14-WLAN Configuration Guide (AC)

HomeSupportResource CenterConfigure & DeployConfiguration GuidesH3C MSR1000[2600][3600] Routers Configuration Guides(V9)-R9119-6W10014-WLAN Configuration Guide (AC)
09-WLAN roaming configuration
Title Size Download
09-WLAN roaming configuration 87.35 KB

Configuring WLAN roaming

About WLAN roaming

WLAN roaming enables clients to seamlessly roam among APs in an ESS while retaining their IP address and authorization information during the roaming process.

 

 

NOTE:

The term "AC" in this document refers to MSR routers that can function as ACs. For information about routers that can function as ACs, see "Compatibility of MSR routers and AC functionality."

Intra-AC roaming mechanism

Intra-AC roaming enables clients to roam among APs that are managed by the same AC.

Figure 1 Intra-AC roaming

As shown in Figure 1, intra-AC roaming uses the following procedure:

1.     The client comes online from AP 1, and the AC creates a roaming entry for the client.

2.     The client roams to AP 2. The AC examines the roaming entry for the client and determines whether to perform fast roaming.

If the client uses RSN + 802.1X authentication and carries the same PMKID as the AC, fast roaming is used, and the client can associate with AP 2 without reauthentication. If it is not, the client must be reauthenticated before associating with AP 2.

 

Restrictions: Hardware compatibility with WLAN roaming

For information about MSR routers that can function as ACs, see "Compatibility of hardware and AC functionality."

Restrictions and guidelines: WLAN roaming configuration

For a service template where an AP is configured as the client authenticator, WLAN roaming is not supported. For more information about client authentication, see "Configuring WLAN authentication."

Enabling SNMP notifications for WLAN roaming

About this task

To report critical WLAN roaming events to an NMS, enable SNMP notifications for WLAN roaming. For WLAN roaming event notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see Network Management and Monitoring Configuration Guide.

Procedure

1.     Enter system view.

system-view

2.     Enable SNMP notifications for WLAN roaming.

snmp-agent trap enable wlan mobility

By default, SNMP notifications for WLAN roaming are disabled.

Display and maintenance commands for WLAN roaming

Execute display commands in any view.

 

Task

Command

Display the number of roamings for each client on the AC.

display wlan mobility roam-count

Display roam-track information for a client on the AC.

display wlan mobility roam-track mac-address mac-address

WLAN roaming configuration examples

Example: Configuring intra-AC roaming

Network configuration

As shown in Figure 2, configure intra-AC roaming to enable the client to roam from AP 1 to AP 2. The two APs are managed by the same AC.

Figure 2 Network diagram

Procedure

# Create a service template named service, set the SSID to 1, and enable the service template.

<AC> system-view

[AC] wlan service-template service

[AC-wlan-st-service] ssid 1

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

[AC-wlan-st-service] quit

# Create a manual AP named ap1, and specify the AP model and serial ID.

[AC] wlan ap ap1 model WA4320i-ACN

[AC-wlan-ap-ap1] serial-id 219801A0CNC13C004126

# Bind the service template to radio 1 of AP 1.

[AC-wlan-ap-ap1] radio 1

[AC-wlan-ap-ap1-radio-1] radio enable

[AC-wlan-ap-ap1-radio-1] service-template service

[AC-wlan-ap-ap1-radio-1] quit

[AC-wlan-ap-ap1] quit

# Create a manual AP named ap2, and specify the AP model and serial ID.

[AC] wlan ap ap2 model WA4320i-ACN

[AC-wlan-ap-ap2] serial-id 219801A0CNC125002216

# Bind the service template to radio 1 of AP 2.

[AC-wlan-ap-ap2] radio 1

[AC-wlan-ap-ap2-radio-1] radio enable

[AC-wlan-ap-ap2-radio-1] service-template service

[AC-wlan-ap-ap2-radio-1] quit

[AC-wlan-ap-ap2] quit

Verifying the configuration

# Enable the client to come online from AP 1. (Details not shown.)

# Verify that the client associates with AP 1, and the roaming status is N/A, which indicates that the client has not performed any roaming.

