Cisco Catalyst 3750-X

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Catalyst 3750-X and 3560-X Switch Command Reference
OL-29704-01
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
show interfaces
This is an example of partial output from the show interfaces status command. It displays the status of
all interfaces.
Switch# show interfaces status
Port Name Status Vlan Duplex Speed Type
Gi1/0/1 connected routed a-half a-100 10/100/1000BaseTX
Gi1/0/2 notconnect 121,40 auto auto 10/100/1000BaseTX
Gi1/0/3 notconnect 1 auto auto 10/100/1000BaseTX
Gi1/0/4 notconnect 18 auto auto Not Present
Gi1/0/5 connected 121 a-full a-1000 10/100/1000BaseTX
Gi1/0/6 connected 122,11 a-full a-1000 10/100/1000BaseTX
<output truncated>
Gi2/0/1 notconnect 1 auto auto 10/100/1000BaseTX
Gi2/0/2 notconnect 1 auto auto unsupported
<output truncated>
These are examples of output from the show interfaces status command for a specific interface when
private VLANs are configured. Port 22 is configured as a private-VLAN host port. It is associated with
primary VLAN 20 and secondary VLAN 25.
Switch# show interfaces gigabitethernet1/0/22 status
Port Name Status Vlan Duplex Speed Type
Gi1/0/22 connected 20,25 a-full a-100 10/100BaseTX
In this example, port 20 is configured as a private-VLAN promiscuous port. The display shows only the
primary VLAN 20.
Switch# show interfaces gigabitethernet1/0/20 status
Port Name Status Vlan Duplex Speed Type
Gi1/0/20 connected 20 a-full a-100 10/100BaseTX
This is an example of output from the show interfaces status err-disabled command. It displays the
status of interfaces in the error-disabled state.
Switch# show interfaces status err-disabled
Port Name Status Reason
Gi1/0/2 err-disabled gbic-invalid
Gi2/0/3 err-disabled dtp-flap
This is an example of output from the show interfaces switchport command for a port. Table 2-34
describes the fields in the display.
Note Private VLAN trunks are not supported in this release, so those fields are not applicable.
Switch# show interfaces gigabitethernet1/0/1 switchport
Name: Gi1/0/1
Switchport: Enabled
Administrative Mode: dynamic auto
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
Administrative private-vlan host-association:10 (VLAN0010) 502 (VLAN0502)
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none