Cisco Cisco Aironet 350 Access Points Notas de publicación
3
Automatic Return to Primary Authentication Server
OL-2434-02
Installation Notes
The following new SNMP MIB objects have been added to keep the index values of the currently
selected authentication servers:
selected authentication servers:
•
awcAaaServerDot1xCurrent: index of current server for IEEE 802.1x authentication functions
•
awcAaaMacAddrAuthCurrent: index of current server for MAC address authentication functions
Automatic Return to Primary Authentication Server
An administrator can configure a time period specifying how often the access point should check if the
primary authentication server is reachable again.
primary authentication server is reachable again.
A new SNMP MIB object, awcAaaServerPrimaryReattemptPeriod, has been added to hold this value.
The default value is zero. When the value is set to zero, the access point never attempts to return to the
primary server; therefore, the default behavior can be the same as prior releases of access point software.
The default value is zero. When the value is set to zero, the access point never attempts to return to the
primary server; therefore, the default behavior can be the same as prior releases of access point software.
Initially, when an access point needs to contact an authentication server for one of its authentication
functions, it selects the primary server and uses it as long as it is reachable. When the access point detects
that the primary server is not reachable, it notes the current system time as primaryServerAttemptTime
and selects the next server in sequence. It shifts to that server and uses it as long as it is reachable.
functions, it selects the primary server and uses it as long as it is reachable. When the access point detects
that the primary server is not reachable, it notes the current system time as primaryServerAttemptTime
and selects the next server in sequence. It shifts to that server and uses it as long as it is reachable.
When an access point needs to send an access request and the currently selected server is not the primary
server for the function requested, it attempts to contact the primary server if the server has not been
contacted for longer than the value of awcAaaServerPrimaryReattmptPeriod. If the access point
receives a response within the server timeout period, it marks the primary authentication server as the
currently selected server and uses it for future authentication purposes. Otherwise, the access point
updates the primaryServerAttemptTime as the current time and continues to use the previously
selected server for authentication functions.
server for the function requested, it attempts to contact the primary server if the server has not been
contacted for longer than the value of awcAaaServerPrimaryReattmptPeriod. If the access point
receives a response within the server timeout period, it marks the primary authentication server as the
currently selected server and uses it for future authentication purposes. Otherwise, the access point
updates the primaryServerAttemptTime as the current time and continues to use the previously
selected server for authentication functions.
Installation Notes
You can find the latest release of access point and bridge firmware at this URL:
Portions of Configuration Might be Lost During Upgrade from 11.21 to 11.23T
If an access point or bridge configuration contains host names (ftp.cisco.com, for example) instead of IP
addresses in one or more configuration fields, the access point or bridge might lose some or all of its
configuration when you upgrade the firmware from 11.21 to 11.23T. Use IP addresses instead of host
names in all configuration fields when upgrading from 11.21 to 11.23T.
addresses in one or more configuration fields, the access point or bridge might lose some or all of its
configuration when you upgrade the firmware from 11.21 to 11.23T. Use IP addresses instead of host
names in all configuration fields when upgrading from 11.21 to 11.23T.
Installation in Environmental Air Space
Cisco Aironet 350 Series Bridges and metal-case access points are suitable for use in environmental air
space in accordance with Section 300-22(c) of the National Electrical Code.
space in accordance with Section 300-22(c) of the National Electrical Code.
Caution
The Cisco Aironet power injector has a smaller operating temperature range (32 to 104
o
F; 0 to 40
o
C)
than the 350 series bridge and metal-case access point. The power injector is not intended for use in
extremely high or low temperatures or in environmental air spaces, such as above suspended ceilings.
extremely high or low temperatures or in environmental air spaces, such as above suspended ceilings.