Example for Configuring Channel Switching Without Service Interruption

Procedure

1. Configure the network devices.
   # Add GE0/0/1 and GE0/0/2 on Switch to VLAN 100 and VLAN 101, and GE0/0/3 to VLAN 100. VLAN 100 is the default VLAN of GE0/0/1 and GE0/0/2.

   <HUAWEI> system-view
   [HUAWEI] sysname Switch
   [Switch] vlan batch 100 101
   [Switch] interface gigabitethernet 0/0/1
   [Switch-GigabitEthernet0/0/1] port link-type trunk
   [Switch-GigabitEthernet0/0/1] port trunk pvid vlan 100
   [Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 to 101
   [Switch-GigabitEthernet0/0/1] port-isolate enable
   [Switch-GigabitEthernet0/0/1] quit
   [Switch] interface gigabitethernet 0/0/2
   [Switch-GigabitEthernet0/0/2] port link-type trunk
   [Switch-GigabitEthernet0/0/2] port trunk pvid vlan 100
   [Switch-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 to 101
   [Switch-GigabitEthernet0/0/2] port-isolate enable
   [Switch-GigabitEthernet0/0/2] quit
   [Switch] interface gigabitethernet 0/0/3
   [Switch-GigabitEthernet0/0/3] port link-type trunk
   [Switch-GigabitEthernet0/0/3] port trunk allow-pass vlan 100
   [Switch-GigabitEthernet0/0/3] quit

   # Add GE1/0/0 on Router to VLAN 101. Create VLANIF 101 and set its IP address to 10.23.101.2/24.

   <Huawei> system-view
   [Huawei] sysname Router
   [Router] vlan batch 101
   [Router] interface gigabitethernet 1/0/0
   [Router-GigabitEthernet1/0/0] port link-type trunk
   [Router-GigabitEthernet1/0/0] port trunk allow-pass vlan 101
   [Router-GigabitEthernet1/0/0] quit
   [Router] interface vlanif 101
   [Router-Vlanif101] ip address 10.23.101.2 24
   [Router-Vlanif101] quit

2. Configure the AC to communicate with the network devices.

   If the AC and APs are directly connected, set the default VLAN of the interfaces connected to the APs to management VLAN 100.

   # On the AC, add GE0/0/1 to VLAN 100. Create VLANIF 100 and set its IP address to 10.23.101.2/24.

   <HUAWEI> system-view
   [HUAWEI] sysname AC
   [AC] vlan batch 100 101
   [AC] interface gigabitethernet 0/0/1
   [AC-GigabitEthernet0/0/1] port link-type trunk
   [AC-GigabitEthernet0/0/1] port trunk allow-pass vlan 100
   [AC-GigabitEthernet0/0/1] quit
   [AC] interface vlanif 100
   [AC-Vlanif100] ip address 10.1.1.2 24
   [AC-Vlanif100] quit

3. Configure the DHCP servers to assign IP addresses to APs and STAs.

   # On Switch, configure VLANIF 100 to assign IP addresses to APs.

   [Switch] dhcp enable
   [Switch] interface vlanif 100
   [Switch-Vlanif100] ip address 10.1.1.1 255.255.255.0
   [Switch-Vlanif100] dhcp select interface
   [Switch-Vlanif100] dhcp server excluded-ip-address 10.1.1.2
   [Switch-Vlanif100] quit

   # On Switch, configure VLANIF 101 to assign IP addresses to STAs.

   Configure the DNS server as required. The common methods are as follows:

   • In interface address pool scenarios, run the dhcp server dns-list ip-address &<1-8> command in the VLANIF interface view.
   • In global address pool scenarios, run the dns-list ip-address &<1-8> command in the IP address pool view.

   [Switch] interface vlanif 101
   [Switch-Vlanif101] ip address 10.1.2.1 255.255.255.0
   [Switch-Vlanif101] dhcp select interface
   [Switch-Vlanif101] quit

4. Configure an AP to go online.
   # Create an AP group to which the APs with the same configuration can be added.

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

   # Create a regulatory domain profile, configure the AC country code in the profile, and apply the profile to the AP group.

