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A VLAN should be present in the switch to be able to add it to the VLAN group.
The number of VLANs mapped to a VLAN group is not limited by Cisco IOS Software Release. But if the number of VLANs in a VLAN group exceed the recommended value of 32, the mobility behavior is unexpected and in the VLAN group, L2 multicast breaks for some VLANs. So it is the responsibility of the administrator to configure feasible number of VLANs in a VLAN group. When a VLAN is added to a VLAN group mapped to a WLAN which already has 32 VLANs, a warning is generated. But when a new VLAN group is mapped to a WLAN with more than 32 VLANs, an error is generated.
For expected behavior of the VLAN group, the VLANs mapped in the group must be present in the switch. The static IP client behavior is not supported.
Whenever a wireless client connects to a wireless network (WLAN), the client is placed in a VLAN that is associated with the WLAN. In a large venue such as an auditorium, a stadium, or a conference room where there are numerous wireless clients, having only a single WLAN to accommodate many clients might be a challenge.
The VLAN group feature uses a single WLAN that can support multiple VLANs. The clients can get assigned to one of the configured VLANs. This feature maps a WLAN to a single VLAN or multiple VLANs using the VLAN groups. When a wireless client associates to the WLAN, the VLAN is derived by an algorithm based on the MAC address of the wireless client. A VLAN is assigned to the client and the client gets the IP address from the assigned VLAN. This feature also extends the current AP group architecture and AAA override architecture, where the AP groups and AAA override can override a VLAN or a VLAN group to which the WLAN is mapped.
How to Configure VLAN Groups
1. configure terminal
2. vlan group WORD vlan-list vlan-ID
3. end
1. configure terminal
2. vlan group WORD vlan-list vlan-ID
3. no vlan group WORD vlan-list vlan-ID
4. end
To create a VLAN group using the switch web UI, you must:
1. configure terminal
2. wlan WORD number
3. client vlan WORD
4. end
Command or Action | Purpose | |
---|---|---|
Step 1 | configure terminal Example: Switch# configure terminal |
Enters global command mode. |
Step 2 | wlan WORD number Example: Switch(config)#wlan wlanname 512
|
Enables the WLAN to map a VLAN group using an identifier. The WLAN identifier values range from 1 to 512. |
Step 3 | client vlan WORD Example: Switch(config-wlan)#client vlan vlangrp1 |
Maps the VLAN group to the WLAN by entering the VLAN identifier, VLAN group, or the VLAN name. |
Step 4 | end Example: Switch(config-wlan)#end |
Exits the global configuration mode and returns to privileged EXEC mode . Alternatively, press CTRL-Z to exit the global configuration mode. |
To add a VLAN group to WLAN using the switch web UI, you must follow the steps defined in this procedure.
Step 1 |
To add a VLAN group to a WLAN, choose The general parameter page of the WLAN group appears.
|
Step 2 | Select the VLAN group values listed in the Interface/Interface Group drop-down list to associate the selected WLAN profile to a VLAN group. |
Step 3 | Click Apply. |
To remove a VLAN groups using the switch web UI, you must:
Step 1 |
Choose The VLAN Group page appears, listing the following details of the VLAN groups associated with the switch.
|
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Step 2 |
Check the checkbox of the VLAN group you need to delete from the VLAN group names displayed in the VLAN group list . You will receive a confirmation message confirming deletion of the selected VLAN group. |
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Step 3 | Click Ok. |
Commands | Description |
---|---|
show vlan group | Displays the list of VLAN groups with its name and the VLANs that are available. |
show vlan group group-name <group_name> | Displays the specified VLAN group details. |
show wireless vlan group <group_name> | Displays the specified wireless VLAN group details. |
To view a VLAN groups using the switch web UI, you must:
Step 1 |
Choose The VLAN Group page appears, listing the following details of the VLAN groups associated with the switch.
|
||||||
Step 2 | Click Apply. |
After configuring VLAN groups, you can configure the following:
Related Topic | Document Title |
---|---|
For complete syntax and usage information for the commands used in this chapter. |
|
VLAN access-maps |
Security Configuration Guide (Catalyst 3650 Switches) Security Command Reference (Catalyst 3650 Switches) |
VLAN and Mobility Agents |
Mobility Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches) |
Cisco Flexible NetFlow |
Cisco Flexible NetFlow Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches) Flexible Netflow Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches) |
IGMP Snooping |
IP Multicast Routing Command Reference (Catalyst 3650 Switches) IP Multicast Routing Configuration Guide (Catalyst 3650 Switches) |
IPv6 |
|
SPAN |
Network Management Command Reference (Catalyst 3650 Switches) Network Management Configuration Guide (Catalyst 3650 Switches) |
Platform-independent configuration information |
Identity Based Networking Services Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches) |
Description | Link |
---|---|
To help you research and resolve system error messages in this release, use the Error Message Decoder tool. |
https://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi |
Standard/RFC | Title |
---|---|
RFC 1573 |
Evolution of the Interfaces Group of MIB-II |
RFC 1757 |
Remote Network Monitoring Management |
RFC 2021 |
SNMPv2 Management Information Base for the Transmission Control Protocol using SMIv2 |
MIB | MIBs Link |
---|---|
All supported MIBs for this release. |
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Description | Link |
---|---|
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Release |
Modification |
---|---|
Cisco IOS XE 3.3SE |
This feature was introduced. |
Cisco IOS XE 3.3SE |
VLAN GUI support. |