H3C Access Controllers
Cooperative Roaming for 802.11v Clients
Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring cooperative roaming for 802.11v clients· 1

Network configuration· 1

Analysis· 2

Restrictions and guidelines· 2

Procedures· 2

Verifying the configuration· 3

Configuration files· 4

Related documentation· 5

 

Introduction

The following information provides a cooperative roaming configuration example for 802.11v clients.

Prerequisites

NOTE: 802.11v is supported on Comware 7-based ACs of 5450 and later versions and Comware 9-based ACs of 1046P01 and later versions.

 

The following information applies to Comware-based access controllers and access points. Procedures and information in the examples might be slightly different depending on the software or hardware version of the access controllers and access points.

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of WLAN access and WLAN roaming.

Example: Configuring cooperative roaming for 802.11v clients

Network configuration

As shown in Figure 1, the AC manages AP 1 and AP 2 and an 802.11v client accesses the wireless network through AP 1.

Configure cooperative roaming on the AC to guide the client to roam to AP 2 when the RSSI is lower than 25 dBm.

Figure 1 Network diagram

 

Analysis

·     To realize intra-AC roaming, you must apply the same wireless service template to AP 1 and AP 2.

·     802.11v cooperative roaming takes effect only on 802.11v clients. To view whether a client supports 802.11v, execute the display wlan client verbose command in any view on the AC after the client comes online. If the BTM field in the command output displays active, the client supports 802.11v.

[AC] display wlan client verbose | inc BTM

BTM mode                          : active

Restrictions and guidelines

Use the serial ID labeled on the AP's rear panel to specify an AP.

Procedures

Configure the interfaces of the AC

# Create VLAN 100 and VLAN-interface 100, and assign an IP address to the interface. The AC will use this IP address to establish a CAPWAP tunnel with the AP.

<AC> system-view

[AC] vlan 100

[AC-vlan100] quit

[AC] interface vlan-interface 100

[AC-Vlan-interface100] ip address 192.1.1.1 16

# Create VLAN 200 and VLAN-interface 200, and assign an IP address to the interface. The client will use this VLAN to access the wireless network.

[AC] vlan 200

[AC-vlan200] quit

[AC] interface vlan-interface 200

[AC-Vlan-interface200] ip address 192.2.1.1 24

[AC-Vlan-interface200] quit

# Configure interface GigabitEthernet 1/0/1 that connects to AP 1 as an access port and assign the port to VLAN 100.

[AC] interface gigabitethernet 1/0/1

[AC-GigabitEthernet1/0/1] port link-type access

[AC-GigabitEthernet1/0/1] port access vlan 100

[AC-GigabitEthernet1/0/1] quit

# Configure interface GigabitEthernet 1/0/2 that connects to AP 2 as an access port and assign the port to VLAN 100.

[AC] interface gigabitethernet 1/0/2

[AC-GigabitEthernet1/0/2] port link-type access

[AC-GigabitEthernet1/0/2] port access vlan 100

[AC-GigabitEthernet1/0/2] quit

Configure a wireless service

# Create service template 1 and enter its view.

[AC] wlan service-template 1

# Set the SSID to service.

[AC-wlan-st-1] ssid service

# Set the VLAN to VLAN 200.

[AC-wlan-st-1] vlan 200

# Enable BSS transition management.

 

NOTE: This feature can be configured only when the service template is disabled.

 

[AC-wlan-st-1] bss transition-management enable

# Enable the service template.

[AC-wlan-st-1] service-template enable

Configure AP settings

NOTE: To simply AP configuration on a large-scale network, configure AP settings on a per AP group basis as a best practice.

 

# Create manual AP officeap1 with model WA6320 and SN 219801A28N819CE0002T.

[AC] wlan ap officeap1 model WA6320

[AC-wlan-ap-officeap1] serial-id 219801A28N819CE0002T

[AC-wlan-ap-officeap1] quit

# Create manual AP officeap2 with model WA6320 and SN 219801A28N819CE0002R.

[AC] wlan ap officeap2 model WA6320

[AC-wlan-ap-officeap2] serial-id 219801A28N819CE0002R

[AC-wlan-ap-officeap2] quit

# Create AP group group1 and add AP officeap1 and AP officeap2 to the group.

[AC] wlan ap-group group1

[AC-wlan-ap-group-group1] ap officeap1 officeap2

# Bind service template 1 to radio 2 for AP group group1.

[AC-wlan-ap-group-group1] ap-model WA6320

[AC-wlan-ap-group-group1-ap-model-WA6320] radio 2

[AC-wlan-ap-group-group1-ap-model-WA6320-radio-2] service-template 1

# Enable client anti-sticky, set the RSSI threshold to 25 dBm, and set the detection interval to 6 seconds. Edit the parameters as needed. The device will detect the RSSI every 6 seconds and once the RSSI is below the threshold, the AC will guide the client for BSS transition.

[AC-wlan-ap-group-group1-ap-model-WA6320-radio-2] sacp anti-sticky enable rssi 25 interval 6

# Enable radio 2.

[AC-wlan-ap-group-group1-ap-model-WA6320-radio-2] radio enable

[AC-wlan-ap-group-group1-ap-model-WA6320-radio-2] quit

[AC-wlan-ap-group-group1-ap-model-WA6320] quit

[AC-wlan-ap-group-group1] quit

Verifying the configuration

# Execute the display wlan sacp move-history command in any view on the AC to view the transition history of the client with MAC address 78AC-C0AF-944F. Verify that the client has roamed from AP officeap1 to AP officeap2.

<Sysname> display wlan sacp move-history mac-address 78AC-C0AF-944F

Total entries: 1

Current entries: 1

Current Clients: 1

Time          MAC address    AP name                   Chl RSSI Request/Response  Result

1/11 15:57:09 78AC-C0AF-944F S:officeap1               6   25   1      /1 [1 ,0 ]

                             T:officeap2               11

1/11 15:57:10                A:officeap2               11  40                     BTM-1

Configuration files

·     AC

#

vlan 100

#

vlan 200

#

wlan service-template 1

 ssid service

 vlan 200

bss transition-management enable

service-template enable

#

interface Vlan-interface100

 ip address 192.1.1.1 255.255.255.0

#

interface Vlan-interface200

 ip address 192.2.1.1 255.255.255.0

#

interface GigabitEthernet1/0/1

 port link-type access

 port access vlan 100

#

interface GigabitEthernet1/0/2

port link-type access

 port access vlan 100

#

wlan ap officeap1 model WA6320

 serial-id 219801A28N819CE0002T

#

wlan ap officeap2 model WA6320

 serial-id 219801A28N819CE0002R

#

wlan ap-group group1

ap officeap1 officeap2

ap-model WA6320

radio 2

radio enable

service-template 1

sacp anti-sticky enable rssi 25 interval 6

Related documentation

·     AP and WT Management Command Reference in H3C Access Controllers Command References

·     AP and WT Management Configuration Guide in H3C Access Controllers Configuration Guides

·     WLAN Access Command Reference in H3C Access Controllers Command References

·     WLAN Access Configuration Guide in H3C Access Controllers Configuration Guides

·     WLAN Roaming Command Reference in H3C Access Controllers Command References

·     WLAN Roaming Configuration Guide in H3C Access Controllers Configuration Guides