Specifications

Chapter 4 Configuring Routing Among VLANs with IEEE 802.1Q Encapsulation
VLAN Commands
4-8
Cisco 1700 Series Router Software Configuration Guide
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Usage Guidelines
The debug vlan packets command displays only packets with a VLAN identifier
that the router is not configured to support. This command allows you to identify
other VLAN traffic on the network. Virtual LAN packets that the router is
configured to route or switch are counted and indicated when you use the show
vlans command.
Example
The following is sample output from the debug vlan packets output:
Router# debug vlan packets
Virtual LAN packet information debugging is on
encapsulation dot1q
To enable IEEE 802.1Q encapsulation of traffic on a specified subinterface in
virtual LANs, use the encapsulation dot1q command in subinterface
configuration mode.
The command is as follows:
encapsulation dot1q vlan-id
Syntax Description
Default
Disabled.
Command Mode
Subinterface configuration.
vlan-id Virtual LAN identifier. The allowed range is from 1 to 4095 (in
hexadecimal, from 0x1 to 0xfff).