Example for Configuring Optimization for Voice and Video Services
Networking Requirements
Enterprise users can access the network through WLANs, which is the basic requirement of mobile office. Furthermore, users' services are not affected during roaming in the coverage area.
Voice, video, and data services are transmitted on the WLAN. The administrator requires that voice and video services of QQ and WeChat have a higher priority to ensure good user experience in these QQ and WeChat services.
Data Planning
Item |
Data |
|---|---|
AP group |
|
VAP Profile |
|
2G radio profile |
|
5G radio profile |
|
RRM profile |
|
SAC profile |
|
Voice and video optimization |
|
Configuration Roadmap
- Enable the SAC function.
- Configure optimization for voice and video services so that these QQ and WeChat services have a higher priority than data services.
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
- Enable the security engine.
After the security engine is enabled, the system automatically loads the default signature database.
# Choose . The Attack Defense page is displayed.
# Set Security Engine to ON. Click OK.
- # Create an SAC profile and bind it to the VAP profile mapping the AP group ap-group1.
# Choose .
# In the AP group list, click the AP group name ap-group1. Click
next to VAP Configuration and
next to wlan-net, and select SAC Profile.
# Click SAC Profile and enter wlan-sac in Profile name. Click OK. The SAC Profile page is displayed.
# Click OK. In the dialog box that is displayed, click OK.
- Enable optimization for voice and video services on QQ and WeChat.
# Choose . The Voice & Video Optimization page is displayed.
# Set Voice optimization and Video optimization to ON.
# Set the applications' Voice optimization and Video optimization to OFF except qq and weixin.
# Click Apply. In the dialog box that is displayed, click OK.
By default, dynamic optimization for voice and video services is enabled for all applications in Application Detection Optimization List. To modify the status of the function for an application, select the application and set Voice Detection Optimization and Video Detection Optimization to ON or OFF.
- Enable the multimedia air interface optimization function.
# Choose .
# In the AP group list, click the AP group name ap-group1. Click
next to Radio Management and
next to Radio 0.
# Click
next to 2G Radio Profile and select RRM Profile. Click Create, enter wlan-rrm in Profile name, and then click OK. The RRM Profile configuration page is displayed.
# On the Advanced Configuration tab, disable Dynamic EDCA and enable Multimedia air interface optimization.
# Click Apply. In the dialog box that is displayed, click OK.
# Click
next to Radio 0 and
next to 5G Radio Management, and select RRM Profile. The RRM profile configuration page is displayed.
# Click the drop-down list box next to RRM Profile and select wlan-rrm.
# Click Apply. In the dialog box that is displayed, click OK.
- Verify the configuration.
- Normal voice and video communication of QQ and WeChat ensures good user experience in voice and video services of QQ and WeChat.
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