User`s manual

H.323 User's Manual 15. SNMP-Based Management
Version 5.0 365 December 2006
 The manger also has access to the STUN client configuration:
audioCodes(5003).acProducts(9).acBoardMibs(10).acSystem(10).acSystemConfigura
tion(1).acSysNetworkConfig(3).acSysNATTraversal(6).acSysSTUN(21).
 acNATTraversalAlarm: When the NAT is placed in front a device that is identified as a
symmetric NAT, this alarm is raised. It is cleared when a non-symmetric NAT or no
NAT replace the symmetric one.
15.11 SNMP Administrative State Control
15.11.1 Node Maintenance
Node maintenance for the Mediant 1000 is provided by an SNMP interface. The
acBoardMIB provides two parameters for graceful and forced shutdowns of the Mediant
1000:
 acgwAdminState
 acgwAdminStateLockControl
The acgwAdminState is used either to request (set) a shutdown (0), undo shutdown (2), or
to view (get) the gateway condition (0 = locked; 1 = shutting down; 2 = unlocked).
The acgwAdminStateLockControl is used to set a time limit (in seconds) for the shutdown
where 0 means shutdown immediately (forced), -1 means no time limit (graceful), and x
where x>0 indicates a time limit in seconds (timed limit is considered a graceful shutdown).
Note: The acgwAdminStateLockControl must be set first followed by the
acgwAdminState.
15.11.2 Graceful Shutdown
acgwAdminState is a read-write MIB object. When a get request is sent for this object, the
agent returns the board's current administrative state.
The possible values received on a Get request include the following:
 locked(0): the board is locked
 shuttingDown(1): the board is currently performing a graceful lock
 unlocked(2): the board is unlocked
On a Set request, the manager supplies one of the following desired administrative states:
 locked(0)
 unlocked(2)
When the board changes to either shuttingDown or locked state, an adminStateChange
alarm is raised. When the board changes to an unlocked state, the adminStateChange
alarm is cleared.
Before setting acgwAdminState to perform a lock, acgwAdminStateLockControl should be
set first to control the type of lock that is performed. The possible values for the
acgwAdminStateLockControl include the following:
 1 = Perform a graceful lock. Calls are allowed to complete. No new calls are allowed
to be originated on this device.
 0 = Perform a forced lock. Calls are immediately terminated.
 Any number greater than 0 = Time in seconds before the graceful lock turns into a
forced lock.