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Example for Configuring Priorities of Lync Packets

Configuration Process

You need to configure and maintain WLAN features and functions in different profiles. These WLAN profiles include regulatory domain profile, radio profile, VAP profile, AP system profile, AP wired port profile, WIDS profile, WDS profile, and Mesh profile. When configuring WLAN services, you need to set related parameters in the WLAN profiles and bind the profiles to the AP group or APs. Then the configuration is automatically delivered to and takes effect on the APs. WLAN profiles can reference one another; therefore, you need to know the relationships among the profiles before configuring them. For details about the profile relationships and their basic configuration procedure, see WLAN Service Configuration Procedure.

Networking Requirements

In Figure 1, to ensure that employees of an enterprise can access network resources of departments, the enterprise needs to deploy WLAN services to implement mobile office. To facilitate instant communication of employees, wireless terminals need to perform voice and video communication, desktop sharing, and file transfer through Lync software.

The enterprise network administrator wants to increase priorities of Lync packets so that Lync packets are processed preferentially during forwarding.

Figure 1 Networking for configuring priorities of Lync packets

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure basic WLAN services so that users can connect to the wireless network.
  2. Increase priorities of Lync packets so that Lync packets are processed preferentially during forwarding.
Table 1 Data plan

Item

Data

DHCP server
  • AC functions as a DHCP server to assign IP addresses to the STAs and AP.
  • AC1 functions as a DHCP server to assign IP addresses to the STAs and AP1.
IP address pools for AP and AP1
  • AP: 10.23.100.2-10.23.100.254/24
  • AP1: 10.23.200.2-10.23.200.254/24
IP address pools for STAs
  • AC side: 10.23.101.2-10.23.101.254/24
  • AC1 side: 10.23.201.2-10.23.201.254/24
Source interface addresses of AC and AC1
  • VLANIF100 on AC: 10.23.100.1/24
  • VLANIF200 on AC1: 10.23.200.1/24
AP group
  • Name: ap-group1
  • Referenced profile: VAP profile wlan-vap and regulatory domain profile domain1
Regulatory domain profile
  • Name: domain1
  • Country code: CN
SSID profile
  • Name: wlan-ssid
  • SSID name: wlan-net
Security profile
  • Name: wlan-security
  • Security policy: WPA2+PSK+AES
  • Password: a1234567
VAP profile
  • Name: wlan-vap
  • Forwarding mode: tunnel forwarding
  • Service VLAN of AC: VLAN 101
  • Service VLAN of AC1: VLAN 201
  • Referenced profile: SSID profile wlan-ssid, security profile wlan-security, and UCC profile lync-service
UCC profile
  • Name: lync-service
  • Priorities of different Lync packets

According to the networking and data plan, the configuration of AC1 is similar to that of the AC and the configuration of SwitchB is similar to that of SwitchA. The AC and SwitchA are used as an example. The configurations of AC1 and SwitchB are not mentioned here.

Configuration Notes

  • No ACK mechanism is provided for multicast packet transmission on air interfaces. In addition, wireless links are unstable. To ensure stable transmission of multicast packets, they are usually sent at low rates. If a large number of such multicast packets are sent from the network side, the air interfaces may be congested. You are advised to configure multicast packet suppression to reduce impact of a large number of low-rate multicast packets on the wireless network. Exercise caution when configuring the rate limit; otherwise, the multicast services may be affected.
    • In direct forwarding mode, you are advised to configure multicast packet suppression on switch interfaces connected to APs.
    • In tunnel forwarding mode, you are advised to configure multicast packet suppression in traffic profiles of the AC.
    For details on how to configure traffic suppression, see How Do I Configure Multicast Packet Suppression to Reduce Impact of a Large Number of Low-Rate Multicast Packets on the Wireless Network?.
  • Configure port isolation on the interfaces of the device directly connected to APs. If port isolation is not configured and direct forwarding is used, a large number of unnecessary broadcast packets may be generated in the VLAN, blocking the network and degrading user experience.

  • In tunnel forwarding mode, the management VLAN and service VLAN cannot be the same. Only packets from the management VLAN are transmitted between the AC and APs. Packets from the service VLAN are not allowed between the AC and APs.

