WMM Traffic Management

WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). is a WFA Wi-Fi Alliance. WFA is a non-profit organization that promotes Wi-Fi technology and certifies Wi-Fi products if they conform to certain standards of interoperability. specification based on the IEEE Institute of Electrical and Electronics Engineers. 802.11e 802.11e is an enhancement to the 802.11a and 802.11b specifications that enhances the 802.11 Media Access Control layer with a coordinated Time Division Multiple Access (TDMA) construct. It adds error-correcting mechanisms for delay-sensitive applications such as voice and video. The 802.11e specification provides seamless interoperability between business, home, and public environments such as airports and hotels, and offers all subscribers high-speed Internet access with full-motion video, high-fidelity audio, and VoIP. wireless QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. standard. WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). works with 802.11a 802.11a provides specifications for wireless systems. Networks using 802.11a operate at radio frequencies in the 5 GHz band. The specification uses a modulation scheme known as orthogonal frequency-division multiplexing (OFDM) that is especially well suited to use in office settings. The maximum data transfer rate is 54 Mbps., 802.11b 802.11b is a WLAN standard often called Wi-Fi and is backward compatible with 802.11. Instead of the Phase-Shift Keying (PSK) modulation method used in 802.11 standards, 802.11b uses Complementary Code Keying (CCK) that allows higher data speeds and makes it less susceptible to multipath-propagation interference. 802.11b operates in the 2.4 GHz band and the maximum data transfer rate is 11 Mbps., 802.11g 802.11g offers transmission over relatively short distances at up to 54 Mbps, compared with the 11 Mbps theoretical maximum of 802.11b standard. 802.11g employs Orthogonal Frequency Division Multiplexing (OFDM), the modulation scheme used in 802.11a, to obtain higher data speed. Computers or terminals set up for 802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g devices can be compatible within a single network., 802.11n 802.11n is a wireless networking standard to improve network throughput over the two previous standards, 802.11a and 802.11g. With 802.11n, there will be a significant increase in the maximum raw data rate from 54 Mbps to 600 Mbps with the use of four spatial streams at a channel width of 40 MHz., 802.11 802.11 is an evolving family of specifications for wireless LANs developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE). 802.11 standards use the Ethernet protocol and Carrier Sense Multiple Access with collision avoidance (CSMA/CA) for path sharing. ac, and 802.11ax physical layer standards.

WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). supports the following ACs:

• Voice
• Video
• Best effort
• Background

The following table shows the mapping of the WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). access categories to 802.1p priority values. The 802.1p priority value is contained in a two-byte QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. control field in the WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). data frame.

Table 1: WMM AC to 802.1p Priority Mapping

802.1p Priority	WMM Access Category
1	Background
2
0	Best effort
3
4	Video
5
6	Voice
7

In a non-WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). or hybrid environment, where some clients are not WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK).-capable, you can configure an SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network. with higher values for best effort and voice ACs, to allocate a higher bandwidth to clients transmitting best effort and voice traffic.

Configuring WMM for Wireless Clients

The following procedure describes how to configure WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). for wireless clients by using the WebUI:

1. Navigate to the WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. wizard.
   • Navigate to Configuration > Networks and click + or
   • Navigate to Configuration > Networks, select the WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. profile, and edit the profile as required.
2. Under Basic, click Show advanced options.
3. Under WMM, specify a Share percentage value for the following access categories, in the text box that appears before %. You can allocate a higher bandwidth for voice and video traffic than that for other types of traffic based on the network profile.
   • Background WMM—Allocates bandwidth for background traffic such as file downloads or print jobs.
   • Best effort WMM—Allocates bandwidth or best effort traffic such as traffic from legacy devices or traffic from applications or devices that do not support QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies..
   • Video WMM—Allocates bandwidth for video traffic generated from video streaming.
   • Voice WMM—Allocates bandwidth for voice traffic generated from the incoming and outgoing voice communication.
4. Click Next until Finish.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. commands configure WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). traffic management for wireless clients:

Mapping WMM ACs and DSCP Tags

The IEEE Institute of Electrical and Electronics Engineers. 802.11e 802.11e is an enhancement to the 802.11a and 802.11b specifications that enhances the 802.11 Media Access Control layer with a coordinated Time Division Multiple Access (TDMA) construct. It adds error-correcting mechanisms for delay-sensitive applications such as voice and video. The 802.11e specification provides seamless interoperability between business, home, and public environments such as airports and hotels, and offers all subscribers high-speed Internet access with full-motion video, high-fidelity audio, and VoIP. standard defines the mapping between WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). ACs and DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. tags. You can customize the mapping values between WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). ACs and DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. tags to prioritize various traffic types and apply these changes to a WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK).-enabled SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network. profile.

DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. classifies packets based on network policies and rules. The following table shows the default WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). AC Access Category. As per the IEEE 802.11e standards, AC refers to various levels of traffic prioritization in Enhanced Distributed Channel Access (EDCA) operation mode. The WLAN applications prioritize traffic based on the Background, Best Effort, Video, and Voice access categories. AC can also refer to Alternating Current, a form of electric energy that flows when the appliances are plugged to a wall socket. to DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mappings and the recommended WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). AC Access Category. As per the IEEE 802.11e standards, AC refers to various levels of traffic prioritization in Enhanced Distributed Channel Access (EDCA) operation mode. The WLAN applications prioritize traffic based on the Background, Best Effort, Video, and Voice access categories. AC can also refer to Alternating Current, a form of electric energy that flows when the appliances are plugged to a wall socket. to DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mappings.

Table 2: WMM AC-DSCP Mapping

DSCP Value	WMM Access Category
8	Background
16
0	Best effort
24
32	Video
40
48	Voice
56

By customizing WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). AC Access Category. As per the IEEE 802.11e standards, AC refers to various levels of traffic prioritization in Enhanced Distributed Channel Access (EDCA) operation mode. The WLAN applications prioritize traffic based on the Background, Best Effort, Video, and Voice access categories. AC can also refer to Alternating Current, a form of electric energy that flows when the appliances are plugged to a wall socket. mappings, all packets received are matched against the entries in the mapping table and prioritized accordingly. The mapping table contains information for upstream (client to Instant AP) and downstream (Instant AP to client) traffic.

The following procedure describes how to configure different WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). to DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping values for each WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). AC Access Category. As per the IEEE 802.11e standards, AC refers to various levels of traffic prioritization in Enhanced Distributed Channel Access (EDCA) operation mode. The WLAN applications prioritize traffic based on the Background, Best Effort, Video, and Voice access categories. AC can also refer to Alternating Current, a form of electric energy that flows when the appliances are plugged to a wall socket. when configuring an SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network. profile by using the WebUI:

1. Navigate to the WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. wizard.
   • Go to Configuration > Networks and click + or
   • Go to Configuration > Networks, select the WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. profile, and edit the profile as required.
2. Under Basic, click Show advanced options.
3. Under WMM, specify the appropriate DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping values within a range of 0–63 for the following access categories in the text box that appears after %.
   • Background WMM—DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping for the background traffic.
   • Best effort WMM—DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping for the best-effort traffic.
   • Video WMM—DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping for the video traffic.
   • Voice WMM—DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mapping for the voice traffic.
4. Click Next until Finish.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. commands configure DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. settings on an SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.:

You can configure up to 8 DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. mappings values within the range of 0-63. You can also configure a combination of multiple values separated by a comma, for example, wmm-voice-dscp 46,44,42,41.

Configuring WMM U-APSD

To extend the battery life and enable power saving on WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. clients, Instant APs support U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. for the clients that support WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK).. The U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. or the WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). Power Save feature is enabled by default on all SSIDs Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.. When configured, U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. enables a client station to retrieve the unicast QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. traffic buffered in the Instant AP by sending trigger frames. During the association or reassociation with the Instant AP, the station indicates the WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). Access Categories for which U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. is enabled. In the current release, Instant APs support U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. on all WMM Wi-Fi Multimedia. WMM is also known as WME. It refers to a Wi-Fi Alliance interoperability certification, based on the IEEE 802.11e standard. It provides basic QoS features to IEEE 802.11 networks. WMM prioritizes traffic according to four ACs: voice (AC_VO), video (AC_VI), best effort (AC_BE), and background (AC_BK). ACs.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. commands disable U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. on an SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.:

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. commands re-enable U-APSD Unscheduled Automatic Power Save Delivery. U-APSD is a part of 802.11e and helps considerably in increasing the battery life of VoWLAN terminals. on an SSID Service Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.: