cisco 1242 dtim wmm

Choosing “Mixed 802.11g, 802.11b and 802.11n” and using WMM function are forbidden
for wireless mode.

When client devices receive a beacon that contains a DTIM, they normally wake up to check for pending packets. Longer intervals between DTIMs let clients sleep longer and preserve power. Conversely, shorter DTIM periods reduce the delay in receiving packets but use more battery power because clients wake up more often.

The default beacon rate is 2, which means that every other beacon contains a DTIM. Enter a beacon rate between 1 and 100.

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/12-3_7_JA/configuration/guide/i1237sc/s37ssid.html

WMM is in QoS , 

QoS is disabled by default (however, the radio interface always honors tagged 802.1P packets even when you have not configured a QoS policy). This section describes how to configure QoS on your access point. It contains this configuration information:

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/12-4_3g_JA/configuration/guide/ios1243gjaconfigguide/s43qos.html

胖AP、瘦AP、雲端AP Lightweight to Autonomous

於是，將無線基地臺的管理功能集中，統一由中央控制器來提供管理功能的概念──Thin AP架構，就因應而生。因為無線AP本身不負責連線管理等使用政策，功能變精簡了，可說是瘦AP，相對地傳統的無線AP也就是胖AP（Fat AP）了。透過本期企業採購大特輯的產品測試，你就可以了解目前Thin AP的管理方式。

Table 2. Product Specifications for Cisco Aironet 1240AG Series Access Points

https://www.cisco.com/c/dam/assets/prod/wireless/wireless-compliance-tool/index.html

Regulatory Domain	Access Point Platform	Certified Products
Hong Kong	-N	Controller-based	AIR-CAP702I   AIR-RM3000AC DNLS: DOMAIN NO LONGER SUPPORTED
Hong Kong	-S	Controller-based	AIR-AP1800S   AIR-CAP702W   AIR-CAP2702   AIR-CAP3702   AIR-CAP3702P   AIR-AP1832   AIR-AP1852   AIR-AP1810W   AIR-OEAP1810   AIR-AP1800I   AIR-CAP1702   AIR-AP1815I   AIR-AP2802I   AIR-AP2802E   AIR-AP3802I   AIR-AP3802E   AIR-AP3802P   AIR-VBLE1   AIR-RM3010L   AIR-AP4800
Hong Kong	-S	Outdoor & Industrial	AIR-AP1572IC   AIR-CAP1532I   AIR-AP1542D   AIR-AP1542I   AIR-AP1562D   AIR-AP1562I   AIR-AP1562E   AIR-CAP1532E   AIR-AP1572EC   AIR-AP1572EAC   AIR-CAP1552H   AIR-CAP1552S   AIR-CAP1552WU   IW3702-2E-x-K9   IW3702-4E-x-K9
Hong Kong	-N	Standalone	AIR-SAP702I
Hong Kong	-UX	Universal	AIR-AP702I   AIR-AP702W   AIR-AP1602   AIR-AP2602   AIR-AP3602   AIR-AP2702   AIR-AP3702   AIR-AP1532   IW3702-2E-UXK9   IW3702-4E-UXK9 Importer must obtain approvals.

Item	Specification
Part Number for Individual Access Points	AIR-AP1242AG-x-K9 AIR-LAP1242AG-x-K9 Regulatory domains: (x = regulatory domain) • A = FCC • C = China • E = ETSI • I = Israel • J = Japan • K = Korea • N = North America (excluding FCC) • P = Japan2 • S = Singapore • T = Taiwan

• k9w7 – autonomous IOS
• k9w8 – full lightweight IOS (this is what is bundled in the WLC .aes image, and is factory installed on “mesh” APs)
• rcvk9w8 – lightweight recovery image – this is factory installed on lightweight APs, unless a “mesh” image is specified; it lacks radio firmware