#
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 7.8.1.0 Introduced support of Multi-Process OSPF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series and E-Series
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.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 7.8.1.0 Introduced support of Multi-Process OSPF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series