7. PARAMETERS › 7.3 Unit-level Parameters › 7.3.6 Network Service Group Definition (NETGROUP)
7.3.6 Network Service Group Definition (NETGROUP)
The CA MICS Network Analyzer supports the data element
NETGROUP in each of the six files available for accounting:
o NCP Network Accounting (SNTNAC) File
o CA NetSpy Terminal (SNTNSS) File
o NPM User Activity (SNTPSU) File
o NLDM Session Accounting (NVSNSA) File
o NLDM Session Connectivity (NVSNSC) File
o NLDM Response Time (NVSRTM) File
NETGROUP is used to classify a network session according to
its service requirements or its configuration
characteristics. The classifications permit differential
billing based on service requirements or configuration.
For example, an enterprise may want to charge a premium for
sessions that receive a high transmission priority.
Sessions with a transmission priority greater than 0 could be
charged at the rate of 125% of the normal charge for
character traffic. All other sessions would be charged at
the standard billable rate (that is, 100%).
Defining network service groups is a two-step process.
First, each network group is identified by a network group
number (an identifying number in the range 1-256), a service
factor (a value that identifies the rate at which session
charges will be assessed), and a description. This
information is recorded in prefix.MICS.PARMS(NETGROUP).
Then, a routine is coded to set NETGROUP in the appropriate
files so it can be used for network accounting. This
routine, called NETGPRT (also a member of prefix.MICS.PARMS),
is discussed in Section 7.3.7 of this guide.
NETGROUP is a numeric variable whose value, by CA MICS
convention, must be an integer from 1 to 256. The actual
value of NETGROUP is not used in any computations or
additional processes. It is simply a retained value that is
associated with a specific service factor.
You can use the worksheet provided in Figure 7-9 to define
NETGROUP. Once the worksheet is complete, transfer the
information to prefix.MICS.PARMS(NETGROUP). The rules for
completing the worksheet are as follows:
o All fields, except the description field, are required
for each statement.
o An asterisk (*) in the first column indicates that the
entire statement is a comment.
o Blank lines are ignored.
o The format of a statement is freeform, but positional.
The form for each statement follows:
GROUP = Service-factor description
NETGROUP- = An integer from 1 to 256
NUMBER
SERVICE- = Any valid number, with or without
FACTOR fractional value
DESCRIPTION = An optional description of the network
service group
Examples
--------
Establishing network groups results from the decision to
differentially charge for network resources based on expected
service or configuration parameters. You may find the
examples below useful in your decision-making process.
CLASSIFICATION BY CONFIGURATION
Some network users require specialized facilities to ensure
high speed transmission, extended availability through
redundant hardware, extremely low error rates, or quick
response time. Installing high speed links and transmission
groups, assigning high transmission priority to specific
classes of work (higher priority for interactive rather than
batch transmissions), or providing for redundant
communication lines are examples of ways in which high
priority users may be provided with better service on a
network. As a direct result of the additional cost of these
facilities or in recognition of the improved service they
afford, the enterprise may want to charge a premium for this
type of service.
The CA MICS Network Analyzer provides data that can be used
to distinguish configuration and service differences, such as
link name (SLULINK), controller name (SLUPU), virtual route
number (for example, NSCVRRTE), transmission priority (for
example, NSCTRPTY), or explicit route (for example,
NSCEXRTE).
CLASSIFICATION BY LOCATION
An enterprise may want to break the assignment of NETGROUP
numbers into blocks, assigning a block of numbers to specific
networks. The CA MICS Network Analyzer supports the data
element NETWRKID, a user-defined data element you can use to
identify individual networks.
CLASSIFICATION BY PERFORMANCE CLASS
CA MICS Network Analyzer supports the NetView concept of
performance class as the data element PERFCLSS in the NVSRTE,
NVSRTM, NVSNSA, and NVSNSC files. The CA NetMaster RTM class
is equivalent to the NetView performance class. In this
guide, RTM class is referred to as performance class.
Performance classes are defined by each site when NetView or
CA NetMaster is installed. PERFCLSS is generally used for
classifying or grouping users for reporting response time so
that response objectives and distribution thresholds are the
same for users who perform similar functions and the response
times recorded by the Response Time Monitor may be easily
evaluated for each group of users defined to be within the
same PERFCLSS.
PERFCLSS may be adapted for use in differential billing so
that the charges for one group of users are adjusted to 75
percent of the standard charge assessed for data traffic and
connect time to all other users. In this case, a service
factor of .75 would be associated with the particular
PERFCLSS.
A sample NETGROUP member is shown below:
* SAMPLE NETGROUP MEMBER
GROUP 1 1.00 'DEFAULT SERVICE GROUP/FACTOR'
GROUP 2 1.50 'FIBER OPTIC LINKS'
GROUP 3 1.33 'T1 LINKS'
In this example, the default network service group is 1, and
its corresponding service factor is 1.00. User sessions
that fall into this category are charged at the standard
rate for network services. Group 2 is assigned for sessions
across fiber optic links; these sessions are charged at the
rate of 1.5. Sessions using T1 speed links are charged at a
33 percent premium rate.
+--------------------------------------------------------------------------+
| INSTALLATION PREPARATION WORKSHEET: Network Group Definitions |
| |
| PARMS Library Member is NETGROUP |
| Reference Section: 7.3.6, CA MICS Network Analyzer Guide |
+--------------------------------------------------------------------------+
| |
| NETGROUP SERVICE |
| NUMBER FACTOR DESCRIPTION |
| |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
| GROUP ______ _____ '_____________________________________' |
| |
+--------------------------------------------------------------------------+
| ....5...10...15...20...25...30...35...40...45...50...55...60...65...70.. |
+--------------------------------------------------------------------------+
Figure 7-9. Network Group Definition Worksheet
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All rights reserved.
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