Glossary
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12–3
12.8 PCNC.DAT
PCNC.DAT is a file, saved in PCNC’s working directory, which is used to
store the Network and Alarm Databases. It also contains any filter
settings for alarm log windows, as well as details of the program’s status,
window positions etc. This means that PCNC does not lose information
when it shuts down, and looks exactly the same when you re-load.
PCNC.DAT holds a lot of user-defined information, which is not
contained on the distribution disks. For this reason, you should take care
not to accidentally delete or damage this file.
12.9 PCNC.INI
PCNC reads an INI file containing configuration information when it is
started. PCNC.INI is set up as defined in Chapter 7 -
Configuring
PCNC.INI and saved in PCNC’s working directory. Like PCNC.DAT, it
holds user-defined information, so be careful not to damage or delete it.
12.10 Poll Number
Every device on a Cabletron network is identified with a unique Poll
number. This number is set on the device and can be checked or
modified (on Local or Remote devices) using the Control Terminal.
Devices include their Poll number in the alert messages that PCNC
receives.
PCNC uses these Poll numbers to look up the devices in the Network
Database and retrieve the necessary information to convert alerts into
alarms. For details of this process, see Section
3.3.1
-
Alert Processing.
12.11 SNMP
SNMP stands for Simple Network Management Protocol, and is a set of
standards that allow you to control and monitor a TCP/IP network. It
consists of five basic primitives - one of which is the ‘Trap’. The Trap is
the SNMP form of an ALERT message, and can be processed in a
similar way by PCNC version 0.27. See Chapter 5 for details.