Procedure

  1. Set the NAC mode to unified on the AC so that users can connect to the network properly.

    <HUAWEI> system-view
    [HUAWEI] authentication unified-mode

    If the NAC mode is changed from traditional to unified, the unified mode takes effect after you save the configuration and restart the device.

  2. Configure SwitchA and the AC so that the AP and AC can transmit CAPWAP packets.

    # Add GE0/0/1 that connects SwitchA to the AP to management VLAN 100 and add GE0/0/2 that connects SwitchA to the AC to the same VLAN.

    <HUAWEI> system-view
    [HUAWEI] sysname SwitchA
    [SwitchA] vlan batch 100
    [SwitchA] interface gigabitethernet 0/0/1
    [SwitchA-GigabitEthernet0/0/1] port link-type trunk
    [SwitchA-GigabitEthernet0/0/1] port trunk pvid vlan 100
    [SwitchA-GigabitEthernet0/0/1] port trunk allow-pass vlan 100
    [SwitchA-GigabitEthernet0/0/1] quit
    [SwitchA] interface gigabitethernet 0/0/2
    [SwitchA-GigabitEthernet0/0/2] port link-type trunk
    [SwitchA-GigabitEthernet0/0/2] port trunk allow-pass vlan 100
    [SwitchA-GigabitEthernet0/0/2] quit

    # Add GE0/0/1 that connects the AC to SwitchA to VLAN 100.

    [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

  3. Configure the AC to communicate with the upstream device.

    # Add AC uplink interface GE0/0/2 to service VLAN 101.

    [AC] interface gigabitethernet 0/0/2
    [AC-GigabitEthernet0/0/2] port link-type trunk
    [AC-GigabitEthernet0/0/2] port trunk allow-pass vlan 101
    [AC-GigabitEthernet0/0/2] quit
    

    Configure routes based on the actual networking to ensure that the AC can communicate with each device on the network. The route configuration is not provided here.

  4. Configure the AC as a DHCP server to allocate IP addresses to STAs and the AP.

    # Configure the AC as the DHCP server to allocate an IP address to the AP from the IP address pool on VLANIF 100, and allocate IP addresses to STAs from the IP address pool on VLANIF 101.

    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.
    [AC] dhcp enable
    [AC] interface vlanif 100
    [AC-Vlanif100] ip address 10.23.100.1 24
    [AC-Vlanif100] dhcp select interface
    [AC-Vlanif100] quit
    [AC] interface vlanif 101
    [AC-Vlanif101] ip address 10.23.101.1 24
    [AC-Vlanif101] dhcp select interface
    [AC-Vlanif101] quit

  5. Configure the AP to go online.

    # Create an AP group and add the AP to the AP group.

    [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 domain1
    [AC-wlan-regulate-domain-domain1] country-code cn
    [AC-wlan-regulate-domain-domain1] quit
    [AC-wlan-view] ap-group name ap-group1
    [AC-wlan-ap-group-ap-group1] regulatory-domain-profile domain1
    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.

    [AC] capwap source interface vlanif 100
    # Import the AP offline on the AC and add the AP to AP group ap-group1. Assume that the AP's MAC address is 60de-4476-e360. Configure a name for the AP based on the AP's deployment location, so that you can know where the AP is deployed from its name. For example, name the AP 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 60de-4476-e360
    [AC-wlan-ap-0] ap-name area_1
    Warning: This operation may cause AP reset. Continue? [Y/N]:y  
    [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

    # 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 normally.

    [AC-wlan-view] display ap all
    Total AP information: 
    nor  : normal          [1] 
    Extrainfo : Extra information 
    P  : insufficient power supply 
    -------------------------------------------------------------------------------------------------- 
    ID   MAC            Name   Group     IP            Type            State STA Uptime      ExtraInfo 
    -------------------------------------------------------------------------------------------------- 
    0    60de-4476-e360 area_1 ap-group1 10.23.100.254 AP5030DN        nor   0   10S         - 
    -------------------------------------------------------------------------------------------------- 
    Total: 1

