Example for Configuring WLAN-based E-schoolbag
Service Requirements
E-schoolbag is a digital teaching method. In a class, teachers and students use smart terminals such as PCs, tablets, and mobile phones to participate in teaching and learning activities online.
A teacher can teach students in multiple classrooms without space limitation.
To ensure successful teaching activities, three-radio APs are used to deploy basic WLAN services to support access of many students and provide sufficient bandwidth.
Networking Requirements
- AC networking mode: Layer 2 bypass mode
- DHCP deployment mode:
- The AC functions as a DHCP server to assign IP addresses to APs.
- The aggregation switch (SwitchB) functions as a DHCP server to assign IP addresses to STAs.
- Service data forwarding mode: direct forwarding
Data Planning
Item |
Data |
---|---|
Management VLAN for APs |
VLAN 100 |
Service VLAN for STAs |
VLAN 101 |
DHCP server |
The AC functions as a DHCP server to assign IP addresses to APs. SwitchB functions as a DHCP server to assign IP addresses to STAs. The default gateway address of STAs is 10.23.101.2. |
IP address pool for APs |
10.23.100.2-10.23.100.254/24 |
IP address pool for STAs |
10.23.101.3-10.23.101.254/24 |
AC's source interface address |
VLANIF 100: 10.23.100.1/24 |
AP group |
|
Regulatory domain profile |
|
SSID profile |
|
Security profile |
|
VAP profile |
|
RRM profile |
|
2G radio profile |
|
5G radio profile |
|
Traffic profile |
|
Configuration Roadmap
- Configure network interworking of the AC, APs, and other network devices.
- Configure the APs to go online.
- Create an AP group and add APs that require the same configuration to the group for unified configuration.
- Configure AC system parameters, including the country code and source interface used by the AC to communicate with the APs.
- Configure the AP authentication mode and import the APs offline to allow the APs to go online.
- Configure WLAN service parameters for STAs to access the WLAN.
- Adjust network parameters for e-schoolbag.
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.
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
- Configure the network devices.# Add GE0/0/1 and GE0/0/2 on SwitchA to VLAN 100 and VLAN 101. The default VLAN of GE0/0/1 is VLAN 100.
<HUAWEI> system-view [HUAWEI] sysname SwitchA [SwitchA] vlan batch 100 101 [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 100 101 [SwitchA-GigabitEthernet0/0/1] port-isolate enable [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 100 101 [SwitchA-GigabitEthernet0/0/2] quit
# Add GE0/0/1 on SwitchB (aggregation switch) to VLAN 100 and VLAN 101, GE0/0/2 to VLAN 100, and GE0/0/3 to VLAN 101.<HUAWEI> system-view [HUAWEI] sysname SwitchB [SwitchB] vlan batch 100 101 [SwitchB] interface gigabitethernet 0/0/1 [SwitchB-GigabitEthernet0/0/1] port link-type trunk [SwitchB-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 101 [SwitchB-GigabitEthernet0/0/1] quit [SwitchB] interface gigabitethernet 0/0/2 [SwitchB-GigabitEthernet0/0/2] port link-type trunk [SwitchB-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 [SwitchB-GigabitEthernet0/0/2] quit [SwitchB] interface gigabitethernet 0/0/3 [SwitchB-GigabitEthernet0/0/3] port link-type trunk [SwitchB-GigabitEthernet0/0/3] port trunk allow-pass vlan 101 [SwitchB-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
- 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.
# Add GE0/0/1 on the AC to VLAN 100.<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
- Configure the DHCP servers to assign IP addresses to APs and STAs.# On the AC, configure VLANIF 100 to assign IP addresses to APs.
[AC] dhcp enable [AC] interface vlanif 100 [AC-Vlanif100] ip address 10.23.100.1 24 [AC-Vlanif100] dhcp select interface [AC-Vlanif100] quit
# On SwitchB, configure VLANIF 101 to assign IP addresses to STAs and set the default gateway address of STAs to 10.23.101.2.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.
[SwitchB] dhcp enable [SwitchB] interface vlanif 101 [SwitchB-Vlanif101] ip address 10.23.101.1 24 [SwitchB-Vlanif101] dhcp select interface [SwitchB-Vlanif101] dhcp server gateway-list 10.23.101.2 [SwitchB-Vlanif101] quit
- 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 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.
[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 [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 successfully.[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 AirEngine6761-21T nor 0 10S - ----------------------------------------------------------------------------------------------------------------------------- Total: 1
- 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 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 VAP profile wlan-net to the AP group and apply the profile to all radios of the AP.[AC-wlan-view] ap-group name ap-group1 [AC-wlan-ap-group-ap-group1] vap-profile wlan-net wlan 1 radio all [AC-wlan-ap-group-ap-group1] quit
- Adjust network parameters for e-schoolbag.
- Configure the AP channel and power.
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 settings of the AP channel and power in this example are for reference only. You need to configure the AP channel and power based on the actual country code and network planning.