[AC] display wlan client verbose

Total number of clients: 1

 

MAC address                        : 9cd3-6d9e-6778

IPv4 address                       : 10.1.1.114

IPv6 address                       : N/A

Username                           : N/A

AID                                : 1

AP ID                              : 1

AP name                            : ap1

Radio ID                           : 1

SSID                               : 1

BSSID                              : 000f-e200-4444

VLAN ID                            : 1

Sleep count                        : 242

Wireless mode                      : 802.11ac

Channel bandwidth                  : 80MHz

SM power save                      : Enabled

SM power save mode                 : Dynamic

Short GI for 20MHz                 : Supported

Short GI for 40MHz                 : Supported

Short GI for 80MHz                 : Supported

Short GI for 160/80+80MHz          : Not supported

STBC RX capability                 : Not supported

STBC TX capability                 : Not supported

LDPC RX capability                 : Not supported

SU beamformee capability           : Not supported

MU beamformee capability           : Not supported

Beamformee STS capability          : N/A

Block Ack                          : TID 0 In

Supported VHT-MCS set              : NSS1 0, 1, 2, 3, 4, 5, 6, 7, 8

                                     NSS2 0, 1, 2, 3, 4, 5, 6, 7, 8

Supported HT MCS set               : 0, 1, 2, 3, 4, 5, 6, 7,

                                     8, 9, 10, 11, 12, 13, 14,

                                     15, 16, 17, 18, 19, 20,

                                     21, 22, 23

Supported rates                    : 6, 9, 12, 18, 24, 36,

                                     48, 54 Mbps

QoS mode                           : WMM

Listen interval                    : 10

RSSI                               : 62

Rx/Tx rate                         : 130/11

Authentication method              : Open system

Security mode                      : PRE-RSNA

AKM mode                           : Not configured

Cipher suite                       : N/A

User authentication mode           : Bypass

Authorization ACL ID               : 3001(Not effective)

Authorization user profile         : N/A

Authorization CAR                  : N/A

Roam status                        : N/A

Key derivation                     : SHA1

PMF status                         : Enabled

Forward policy name                : Not configured

Online time                        : 0days 0hours 1minutes 13seconds

FT status                          : Inactive

# Verify that the AC has a roaming entry for the client.

[AC] display wlan mobility roam-track mac-address 9cd3-6d9e-6778

Total entries: 1

BSSID           Created at           Online time       AC IP address  RID  AP name

000f-e200-4444  2016-06-14 11:12:28  00hr 01min 16sec  127.0.0.1      1    ap1

# Enable the client roam to AP 2. (Details not shown.)

# Verify that the client has associated with AP 2, and the roaming status is Intra-AC roam.

[AC] display wlan client verbose

Total number of clients: 1

 

MAC address                        : 9cd3-6d9e-6778

IPv4 address                       : 10.1.1.114

IPv6 address                       : N/A

Username                           : N/A

AID                                : 1

AP ID                              : 2

AP name                            : ap2

Radio ID                           : 1

SSID                               : 1

BSSID                              : 000f-e203-7777

VLAN ID                            : 1

Sleep count                        : 242

Wireless mode                      : 802.11ac

Channel bandwidth                  : 80MHz

SM power save                      : Enabled

SM power save mode                 : Dynamic

Short GI for 20MHz                 : Supported

Short GI for 40MHz                 : Supported

Short GI for 80MHz                 : Supported

Short GI for 160/80+80MHz          : Not supported

STBC RX capability                 : Not supported

STBC TX capability                 : Not supported

LDPC RX capability                 : Not supported

SU beamformee capability           : Not supported

MU beamformee capability           : Not supported

Beamformee STS capability          : N/A

Block Ack                          : TID 0 In

Supported VHT-MCS set              : NSS1 0, 1, 2, 3, 4, 5, 6, 7, 8

                                     NSS2 0, 1, 2, 3, 4, 5, 6, 7, 8

Supported HT MCS set               : 0, 1, 2, 3, 4, 5, 6, 7,

                                     8, 9, 10, 11, 12, 13, 14,

                                     15, 16, 17, 18, 19, 20,

                                     21, 22, 23

Supported rates                    : 6, 9, 12, 18, 24, 36,

                                     48, 54 Mbps

QoS mode                           : WMM

Listen interval                    : 10

RSSI                               : 62

Rx/Tx rate                         : 130/11

Authentication method              : Open system

Security mode                      : PRE-RSNA

AKM mode                           : Not configured

Cipher suite                       : N/A

User authentication mode           : Bypass

Authorization ACL ID               : 3001(Not effective)

Authorization user profile         : N/A

Authorization CAR                  : N/A

Roam status                        : Intra-AC roam

Key derivation                     : SHA1

PMF status                         : Enabled

Forward policy name                : Not configured

Online time                        : 0days 0hours 5minutes 13seconds

FT status                          : Inactive

# Verify that the AC has updated the roaming entry for the client.

[AC] display wlan mobility roam-track mac-address 9cd3-6d9e-6778

Total entries: 2

BSSID           Created at           Online time          AC IP address  RID  AP name

000f-e203-7777  2016-06-14 11:12:28  00hr 01min 02sec     127.0.0.1      1    ap2

000f-e200-4444  2016-06-14 11:12:04  00hr 03min 51sec     127.0.0.1      1    ap1