  6. Configure WLAN service parameters.

    # Create security profile wlan-security and set the security policy in the profile.

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

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

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

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

    # Create VAP profile wlan-vap, 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-vap
    [AC-wlan-vap-prof-wlan-vap] forward-mode tunnel
    [AC-wlan-vap-prof-wlan-vap] service-vlan vlan-id 101
    [AC-wlan-vap-prof-wlan-vap] security-profile wlan-security
    [AC-wlan-vap-prof-wlan-vap] ssid-profile wlan-ssid
    [AC-wlan-vap-prof-wlan-vap] quit

    # Bind VAP profile wlan-vap to the AP group and apply the profile to radio 0 and radio 1 of the AP.

    [AC-wlan-view] ap-group name ap-group1
    [AC-wlan-ap-group-ap-group1] vap-profile wlan-vap wlan 1 radio all
    [AC-wlan-ap-group-ap-group1] quit

  7. Set channels and power for the AP radios.

    Automatic channel and power calibration functions are enabled by default. The manual channel and power configurations take effect only when these two functions are disabled. The channel and power configuration for the AP radios in this example is for reference only. In actual scenarios, configure channels and power for AP radios based on country codes of APs and network planning results.

    # Disable automatic channel and power calibration functions of radio 0, and configure the channel and power for radio 0.
    [AC-wlan-view] ap-id 0
    [AC-wlan-ap-0] radio 0
    [AC-wlan-radio-0/0] calibrate auto-channel-select disable
    [AC-wlan-radio-0/0] calibrate auto-txpower-select disable
    [AC-wlan-radio-0/0] channel 20mhz 6
    Warning: This action may cause service interruption. Continue?[Y/N]y 
    [AC-wlan-radio-0/0] eirp 127
    [AC-wlan-radio-0/0] quit
    # Disable automatic channel and power calibration functions of radio 1, and configure the channel and power for radio 1.
    [AC-wlan-ap-0] radio 1
    [AC-wlan-radio-0/1] calibrate auto-channel-select disable
    [AC-wlan-radio-0/1] calibrate auto-txpower-select disable
    [AC-wlan-radio-0/1] channel 20mhz 149
    Warning: This action may cause service interruption. Continue?[Y/N]y 
    [AC-wlan-radio-0/1] eirp 127
    [AC-wlan-radio-0/1] quit
    [AC-wlan-ap-0] quit

  8. Configure priorities of Lync packets.

    # Enable the AC to communicate with the Lync server and specify the port number.

    [AC-wlan-view] quit
    [AC] lync listener http-port 2000

    # Configure a UCC profile and configure priorities of Lync packets.

    [AC] ucc-profile name lync-service
    [AC-ucc-prof-lync-service] app-share remark 8021p 3
    [AC-ucc-prof-lync-service] file-transfer remark 8021p 2
    [AC-ucc-prof-lync-service] video remark 8021p 6
    [AC-ucc-prof-lync-service] voice remark 8021p 5
    [AC-ucc-prof-lync-service] quit

    # Bind the UCC profile lync-service to the VAP profile wlan-vap.

    [AC] wlan
    [AC-wlan-view] vap-profile name wlan-vap
    [AC-wlan-vap-prof-wlan-vap] ucc-profile lync-service
    [AC-wlan-vap-prof-wlan-vap] quit

  9. Verify the configuration.

    Run the display ucc-profile command on the AC to check priorities of Lync packets.

    [AC-wlan-view] display ucc-profile name lync-service
    --------------------------------------------------------------------------------
    Lync app share 802.1p precedence     : 3
    Lync app share DSCP precedence       : -
    Lync app share local precedence      : -
    Lync file transfer 802.1p precedence : 2
    Lync file transfer DSCP precedence   : -
    Lync file transfer local precedence  : -
    Lync video 802.1p precedence         : 6
    Lync video DSCP precedence           : -
    Lync video local precedence          : -
    Lync voice 802.1p precedence         : 5
    Lync voice DSCP precedence           : -
    Lync voice local precedence          : -
    --------------------------------------------------------------------------------