# Configure the channel and power for radio 0.[AC-wlan-view] ap-id 0 [AC-wlan-ap-0] radio 0 [AC-wlan-rrm-prof-default] calibrate auto-channel-select disable [AC-wlan-rrm-prof-default] 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
# Configure the channel and power for radio 1.[AC-wlan-ap-0] radio 1 [AC-wlan-rrm-prof-default] calibrate auto-channel-select disable [AC-wlan-rrm-prof-default] 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
# Configure the channel and power for radio 2.[AC-wlan-ap-0] radio 2 [AC-wlan-rrm-prof-default] calibrate auto-channel-select disable [AC-wlan-rrm-prof-default] calibrate auto-txpower-select disable [AC-wlan-radio-0/2] channel 20mhz 157 Warning: This action may cause service interruption. Continue?[Y/N]y [AC-wlan-radio-0/2] eirp 127 [AC-wlan-radio-0/2] quit [AC-wlan-ap-0] quit
- Verify the configuration.
The AC automatically delivers WLAN service configuration to the AP. After the service configuration is complete, run the display vap ssid wlan-net command. If Status in the command output is displayed as ON, the VAPs have been successfully created on AP radios.
[AC-wlan-view] display vap ssid wlan-net WID : WLAN ID -------------------------------------------------------------------------------- AP ID AP name RfID WID BSSID Status Auth type STA SSID -------------------------------------------------------------------------------- 0 area_1 0 1 60DE-4476-E360 ON WPA/WPA2-PSK 0 wlan-net 0 area_1 1 1 60DE-4476-E370 ON WPA/WPA2-PSK 0 wlan-net 0 area_1 2 1 60DE-4476-E380 ON WPA/WPA2-PSK 0 wlan-net ------------------------------------------------------------------------------- Total: 3
Connect STAs to the WLAN with SSID wlan-net and enter the password a1234567. Run the display station ssid wlan-net command on the AC. The command output shows that the STAs are connected to the WLAN wlan-net.
[AC-wlan-view] display station ssid wlan-net Rf/WLAN: Radio ID/WLAN ID Rx/Tx: link receive rate/link transmit rate(Mbps) --------------------------------------------------------------------------------- STA MAC AP ID Ap name Rf/WLAN Band Type Rx/Tx RSSI VLAN IP address --------------------------------------------------------------------------------- e019-1dc7-1e08 0 area_1 1/1 5G 11n 46/59 -68 101 10.23.101.254 --------------------------------------------------------------------------------- Total: 1 2.4G: 0 5G: 1
Configuration Files
SwitchA configuration file
# sysname SwitchA # vlan batch 100 to 101 # interface GigabitEthernet0/0/1 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 to 101 port-isolate enable group 1 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 100 to 101 # return
SwitchB configuration file
# sysname SwitchB # vlan batch 100 101 # dhcp enable # interface Vlanif101 ip address 10.23.101.1 255.255.255.0 dhcp select interface dhcp server gateway-list 10.23.101.2 # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 100 to 101 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 100 # interface GigabitEthernet0/0/3 port link-type trunk port trunk allow-pass vlan 101 # return
Router configuration file
# sysname Router # vlan batch 101 # interface Vlanif101 ip address 10.23.101.2 255.255.255.0 # interface GigabitEthernet1/0/0 port link-type trunk port trunk allow-pass vlan 101 # return
AC configuration file
# sysname AC # vlan batch 100 101 # dhcp enable # interface Vlanif100 ip address 10.23.100.1 255.255.255.0 dhcp select interface # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 100 # capwap source interface vlanif100 # wlan traffic-profile name wlan-traffic rate-limit client up 4000 rate-limit client down 4000 igmp-snooping enable traffic-optimize multicast-unicast enable security-profile name wlan-net security wpa-wpa2 psk pass-phrase %^%#wQ}eV*m'Y#f6Mj@h#DxTLrKaYm|)pBm@w$(jpeqE%^%# aes ssid-profile name wlan-net ssid wlan-net max-sta-number 128 vap-profile name wlan-net service-vlan vlan-id 101 ssid-profile wlan-net security-profile wlan-net traffic-profile wlan-traffic regulatory-domain-profile name default rrm-profile name wlan-rrm airtime-fair-schedule enable dynamic-edca enable radio-2g-profile name wlan-radio2g dot11bg basic-rate 6 9 12 18 24 36 48 54 beacon-interval 160 guard-interval-mode short multicast-rate 11 rrm-profile wlan-rrm rts-cts-threshold 1400 rts-cts-mode rts-cts radio-5g-profile name wlan-radio5g beacon-interval 160 guard-interval-mode short multicast-rate 6 rrm-profile wlan-rrm rts-cts-threshold 1400 rts-cts-mode rts-cts ap-group name ap-group1 radio 0 radio-2g-profile wlan-radio2g vap-profile wlan-net wlan 1 radio 1 radio-5g-profile wlan-radio5g vap-profile wlan-net wlan 1 radio 2 radio-5g-profile wlan-radio5g vap-profile wlan-net wlan 1 ap-id 0 type-id 60 ap-mac 60de-4476-e360 ap-sn 210235554710CB000042 ap-name area_1 ap-group ap-group1 radio 0 channel 20mhz 6 eirp 127 calibrate auto-channel-select disable calibrate auto-txpower-select disable radio 1 channel 20mhz 149 eirp 127 calibrate auto-channel-select disable calibrate auto-txpower-select disable radio 2 channel 20mhz 157 eirp 127 calibrate auto-channel-select disable calibrate auto-txpower-select disable # return