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Catalyst 2950 and Catalyst 2955 Switch Command Reference
0L-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
show interfaces
This is an example of output from the show interfaces trunk command for an interface. It displays
trunking information for the interface.
Switch# show interfaces fastethernet0/1 trunk
Port Mode Encapsulation Status Native vlan
Fa0/1 desirable 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/1 1-4094
Port Vlans allowed and active in management domain
Fa0/1 1,4,196,306
Port Vlans in spanning tree forwarding state and not pruned
Fa0/1 1,306
This is an example of output from the show interfaces transceiver properties command. If you do not
specify an interface, the output of the command shows the status on all switch ports:
Switch# show interfaces transceiver properties
Name : Fa0/1
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A
Name : Fa0/2
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Operational Speed: 10
Operational Duplex: full
Operational Auto-MDIX: N/A
Name : Fa0/3
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A
<output truncated>
This is an example of output from the show interfaces module number transceiver properties
command for a specific interface:
Switch# show interfaces fastethernet0/1 transceiver properties
Name : Fa0/1
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A
This is an example of output from the show interfaces command for an LRE port:
Switch# show interfaces longreachethernet0/5
LongReachEthernet0/5 is up, line protocol is up