Example for Configuring Traffic Policing
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
As shown in Figure 1, the AP is directly connected to the AC. An enterprise branch needs to deploy basic WLAN services for mobile office so that branch users can access internal network resources anywhere at any time.
The enterprise network administrator needs to set the rate limit of upstream traffic on each STA associated with the AP to 2 Mbit/s and the limit of total rates of upstream traffic on all STAs associated with the VAP to 30 Mbit/s.
Configuration Roadmap
- Configure basic WLAN services so that users can connect to the wireless network.
- Set the rate for upstream packets in the traffic profile used by the AP to implement traffic policing on upstream packets on a specified STA and on all STAs associated with the VAP.
Item |
Data |
|---|---|
DHCP server |
The AC functions as a DHCP server to assign IP addresses to the STAs and AP. |
IP address pool for the AP |
10.23.100.2-10.23.100.254/24 |
IP address pool for STAs |
10.23.101.2-10.23.101.254/24 |
AC's source interface address |
VLANIF 100: 10.23.100.1/24 |
AP group |
|
Regulatory domain profile |
|
SSID profile |
|
Security profile |
|
VAP profile |
|
Traffic profile |
|
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
- 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.
- 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
- Configure the AC to communicate with the upstream device.
Configure AC uplink interfaces to transparently transmit packets of service VLANs as required and 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 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
- 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
- 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
- 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 - Configure traffic policing.
# Create the traffic profile traffic and set traffic policing parameters in the profile.
[AC-wlan-view] traffic-profile name traffic [AC-wlan-traffic-prof-traffic] rate-limit client up 2048 [AC-wlan-traffic-prof-traffic] rate-limit vap up 30720 [AC-wlan-traffic-prof-traffic] quit
# Bind the traffic profile traffic to the VAP profile wlan-vap.
[AC-wlan-view] vap-profile name wlan-vap [AC-wlan-vap-prof-wlan-vap] traffic-profile traffic Warning: This action may cause service interruption. Continue?[Y/N]y [AC-wlan-vap-prof-wlan-vap] quit - Verify the configuration.
Run the display traffic-profile name traffic command on the AC to check the traffic profile configuration. The command output shows that the uplink rate limit of a single STA is 2048 kbit/s (2 Mbit/s) and the total uplink rate limit of all STAs on a VAP is 30720 kbit/s (30 Mbit/s).
[AC-wlan-view] display traffic-profile name traffic ---------------------------------------------------- Profile ID : 1 Priority map downstream trust : DSCP User isolate mode : disable Rate limit client up(Kbps) : 2048 Rate limit client down(Kbps) : 4294967295 Rate limit VAP up(Kbps) : 30720 Rate limit VAP down(Kbps) : 4294967295 IGMP snooping : disable IGMP snooping report suppress : disable IGMP snooping max bandwith(kbps) : - IGMP snooping max user : - Traffic optimize sta bridge forward : enable Traffic optimize broadcast suppression(pps): - Traffic optimize multicast suppression(pps): - Traffic optimize unicast suppression(pps): - Traffic optimize multicast to unicast: disable Dynamic adaptive : enable Traffic remark inbound IPv4 ACL : - Traffic remark inbound IPv4 type : - Traffic remark inbound IPv4 value : - Traffic remark outbound IPv4 ACL: - Traffic remark outbound IPv4 type : - Traffic remark outbound IPv4 value: - Priority map upstream trust : 8021e CAPWAP priority upstream map mode: 802.11e map DSCP 0 map 0 1 map 8 2 map 16 3 map 24 4 map 32 5 map 40 6 map 48 7 map 56 CAPWAP priority upstream map mode: 802.11e map 802.1p 0 map 0 1 map 1 2 map 2 3 map 3 4 map 4 5 map 5 6 map 6 7 map 7 WMM priority downstream map mode: DSCP map 802.11e 0-7 map 0 8-15 map 1 16-23 map 2 24-31 map 3 32-39 map 4 40-47 map 5 48-55 map 6 56-63 map 7 WMM priority downstream map mode: 802.1p map 802.11e 0 map 0 1 map 1 2 map 2 3 map 3 4 map 4 5 map 5 6 map 6 7 map 7 --------------------------------------------------------------------------------------------- Traffic Type Direction AppliedRecord --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- ----------------------------------------------------
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 # 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 # capwap source interface vlanif100 # wlan traffic-profile name traffic rate-limit client up 2048 rate-limit vap up 30720 security-profile name wlan-security security wpa2 psk pass-phrase %^%#m"tz0f>~7.[`^6RWdzwCy16hJj/Mc!,}s`X*B]}A%^%# 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 traffic-profile traffic regulatory-domain-profile name domain1 rrm-profile name default calibrate auto-channel-select disable calibrate auto-txpower-select disable 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 type-id 19 ap-mac 60de-4476-e360 ap-sn 210235554710CB000042 ap-name area_1 ap-group ap-group1 radio 0 channel 20mhz 6 eirp 127 radio 1 channel 20mhz 149 eirp 127 # return