Configuration Files

  • SwitchA configuration file

    #
    sysname SwitchA
    #
    vlan batch 100
    #
    interface GigabitEthernet0/0/1
     port link-type trunk
     port trunk pvid vlan 100
     port trunk allow-pass vlan 100
    #
    interface GigabitEthernet0/0/2
     port link-type trunk
     port trunk allow-pass vlan 100
    #
    return
  • AC configuration file

    #
    sysname AC
    #
    vlan batch 100 to 101
    #
    dhcp enable
    #
    ucc-profile name lync-service
     app-share remark 8021p 3
     file-transfer remark 8021p 2
     video remark 8021p 6
     voice remark 8021p 5
    #
    interface Vlanif100
     ip address 10.23.100.1 255.255.255.0
     dhcp select interface
    #
    interface Vlanif101
     ip address 10.23.101.1 255.255.255.0
     dhcp select interface
    #
    interface GigabitEthernet0/0/1
     port link-type trunk
     port trunk allow-pass vlan 100
    #
    interface GigabitEthernet0/0/2
     port link-type trunk
     port trunk allow-pass vlan 101
    #
    lync listener http-port 2000
    #
    capwap source interface vlanif100
    #
    wlan
     security-profile name wlan-security
      security wpa2 psk pass-phrase %^%#V,P<>[Alx9w#65(;}U1*:RPcYv`/L!$/Xk6Mv1f>%^%# aes
     ssid-profile name wlan-ssid
      ssid wlan-net
     vap-profile name wlan-vap
      forward-mode tunnel
      service-vlan vlan-id 101
      ssid-profile wlan-ssid
      security-profile wlan-security
      ucc-profile lync-service
     regulatory-domain-profile name domain1
     ap-group name ap-group1
      regulatory-domain-profile domain1
      radio 0
       vap-profile wlan-vap wlan 1
      radio 1
       vap-profile wlan-vap wlan 1
     ap-id 0 ap-mac 60de-4476-e360
      ap-name area_1
      ap-group ap-group1
      radio 0
       channel 20mhz 6
       eirp 127
      radio 1
       channel 20mhz 149
       eirp 127
    #
    return
  • SwitchB configuration file

    #
    sysname SwitchB
    #
    vlan batch 200
    #
    interface GigabitEthernet0/0/1
     port link-type trunk
     port trunk pvid vlan 200
     port trunk allow-pass vlan 200
    #
    interface GigabitEthernet0/0/2
     port link-type trunk
     port trunk allow-pass vlan 200
    #
    return
  • AC1 configuration file

    #
    sysname AC1
    #
    vlan batch 200 to 201
    #
    dhcp enable
    #
    ucc-profile name lync-service
     app-share remark 8021p 3
     file-transfer remark 8021p 2
     video remark 8021p 6
     voice remark 8021p 5
    #
    interface Vlanif200
     ip address 10.23.200.1 255.255.255.0
     dhcp select interface
    #
    interface Vlanif201
     ip address 10.23.201.1 255.255.255.0
     dhcp select interface
    #
    interface GigabitEthernet0/0/1
     port link-type trunk
     port trunk allow-pass vlan 200
    #
    interface GigabitEthernet0/0/2
     port link-type trunk
     port trunk allow-pass vlan 201
    #
    lync listener http-port 2000
    #
    capwap source interface vlanif200
    #
    wlan
     security-profile name wlan-security
      security wpa2 psk pass-phrase %^%#ms[7Zm;\N"2e3w/`NzNHlj)u/NX[+F*]U1Pv.tuG%^%# aes
     ssid-profile name wlan-ssid
      ssid wlan-net
     vap-profile name wlan-vap
      forward-mode tunnel
      service-vlan vlan-id 201
      ssid-profile wlan-ssid
      security-profile wlan-security
      ucc-profile lync-service
     regulatory-domain-profile name domain1
     ap-group name ap-group1
      regulatory-domain-profile domain1
      radio 0
       vap-profile wlan-vap wlan 1
      radio 1
       vap-profile wlan-vap wlan 1
     ap-id 0 ap-mac 60de-4476-e550
      ap-name area_1
      ap-group ap-group1
      radio 0
       channel 20mhz 6
       eirp 127
      radio 1
       channel 20mhz 149
       eirp 127
    #
    return
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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