Specifications

Software Restart Reference Manual (MGCP/NCS Version)
Mediatrix 4100
21
Software Restart
You can initiate a software restart of the Mediatrix 4100 by using MIB parameters.
 To perform a software restart:
1. In the groupAdminMIB, locate the groupAdminMIBObjects group.
2. Set the groupSetAdmin variable to the appropriate type of restart:
• Locked: waits for the state of all lines to be locked, and then restarts. This is called a
graceful restart.
• ForceLock: restarts immediately. This is called an abrupt restart.
• Unlock: the command is discarded.
3. Set the groupReset variable to SoftReset.
The Mediatrix 4100 restarts.
Restart Behaviour
This feature affects the behaviour of the Mediatrix 4100 when it restarts.
You can instruct the Mediatrix 4100 to check its TCP/IP stack before declaring the restart successful.
This could be useful when the unit is subjected to a broadcast storm (such as a TCP/IP flood) while it is
restarting. In this case, and when the TCP/IP stack check is enabled, the unit enters into the rescue mode and
cannot be contacted through SNMP. You thus need to restart the Mediatrix 4100 manually. However, when
the TCP/IP stack check is disabled, a broadcast storm during a restart will cause the unit to continuously restart
until the storm subsides.
 To define the restart behaviour:
1. In the bootBehaviorMIB, enable the checkTcpIpStackForSuccessfulBoot variable.
When the variable is enabled, the TCP/IP stack must initialize properly to consider the restart a
success. In a flood scenario, the unit may end up in the rescue mode.
When the feature is disabled, even if the TCP/IP stack fails to initialize during a TCP/IP flood, the
restart is considered successful and the unit does not enter into the rescue mode.
Verifying the Installation
There are two ways to verify that the Mediatrix 4100 is properly connected to the IP network and is working:
 By contacting it with a SNMP Browser
 By pinging it
These two procedures assume that you know the IP address of the Mediatrix 4100 you want to verify. If the
Mediatrix 4100 does not respond, do the following:
 Verify that the LAN cable is securely connected to the Mediatrix 4100 and to the network
connector.
 Be sure that you did not connect a crossover network cable.
 Verify the state of the IP network to ensure it is not down (the LAN LED should be ON or
blinking).
 Verify that the call agent is operational.
In the Unit Manager Network Administration Manual, refer to chapter Performing Actions on Mediatrix Units,
section Restarting a Unit.