   [AC-wlan-view] regulatory-domain-profile name default
   [AC-wlan-regulate-domain-default] country-code cn
   [AC-wlan-regulate-domain-default] quit
   [AC-wlan-view] ap-group name ap-group1
   [AC-wlan-ap-group-ap-group1] regulatory-domain-profile default
   Warning: Modifying the country code will clear channel, power and antenna gain configurations of the radio and reset the AP. Continue?[Y/N]:y  
   [AC-wlan-ap-group-ap-group1] quit
   [AC-wlan-view] quit

   # Configure the AC's source interface.

   In V200R021C00 and later versions, when the CAPWAP source interface or source address is configured, the system checks whether security-related configurations exist, including the PSK for DTLS encryption, PSK for DTLS encryption between ACs, user name and password for logging in to the AP, and password for logging in to the global offline management VAP, the configuration can be successful only when both of them exist. Otherwise, the system prompts you to complete the configuration first.

   [AC] capwap source interface vlanif 100
   Set the DTLS PSK(contains 6-32 plain-text characters, or 48 or 68 cipher-text characters that must be a combination of at least two of the following: lowercase letters a to z, uppercase letters A to Z, digits, and special characters):******
   
   Set the DTLS inter-controller PSK(contains 6-32 plain-text characters, or 48 or 68 cipher-text characters that must be a combination of at least two of the following: lowercase letters a to z, uppercase letters A to Z, digits, and special characters):******
   
   Set the user name for FIT APs(contains 4-31 plain-text characters, which can only include letters, digits and underlines. And the first character must be a letter):admin
   
   Set the password for FIT APs(plain-text password of 8-128 characters or cipher-text password of 48-188 characters that must be a combination of at least three of the following: lowercase letters a to z, uppercase letters A to Z, digits, and special characters):********
   
   Set the global temporary-management psk(contains 8-63 plain-text characters, or 48-108 cipher-text characters that must be a combination of at least two of the following: lowercase letters a to z, uppercase letters A to Z, digits, and special characters):********

   # Import the AP offline on the AC and add the AP to AP group ap-group1. Assume that the MAC addresses of AP1 and AP2 are 60de-4476-e360 and dcd2-fc04-b500, respectively. Configure names for the APs based on the APs' deployment locations, so that you can know where the APs are deployed from their names. For example, name AP1 area_1 if it is deployed in Area 1.

   The default AP authentication mode is MAC address authentication. If the default settings are retained, you do not need to run the ap auth-mode mac-auth command.

   In this example, the AP5030DN is used and has two radios: radio 0 (2.4 GHz radio) and radio 1 (5 GHz radio).

   [AC] wlan
   [AC-wlan-view] ap auth-mode mac-auth
   [AC-wlan-view] ap-id 0 ap-mac 00e0-fc76-e360
   [AC-wlan-ap-0] ap-name area_1
   [AC-wlan-ap-0] ap-group ap-group1
   Warning: This operation may cause AP reset. If the country code changes, it will clear channel, power and antenna gain configuration s of the radio, Whether to continue? [Y/N]:y  
   [AC-wlan-ap-0] quit
   [AC-wlan-view] ap-id 1 ap-mac 00e0-fc04-b500
   [AC-wlan-ap-1] ap-name area_2
   [AC-wlan-ap-1] ap-group ap-group1
   Warning: This operation may cause AP reset. If the country code changes, it will clear channel, power and antenna gain configuration s of the radio, Whether to continue? [Y/N]:y  
   [AC-wlan-ap-1] quit

   # After the AP is powered on, run the display ap all command to check the AP state. If the State field is displayed as nor, the AP goes online successfully.

   [AC-wlan-view] display ap all
   Total AP information:
   nor  : normal          [2]
   Extra information:
   P  : insufficient power supply
   --------------------------------------------------------------------------------------------------
   ID   MAC            Name   Group     IP            Type            State STA Uptime      ExtraInfo
   --------------------------------------------------------------------------------------------------
   0    00e0-fc76-e360 area_1 ap-group1 10.1.1.253    AP5030DN        nor   0   10S         -
   1    00e0-fc04-b500 area_2 ap-group1 10.1.1.254    AP5030DN        nor   0   10S         -
   --------------------------------------------------------------------------------------------------
   Total: 2

5. Configure WLAN service parameters.
   # Create security profile wlan-net and configure a security policy in the profile.

