Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
OL-8566-01
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
show interfaces
Name : Fa0/1
Administrative Speed: auto 10 100
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Administrative Power Inline: enable
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A
Name : Fa0/2
Administrative Speed: auto 10
Administrative Duplex: auto
Administrative Auto-MDIX: N/A
Administrative Power Inline: enable
Operational Speed: auto
Operational Duplex: auto
Operational Auto-MDIX: N/A
<output truncated>
This is an example of output from the show interfaces module 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
Administrative Power Inline: disable
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A
This is an example of output from the show interfaces switchport backup command:
Switch# show interfaces switchport backup
Switch Backup Interface Pairs:
Active Interface Backup Interface State
--------------------------------------------------------------
Fa1/0/1 Fa1/0/2 Active Up/Backup Standby
Fa3/0/3 Fa4/0/5 Active Down/Backup Up
Po1 Po2 Active Standby/Backup Up
Related Commands Command Description
switchport access Configures a port as a static-access or dynamic-access port.
switchport block Blocks unknown unicast or multicast traffic on an interface.
switchport broadcast Configures the VLAN membership mode of a port.
switchport protected Isolates unicast, multicast, and broadcast traffic at Layer 2 from other
protected ports on the same switch.
switchport trunk pruning Configures the VLAN pruning-eligible list for ports in trunking mode.