Cisco 7921G Administration Guide - Page 114

Using System Settings Chapter 4 Using the Cisco Unified Wireless IP Phone 7921G Web Pages Table 4-9 AP Details Report (continued) Field Description Background AC Access Category information for each AC: Best Effort AC Video AC Voice AC • Admission Control Required-If yes, admission control must be used prior to transmission using the access parameters specific for this AC. • AIFSN-Number of slots after an SIFS duration a non-AP STA should defer before invoking a backoff or starting a transmission. • ECWMIN-Encodes value of CWmin in an exponent form to provide the minimum amount of time in a random backoff. • ECWMAX-Encodes value of CWmax in an exponent form to provide the maximum amount of time in a random backoff. • TXOpLimit-Interval of time in which a particular quality of service (QoS) station has the right to initiate frame exchange sequences onto the wireless medium. Channels A list of supported channels (from the country IE). Power Maximum transmit power in dBm permitted for that channel. Warning messages (in red at the bottom) The first AP in the list (reference AP) is compared against the values recommended by Cisco, the differences are reported as warnings, and warning messages appear at the bottom of this report. All other APs are compared against the reference AP for consistency. 4-44 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01