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For example, displayed information can be:
Switch#show ip ospf virtual-links
no virtual-link
（10）show ip protocols
“show ip protocols” command can be used to display the information of the routing
protocols running in the switch.
For example, displayed information can be:
Switch#sh ip protocols
OSPF is running.
my router ID is 100.1.1.1
preference=10 ase perference=150
export metric=1
export tag=-2147483648
area ID 1
interface count: 2
7times spf has been run for this area
net range:
LSRefreshTime is1800
RIP information
rip is shutting down
Displayed information Explanation
OSPF is running The running routing protocol is OSPF protocol.
My router ID The ID number of the layer3 switch running.
Preference OSPF routing priority.
Ase perference Autonomous system exterior routes priority
Export metric Metrics for exporting OSPF routes.
Export tag Tag value for exporting OSPF routes.
Area ID The ID of the OSPF area that the current layer3
switch resides.
Interface count Number of interface running OSPF routing protocol
N times spf has been run for this
area
The layer3 switch performs minimum tree spanning
calculation.
Net range The network scope for running OSPF protocol.
LSRefreshTime Link-state advertisement (LSA) update interval of
OSPF protocol.
15.4.4.2 OSPF Troubleshooting Help
In configuring and using OSPF protocol, the OSPF protocol may fail to run properly due to
reasons such as physical connection failure or wrong configurations. The user should
ensure the following:
Good condition of the physical connection.