Cisco UNIFIED 9971, Руководство по развертыванию

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Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
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Fast Secure Roaming (FSR)
CCKM is the recommended deployment model for all environment types where frequent roaming occurs.
CCKM enables fast secure roaming and limits the off-network time to keep audio gaps at a minimum when on call.
802.1x authentication is required in order to utilize CCKM.
802.1x without CCKM can introduce delay during roaming due to its requirement for full re-authentication. WPA and WPA2
introduce additional transient keys and can lengthen roaming time.
CCKM centralizes the key management and reduces the number of key exchanges.
When CCKM is utilized, roaming times can be reduced from 400-500 ms to less than 100 ms, where that transition time from
one access point to another will not be audible to the user.
As of the 9.1(1) release, the Cisco Unified IP Phone 9971 supports CCKM with WPA2 (AES or TKIP), WPA (TKIP or AES)
and 802.1x (WEP) authentication, where WPA2 (AES) with CCKM is recommended.
Authentication Key Management Encryption
EAP-FAST 802.1x, WPA, WPA2 AES, TKIP, WEP (40/64 or 104/128 bit)
LEAP 802.1x, WPA, WPA2 AES, TKIP, WEP (40/64 or 104/128 bit)
AKM 802.1x, WPA, WPA2 AES, TKIP, WEP (40/64 or 104/128 bit)
CCKM was not supported with WPA2 in releases prior to 9.1(1).
WPA Version Cipher Prior to 9.1(1) 9.1(1)
WPA TKIP Supported Supported
AES Not Supported Supported
WPA2 TKIP Not Supported Supported
AES Not supported Supported
EAP and User Database Compatibility
The following chart displays the EAP and database configurations supported by the Cisco Unified IP Phone 9971.
Database Type LEAP
EAP-FAST
(Phase Zero)
Cisco ACS Yes Yes
Windows SAM Yes Yes
Windows AD Yes Yes
LDAP No No