Cisco Catalyst 3750 Command Reference Manual page 320
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- Command reference manual (1154 pages) ,
- Software configuration manual (926 pages) ,
- Hardware installation manual (231 pages)
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show interfaces
Table 2-21 show interfaces switchport Field Descriptions (continued)
Field
Access Mode VLAN
Trunking Native Mode VLAN
Trunking VLANs Enabled
Trunking VLANs Active
Pruning VLANs Enabled
Protected
Unknown unicast blocked
Unknown multicast blocked
Voice VLAN
Appliance trust
This is an example of output from the show interfaces interface trunk command. It displays trunking
information for the port.
Switch# show interfaces gigabitethernet1/0/1 trunk
Port
Gi1/0/1
Port
Gi1/0/1
Port
Gi1/0/1
Port
Gi1/0/1
Related Commands
Command
switchport access
switchport block
switchport mode
switchport protected
switchport trunk
Catalyst 3750 Switch Command Reference
2-294
Description
Displays the VLAN ID to which the port is configured.
Lists the VLAN ID of the trunk that is in native mode. Lists the
allowed VLANs on the trunk. Lists the active VLANs on the
trunk.
Lists the VLANs that are pruning-eligible.
Displays whether or not protected port is enabled (True) or
disabled (False) on the interface.
Displays whether or not unknown multicast and unknown
unicast traffic is blocked on the interface.
Displays the VLAN ID on which voice VLAN is enabled.
Displays the CoS setting of the data packets of the IP phone.
Mode
Encapsulation
auto
negotiate
Vlans allowed on trunk
1-4094
Vlans allowed and active in management domain
1-4
Vlans in spanning tree forwarding state and not pruned
1-4
Description
Configures a port as a static-access or dynamic-access port.
Blocks unknown unicast or multicast traffic on an interface.
Configures the VLAN membership mode of a port.
Isolates unicast, multicast, and broadcast traffic at Layer 2 from other
protected ports on the same switch.
pruning
Configures the VLAN pruning-eligible list for ports in trunking mode.
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
Status
Native vlan
trunking
1
78-16181-01
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