Interband Roaming; Power Management - Cisco 8861 Deployment Manual

802.11r (FT)
802.11r (FT)
802.11r (FT)
CCKM
CCKM
CCKM
CCKM
Note: If deploying the Cisco IP Phone 8861 or 8865 into an environment where other Wi-Fi phone models exist but those Wi-
Fi phone models do not support 802.11r (FT), then should be able to use that same pre-existing SSID for the Cisco IP Phone
8861 or 8865, but is recommended to enable 802.11r (FT) utilizing the Over the Air method on top of the other pre-existing key
management types (e.g. 802.1x, CCKM, or 802.1x + CCKM); assuming the other Wi-Fi phone models can interoperate in an
802.11r (FT) enabled network while not utilizing 802.11r (FT).

Interband Roaming

The Cisco IP Phone 8861 and 8865 default to Auto for the frequency band mode, which enables interband roaming and
currently gives preference to the strongest signal. Typically this will give preference to 2.4 GHz over 5 GHz due to 2.4 GHz
having a stronger signal in general assuming the power levels are the same.
At power on, the Cisco IP Phone 8861 and 8865 will scan all 2.4 and 5 GHz channels when in Auto mode, then attempt to
associate to an access point for the configured network if available.
If configured for 5 GHz only or 2.4 GHz only mode, then just those channels are scanned.
It is recommended to perform a spectrum analysis to ensure that the desired bands can be enabled in order to perform interband
roaming.

Power Management

The power supply (CP-PWR-CUBE-4=) is required to enable the Cisco IP Phone 8861 or 8865 for wireless LAN mode, as there
is no internal battery.
Wireless LAN is automatically disabled temporarily when Ethernet is connected to the Cisco IP Phone 8861 or 8865, but will
be automatically re-enabled once Ethernet is disconnected if Wireless LAN was enabled previously.
The Cisco IP Phone 8861 and 8865 primarily use active mode (no Wi-Fi power save) when in idle or on call.
Null Power Save (PS-NULL) frames are utilized for off-channel scanning.
Delivery Traffic Indicator Message (DTIM)
It is recommended to set the DTIM period to 2 with a beacon period of 100 ms.
Since the Cisco IP Phone 8861 and 8865 use active mode, the DTIM period will not be used to schedule wake up periods to
check for broadcast and multicast packets as well as any unicast packets.
Cisco IP Phone 8861 and 8865 Wireless LAN Deployment Guide
EAP-TLS WPA2
PEAP-GTC WPA2
PEAP-MSCHAPv2 WPA2
EAP-FAST WPA2, WPA
EAP-TLS WPA2, WPA
PEAP-GTC WPA2, WPA
PEAP-MSCHAPv2 WPA2, WPA
AES
AES
AES
AES, TKIP
AES, TKIP
AES, TKIP
AES, TKIP
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