Introduction
Configuring Wireless VLAN tagging
Resolution
Determines whether the IEEE 802.1Q protocol is used to tag VLAN packets. IEEE 802.1Q protocol is used to connect multiple switches and routers and for defining VLAN topologies. This setting is user configurable.
Early 340 series access points are incompatible with VLAN tagging. Early versions of the 340 series access point can set up VLANs, but clients on non-native VLANs cannot transmit and receive large packets because early 340 series access points were limited to a packet data length of 1500 bytes.
You can identify an affected access point by browsing to the Ethernet Identification page and checking the Maximum Packet Data Length parameter. If it is 1500, the failure will occur.
If you have an early 340 series access point on your network, you can eliminate the problem by setting the Maximum Packet Data Length parameter for all other devices to 1400 bytes
For information on configuring VLANs, refer to the following documents for devices running VxWorks:
- The Enabling VLAN (802.1Q) Tagging and Identifying the Native VLAN section of Configuring VLANs(For 350 series Access Points (APs))
- The Enabling VLAN (802.1Q) Tagging and Identifying the Native VLAN section of Configuring VLANs (For 350 series bridges)
- The Enabling VLAN (802.1Q) Tagging and Identifying the Native VLAN section of Configuring VLANs(For 1200 series APs)
For information on configuring VLANs on devices running Cisco IOS Software, refer to the following documents:
- Configuring VLANs(For 1100 series APs)
- Configuring VLANs(For 1200 series APs)
- Configuring VLANs (For 1400 series bridges)
Problem Type
Configure / Configuration issues
Install
Products
Access point
Bridge
SW Features
VLANs