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
show interfaces
Use the show interfaces privileged EXEC command to display the administrative and operational status
of all interfaces or a specified interface.
show interfaces [interface-id | vlan vlan-id] [accounting | capabilities [module {module-number}]
| counters | description | etherchannel | flowcontrol | pruning | stats | status [err-disabled]
| switchport [backup | module {module-number}] | trunk] | [transceiver properties | detail]
[module {module-number} | trunk] | [ | {begin | exclude | include} expression]
Syntax Description interface-id (Optional) Valid interfaces include physical ports (including type, module, and
port number) and port channels. The port-channel range is 1 to 48.
vlan vlan-id (Optional) VLAN identification. The range is 1 to 4094.
accounting (Optional) Display accounting information on the interface, including active
protocols and input and output packets and octets.
Note The display shows only packets processed in software; hardware-switched
packets do not appear.
capabilities (Optional) Display the capabilities of all interfaces or the specified interface,
including the features and options that you can configure on the interface. Though
visible in the command line help, this option is not available for VLAN IDs.
module
module-number
(Optional) Display capabilities, switchport configuration, or transceiver
characteristics (depending on preceding keyword) of all interfaces on the The
range is 1 to 9. This option is not available if you entered a specific interface ID.
counters (Optional) See the show interfaces counters command.
description (Optional) Display the administrative status and description set for an interface.
etherchannel (Optional) Display interface EtherChannel information.
flowcontrol (Optional) Display interface flowcontrol information
pruning (Optional) Display interface trunk VTP pruning information.
stats (Optional) Display the input and output packets by switching path for the
interface.
status (Optional) Display the status of the interface. A status of unsupported in the Type
field means that a non-Cisco small form-factor pluggable (SFP) module is inserted
in the module slot.
err-disabled (Optional) Display interfaces in error-disabled state.
switchport (Optional) Display the administrative and operational status of a switching
(nonrouting) port, including port blocking and port protection settings.
backup (Optional) Display Flex Link backup interface configuration and status for the
specified interface.
transceiver
[detail |
properties]
(Optional) Display the physical properties of a CWDM
1
or DWDM
2
small
form-factor (SFP) module interface. The keywords have these meanings:
• detail—(Optional) Display calibration properties, including high and low
numbers and any alarm information.
• properties—(Optional) Display speed, duplex, and inline power settings on
an interface.