Chapter 19
| VLAN Commands
Configuring VLAN Interfaces
– 466 –
trunk
- Specifies a port as an end-point for a VLAN trunk. A trunk is a direct
link between two switches, so the port transmits tagged frames that
identify the source VLAN. Note that frames belonging to the port’s default
VLAN (i.e., associated with the PVID) are also transmitted as tagged frames.
Default Setting
Hybrid mode, with the PVID set to VLAN 1.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Example
The following shows how to set the configuration mode to port 1, and then set the
switchport mode to hybrid:
Console(config)#interface ethernet 1/1
Console(config-if)#switchport mode hybrid
Console(config-if)#
Related Commands
switchport acceptable-frame-types (463)
switchport native vlan
This command configures the PVID (i.e., default VLAN ID) for a port. Use the
no
form
to restore the default.
Syntax
switchport native vlan
vlan-id
no switchport native vlan
vlan-id - Default VLAN ID for a port. (Range: 1-4094)
Default Setting
VLAN 1
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
â—†
When using Access mode, and an interface is assigned to a new VLAN, its PVID
is automatically set to the identifier for that VLAN. When using Hybrid mode,
the PVID for an interface can be set to any VLAN for which it is an untagged
member.
â—†
If acceptable frame types is set to
all
or switchport mode is set to
hybrid
, the
PVID will be inserted into all untagged frames entering the ingress port.
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