User's Manual

Figure 115: Monitoring the state of the TCP server
If the SMTP Server is stopped by an administrator, the socket no longer is "listening" on port
25 and the message "Mail Server is down" is sent as an SNMPv1 trap to the configured SNMP
destination.
Definition of a TCP client
A sample definition of a connection is shown in the following figure. The definition is very similar
to the definition of a TCP Server, but the state is "established" instead of "listening".
Figure 116: Definition of a TCP client
The definition of a connection contains the following parameters.
• Define the parameter id which defines the unique identifier of the monitored item. The
value Messenger@Net - eCAP in the example defines the connection. You can specify a
value of your choice. Avaya recommends that you use a name meaningful to you.
• Define the parameter "port" which defines the port number. For example, the value 3102
specifies a specific port used by DECT Messenger.
• Define the parameter "state". For monitoring TCP Clients, define the value
"established".
It is expected that a TCP Server is always up and running and is in state "connected" on
port 3102 with a TCP Client in the local system that runs the eFR monitoring process.
Note:
The specified port is the port on the TCP Server.
In a TCP client/server connection, a TCP Server listens on a specific port. A client can reside
on the same system or on another system, and make a socket connection by specifying the
Module - eFR
168 DECT Messenger Installation and Commissioning — Book 1 March 2012
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