SMC Networks SMCWBR11S-3GN manual Wi-Fi Multimedia Settings

CHAPTER 7 Wireless Configuration

Advanced Settings

◆TX Burst — A performance enhancement that transmits a number of data packets at the same time when the feature is supported by compatible clients. (Default: Enabled)

◆Packet Aggregate — A performance enhancement that combines data packets together when the feature is supported by compatible clients. (Default: Enabled)

WI-FIMULTIMEDIA The Mini 3G Broadband Router implements Quality of Service (QoS) using the Wi-Fi Multimedia (WMM) standard. Using WMM, the access point is able to prioritize traffic and optimize performance when multiple applications compete for wireless network bandwidth at the same time. WMM employs techniques that are a subset of the developing IEEE 802.11e QoS standard and it enables access points to interoperate with both WMM-enabled clients and other devices that may lack any WMM functionality.

WMM defines four access categories (ACs): voice, video, best effort, and background. These categories correspond to traffic priority levels and are mapped to IEEE 802.1D priority tags (see Table 3). The direct mapping of the four ACs to 802.1D priorities is specifically intended to facilitate interoperability with other wired network QoS policies. While the four ACs are specified for specific types of traffic, WMM allows the priority levels to be configured to match any network-wide QoS policy. WMM also specifies a protocol that access points can use to communicate the configured traffic priority levels to QoS-enabled wireless clients.

Table 3: WMM Access Categories

Access	WMM	Description	802.1D
Category	Designation		Tags
AC_VO (AC3)	Voice	Highest priority, minimum delay. Time-sensitive	7, 6
		data such as VoIP (Voice over IP) calls.
AC_VI (AC2)	Video	High priority, minimum delay. Time-sensitive	5, 4
		data such as streaming video.
AC_BE (AC0)	Best Effort	Normal priority, medium delay and throughput.	0, 3
		Data only affected by long delays. Data from
		applications or devices that lack QoS
		capabilities.
AC_BK (AC1)	Background	Lowest priority. Data with no delay or	2, 1
		throughput requirements, such as bulk data
		transfers.

The Wi-Fi Multimedia section on the Wireless Settings Advanced page allows you to enable WMM and set detailed QoS parameters.

Figure 41: Wi-Fi Multimedia Settings

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