Примечания к выпуску для Cisco Cisco 2106 Wireless LAN Controller
10
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 5.0.148.0
OL-31336-01
New Features
New Features
The following new features are available in controller software release 5.0.148.0.
Note
Refer to the Cisco Wireless LAN Controller Configuration Guide, Release 5.0 for details and
configuration instructions for each of these features.
configuration instructions for each of these features.
Controller Platform Changes
•
Without any other service module installed, the Catalyst 6509 switch chassis can support up to seven
Cisco WiSMs, the Catalyst 6506 with a Supervisor 720 can support up to four Cisco WiSMs, and
any other Catalyst 6500 series switch chassis can support up to six Cisco WiSMs. If one or more
service modules are installed, the chassis can support up to a maximum of four service modules
(WiSMs included). Redundant supervisors cannot be used with these maximum configurations.
Cisco WiSMs, the Catalyst 6506 with a Supervisor 720 can support up to four Cisco WiSMs, and
any other Catalyst 6500 series switch chassis can support up to six Cisco WiSMs. If one or more
service modules are installed, the chassis can support up to a maximum of four service modules
(WiSMs included). Redundant supervisors cannot be used with these maximum configurations.
•
Without any other service module installed, the Cisco 7609 router chassis can support up to seven
Cisco WiSMs, and any other Cisco 7600 series router chassis can support up to six Cisco WiSMs.
If one or more service modules are installed, the chassis can support up to a maximum of four
service modules (WiSMs included). Redundant supervisors cannot be used with these maximum
configurations.
Cisco WiSMs, and any other Cisco 7600 series router chassis can support up to six Cisco WiSMs.
If one or more service modules are installed, the chassis can support up to a maximum of four
service modules (WiSMs included). Redundant supervisors cannot be used with these maximum
configurations.
Note
The WiSM is supported on Cisco 7600 series routers running only Cisco IOS Release
12.2(18)SXF5 or later.
12.2(18)SXF5 or later.
•
The 2000 series controllers are not supported for use with controller software release 5.0.148.0.
New Controller Features
•
AutoInstall—When a controller (without a configuration) boots up for the first time, it can use this
feature to download a configuration file from a TFTP server automatically. Once the controller is
configured by the auto-install (or auto-provisioning) process, it is automatically added to WCS.
feature to download a configuration file from a TFTP server automatically. Once the controller is
configured by the auto-install (or auto-provisioning) process, it is automatically added to WCS.
•
Coverage hole detection—In controller software release 5.0.148.0, if both the number and
percentage of failed packets exceed the values configured for Failed Packet Count and Failed Packet
Percentage (configurable through the controller CLI) for a 5-second period, the client is considered
to be in a pre-alarm condition. The controller uses this information to distinguish between real and
false coverage holes and excludes clients with poor roaming logic. A coverage hole is detected if
both the number and percentage of failed clients meet or exceed the values entered in the Min Failed
Client Count per AP and Coverage Exception Level per AP fields over a 90-second period. The
controller determines if the coverage hole can be corrected and, if appropriate, mitigates the
coverage hole by increasing the transmit power level for that specific access point.
percentage of failed packets exceed the values configured for Failed Packet Count and Failed Packet
Percentage (configurable through the controller CLI) for a 5-second period, the client is considered
to be in a pre-alarm condition. The controller uses this information to distinguish between real and
false coverage holes and excludes clients with poor roaming logic. A coverage hole is detected if
both the number and percentage of failed clients meet or exceed the values entered in the Min Failed
Client Count per AP and Coverage Exception Level per AP fields over a 90-second period. The
controller determines if the coverage hole can be corrected and, if appropriate, mitigates the
coverage hole by increasing the transmit power level for that specific access point.
•
Daylight Saving Time—Daylight Saving Time (DST) is now supported on the controller. If you
choose a timezone that uses DST when you configure the system date and time, the controller
automatically sets its system clock to reflect the time change when DST occurs. To prevent DST
from being set, you must manually set the timezone using the controller CLI.
choose a timezone that uses DST when you configure the system date and time, the controller
automatically sets its system clock to reflect the time change when DST occurs. To prevent DST
from being set, you must manually set the timezone using the controller CLI.