   In this example, the security policy is set to WPA-WPA2+PSK+AES and the password to a1234567. In actual situations, the security policy must be configured according to service requirements.

   [AC-wlan-view] security-profile name wlan-net
   [AC-wlan-sec-prof-wlan-net] security wpa-wpa2 psk pass-phrase a1234567 aes
   [AC-wlan-sec-prof-wlan-net] quit

   # Create SSID profile wlan-net and set the SSID name to wlan-net.

   [AC-wlan-view] ssid-profile name wlan-net
   [AC-wlan-ssid-prof-wlan-net] ssid wlan-net
   [AC-wlan-ssid-prof-wlan-net] quit

   # Create 2G radio profile wlan-radio2g and 5G radio profile wlan-radio5g. Configure channel switching without service interruption.

   The following example configures a 2G radio profile. The configuration of the 5G radio profile is similar.

   [AC-wlan-view] radio-2g-profile name wlan-radio2g
   [AC-wlan-radio-2g-prof-wlan-radio2g] undo channel-switch announcement disable
   [AC-wlan-radio-2g-prof-wlan-radio2g] channel-switch mode continue-transmitting
   [AC-wlan-radio-2g-prof-wlan-radio2g] quit
   [AC-wlan-view] radio-5g-profile name wlan-radio5g
   [AC-wlan-radio-5g-prof-wlan-radio5g] undo channel-switch announcement disable
   [AC-wlan-radio-5g-prof-wlan-radio5g] channel-switch mode continue-transmitting
   [AC-wlan-radio-5g-prof-wlan-radio5g] quit

   # Create VAP profile wlan-net, set the data forwarding mode and service VLAN, and apply the security profile and SSID profile to the VAP profile.

   [AC-wlan-view] vap-profile name wlan-net
   [AC-wlan-vap-prof-wlan-net] forward-mode direct-forward
   [AC-wlan-vap-prof-wlan-net] service-vlan vlan-id 101
   [AC-wlan-vap-prof-wlan-net] security-profile wlan-net
   [AC-wlan-vap-prof-wlan-net] ssid-profile wlan-net
   [AC-wlan-vap-prof-wlan-net] quit

   # Bind the 2G radio profile, 5G radio profile, and VAP profile to the AP group and apply the VAP profile to radio 0 and radio 1 of the AP.

   [AC-wlan-view] ap-group name ap-group1
   [AC-wlan-ap-group-ap-group1] radio-2g-profile wlan-radio2g radio 0
   [AC-wlan-ap-group-ap-group1] radio-5g-profile wlan-radio5g radio 1
   [AC-wlan-ap-group-ap-group1] vap-profile wlan-net wlan 1 radio 0
   [AC-wlan-ap-group-ap-group1] vap-profile wlan-net wlan 1 radio 1
   [AC-wlan-ap-group-ap-group1] quit

6. Verify the configuration.

   The WLAN with SSID huawei is available for STAs connected to AP1 and AP2, and these STAs can connect to the WLAN. When radio calibration for AP1 or AP2 is implemented to change the channel of AP1 or AP2, service data forwarding for wireless users in Area A is not affected. Run the display radio all command to view the working channels of all APs.

   [AC-wlan-view] display radio all
   CH/BW:Channel/Bandwidth
   CE:Current EIRP (dBm)
   ME:Max EIRP (dBm)
   CU:Channel utilization
   ST:Status 
   WM:Working Mode (normal/monitor/monitor dual-band-scan) 
   ------------------------------------------------------------------------------------
   AP ID Name    RfID  Band  Type    ST  CH/BW    CE/ME   STA     CU    WM
   ------------------------------------------------------------------------------------
   0     area_1  0     2.4G  bgn     on  11/20M   23/23   0       8%    normal
   0     area_1  1     5G    an11ac  on  149/20M  23/23   0       7%    normal
   1     area_2  0     2.4G  an11ac  on  1/20M    23/23   0       30%   normal
   1     area_2  1     5G    an      on  149/20M  23/23   0       21%   normal
   ------------------------------------------------------------------------------------
   Total:4