Cabletron Systems Netlink FRX8000, User Manual

Page: 269 / 468

On-line Operat ions 18-13
Call Accounting File Operations
Totals of packets and bytes sent and received for each X.25 connection are collected
by each node and written to a file at the local or “current” ICP/INM/NMP, which is:
●
Its
Alternate NMP Node
, as specified in the Node record, or
●
If the alternate NMP/node is down, its
2nd Alternate NMP Node
, as specified in
the Node record, or
●
If both the alternate and 2nd alternate NMPs/nodes are down, the current NMP/
node is the lowest-numbered operational node in the network.
The Call Accounting file is available for billing report generation or for transfer to
another system for data analysis. For each connection (except frame relay PVCs), the
following information is available:
Connection Setup
– Generated when the SVC (call) or PVC is established, this
record contains a timestamp and all of the data known to the ICP/INM/NMP at
setup time, including subscriber addresses, end nodes, thruput class, facilities
requested, etc.
Interim Report
– Generated at configurable (in the Network Defaults file) intervals
between the Call Setup and Call Clear. This record contains the call identification,
time stamp, clearing cause and diagnostic codes (hexadecimal), and counts of
packets, segments, and bytes since the last interim report or Call Setup.
Connection Clear
– Generated when the SVC call is cleared or the PVC is deleted.
This record contains the call identification, timestamp, reason for termination, and
counts of packets, segments, and bytes since the last interim report or connection
setup.
In the case of a failed Call Request, the packet, segment, and byte counts are 0. If the
call was cleared before reaching the remote node, the remote LCN will be 0. If the call
was cleared by the destination DTE, the cause and diagnostic codes sent by the
clearing DTE will be inserted into the Call Accounting record.
With the
Rollover Accounting Information File
operation, you can close the current
version of the file and open a new one. (This is called “rolling over” the file.) If, for
example, you want to have separate files for each day, use this operation daily.
This operation is useful only if call accounting is enabled. Type
ll [Enter]
at the
[NETLINK]
prompt. (
ll
is two lowercase Ls.) If a file named ACCNT is present, call
accounting is on. (See “Turning Call Accounting On or Off.”)
When it is turned on, the call accounting function is enabled on startup of the ICP/
INM/NMP. Since the file continuously builds, it can use up all available disk space if
not maintained by routinely rolling it over, copying the old file to diskette(s), then
deleting the old file from the hard disk. These operations are the responsibility of the
operator and are the only active intervention in network call accounting.
The FRX8000 software can be modified to enable automatic rollover of the
call accounting file; however, this should be done only by a qualified
system manager or administrator. Instructions can be found on page F-6.