NET/MASTER Network Control Language (NCL) Programmer's Guide

Working With Vartables
Advanced NCL Programming
106160 Tandem Computers Incorporated 18–23
Figure 18-1. Structure of a Vartable
Counter Data 1
Data
n Unique Key
Correlator • • •
Counter Data 1
Data
n Unique Key
Correlator • • •
SCOPE AGE DATA DELOLD
KEYFMT KEYLEN LIMIT USERCORR
Unique Identifier
044
Definition
Entries
• • • • • •
Defining a Vartable The VARTABLE ALLOC verb defines a vartable. Vartables have the following
attributes specified in their definition:
A name
A scope
The ageing characteristics of entries
The maximum number of data fields in an entry
An entry deletion option
The key characteristics
The maximum number of entries
Counter characteristics
Vartable Names
A vartable name is assigned when the table is created. It is used by all VARTABLE
verbs when referring to the table. The name is assigned using the ID operand of the
VARTABLE ALLOC verb. The vartable name must be unique within the scope of the
vartable.