Specifications

11-16
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-07
Chapter 11 Configuring the Switch Interfaces
Monitoring and Maintaining the Interfaces
This example shows how to display the status of all interfaces:
Switch# show interfaces status
Port Name Status Vlan Duplex Speed Type
Fa0/1 connected 1 a-full a-100 10/100BaseTX
Fa0/2 notconnect 1 auto auto 10/100BaseTX
Fa0/3 notconnect 1 auto auto 10/100BaseTX
<output truncated>
Fa0/23 notconnect 1 auto auto 10/100BaseTX
Fa0/24 notconnect 1 auto auto 10/100BaseTX
Gi0/1 notconnect 1 auto auto unknown
Gi0/2 notconnect 1 auto auto unknown
This example shows how to display the status of switching ports:
Switch# show interfaces switchport
Name: Fa0/1
Switchport:Enabled
Administrative Mode:dynamic desirable
Operational Mode:static access
Administrative Trunking Encapsulation:negotiate
Negotiation of Trunking:On
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Voice VLAN:none
Administrative private-vlan host-association:none
Administrative private-vlan mapping:none
Operational private-vlan:none
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001
Capture Mode: Disabled
Capture VLANs Allowed:ALL
Protected:true
Unknown unicast blocked:disabled
Table 11-2 show Commands for Interfaces
Command Purpose
show interfaces [interface-id] Display the status and configuration of all interfaces or a specific
interface.
show interfaces [interface-id] capabilities [module
{module-number}]
Display the capabililities of an interface. If you do not specify a
module, the capabilities for all ports on the switch are displayed.
show interfaces interface-id status [err-disabled] Display interface status or a list of interfaces in error-disabled state.
show interfaces [interface-id] switchport Display administrative and operational status of switching
(nonrouting) ports.
show interfaces [interface-id] description Display the description configured on an interface or all interfaces and
the interface status.
show ip interface [interface-id] Display the usability status of all interfaces configured for IP or the
specified interface.
show running-config interface [interface-id] Display the running configuration in RAM for the interface.
show version Display the hardware configuration, software version, the names and
sources of configuration files, and the boot images.