QoS Profile
When you add an SSID to a network, you can assign a quality of service (QoS) profile to that SSID. The QoS profile helps to set up different QoS parameters for voice, video, data wireless networks, or guest/employee wireless networks.
FortiLAN Cloud transfers the QoS configuration parameters to each FortiAP, which then interprets the values and enforces the QoS.
Prerequisites
Complete the Managing Networks on FortiLAN Cloud procedure.
- On the FortiLAN Cloud Home page, select the network to which you want to add the QoS profile.
- In the Menu bar, navigate to Configuration > Operation Profiles > QoS Profile.
- Click Add QoS Profile.
- Complete the following fields:
Name
The name you want to give to the QoS profile.
Comment
A description of the QoS profile or any other text for this profile. This field is optional.
Uplink
The maximum uplink bandwidth for each FortiAP radio, defined by the SSID.
Here is an SSID example (with two radios) and an uplink value of 100000 Kbps:
- 10 stations are connected to the Guest SSID on 2.4 GHz (radio 1): The total maximum uplink bandwidth of the stations connecting to that Guest SSID is 100000 Kbps.
- 20 stations are connected to the Guest SSID on 5 GHz (radio 2): The total maximum uplink bandwidth of the stations connecting to that Guest SSID is 100000 Kbps.
The range is from 0 to 2097152 Kbps (or approximately 2 Gbps). The default is 0, which means there is no restriction.
Downlink
The maximum downlink bandwidth for each FortiAP radio, defined by the SSID.
Here is an SSID example (with two radios) and a downlink value of 100000 Kbps:
- 10 stations are connected to the Guest SSID on 2.4 GHz (radio 1): The total maximum downlink bandwidth of the stations connecting to that Guest SSID is 100000 Kbps.
- 20 stations are connected to the Guest SSID on 5 GHz (radio 2): The total maximum downlink bandwidth of the stations connecting to that Guest SSID is 100000 Kbps.
The range is from 0 to 2097152 Kbps. The default is 0, which means there is no restriction.
Station Uplink
The maximum uplink bandwidth for each station in the SSID.
The range is from 0 to 2097152 Kbps. The default is 0, which means there is no restriction.
Station Downlink
The maximum downlink bandwidth for each station in the SSID.
The range is from 0 to 2097152 Kbps. The default is 0, which means there is no restriction.
Burst
When you enable the burst parameter on the SSID, the first couple of packets have a large buffer to upload and download after the station connects. After that, the station traffic returns to normal.
By default, the Burst checkbox is unselected.
WMM
QoS WiFi Multi-Media (WMM) enables priority marking of data packets from different applications and preserving these markings by translating them into DSCP values when forwarding them upstream and downstream. The priority is set between four access categories; voice, video, best effort, and background.
The applications that require improved throughput and performance are inserted in queues with higher priority. WMM maintains the priority of these applications over others which are less time critical.
You can customize the priority markings for various traffic types and apply these changes to WMM-enabled SSID profiles. All configurations are disabled by default.
Note: This feature is supported with FOS 6.2.0 and above and requires a FortiAP-S or FortiAP-W2 device.
- WMM UAPSD: The Unscheduled Automatic Power Save Delivery (UAPSD) enables the power save mechanism.
- Call Admission Control: Enable this option to regulate voice traffic. Specify the Call Capacity, the maximum number of concurrent VoIP calls allowed. The valid range is 0 – 60 and default is 10.
- Bandwidth Admission Control: Enable this option to limit traffic bandwidth usage. Specify the Bandwidth Capacity, the bandwidth usage per second. The valid range is 0 – 600000 kbps and default is 2000 kbps.
Configure the Call Admission Control and Bandwidth Admission Control parameters when creating a Platform profile.
Specify the appropriate DSCP values for downstream (LAN to WLAN) traffic. You can map one or more (up to 16) DSCP values into the following access categories. For example, DSCP values 48 and 56 (and even other non-standard values used in your network) can be mapped into the WMM access category - Voice.
- DSCP Voice Mapping: DSCP mapping for the voice traffic.
- DSCP Video Mapping: DSCP mapping for the video traffic.
- DSCP Best Effort Mapping: DSCP mapping for the best-effort traffic.
- DSCP Background Access Mapping: DSCP mapping for the background traffic.
Specify the appropriate DSCP values for upstream (WLAN to LAN) traffic. You can mark the following access categories with appropriate DSCP values. For example, DSCP value 48 can be used to mark the WMM access category - Voice.
- DSCP Voice AC: DSCP mapping for the voice traffic.
- DSCP Video AC: DSCP mapping for the video traffic.
- DSCP Best Effort AC: DSCP mapping for the best-effort traffic.
- DSCP Background AC: DSCP mapping for the background traffic.
- To complete the addition of the QoS profile, click Apply.