Download Accounting of a large TCP/IP network with SAS/CPEr software for open systems at Deutsche Telekom AG

Who ?
Deutsche Telekom AG
The company - some figures
41 million customers
64 billion DM turnover
120 branches in Germany
215 000 employees
3rd largest telecommunication company world-wide
Accounting of a large TCP/IP network
with SAS/CPE for Open Systems at
Deutsche Telekom AG
The WHY and the HOW
Author:
Reinhold Schlüpmann
Deutsche Telekom AG
Informationstechnisches Zentrum
Department of Information Technology
6 Strategic Computer Centres (Main data processing centres)
° mainframes: IBM/MVS, SNI/BS2000
° div. UNIX-Systems
1 Information Technology Centre
for IT planning, HW and SW testing, SW-delivery
centralised Competence Centres for special tasks
(e.g. network administration, office communication)
local IT service groups at each branch and other institutions
° for PCs, Workstations and local servers
° for the in-house network
WHAT: In-house TCP/IP network
TCP/IP network of the IT department
beside traditional IT networks with SNA and TRANSDATA
protocol
usage of standard telecommunication services of the company
LAN / MAN - decentralised administration
offices of different branches in the same building
MAN connects LANs (buildings in the same city)
> 40000 active IP-Addr. / > 2000 Router
WAN - centralised administration
WAN connects LANs/MANs of different cities
200 transition router, connecting LANs/MANs to the WAN
What: Accounting / Chargeback
Installation of full commercial accounting and chargeback processes
in all departments of the company after deregulation
Responsibility of IT users (user groups) for usage of IT resources
IT department became a financial service centre,
all IT services should be accounted to cost centres.
Existing structur of accounting and chargeback
IT department runs a own accounting application
for IT controlling, price calculation etc.
Cost centres are primary the application
Applications on host system
(IBM-MVS, SNI-B2000, different UNIX- Systems)
are accounting the network usage by ‘themselves’
Prinziples of IT Prizing
The IT service is accounted by service types, e.g.:
° Usage of CPU-instructions (rated CPU time)
°...
For the in-house TCP/IP network:
° Number of ‘active plugs’ to the TCP/IP in-house network
price includes unlimited in-house data transfer (LAN-traffic)
° Amount of Mbytes transferred to the WAN
Billing
The billing process to internal and external customers is done
by SAP R/2 as a service of the financial department.
The IT department has to specify yearly
° the types of the IT services
(e.g. rated CPU time, Mbyte transmitted)
° the price per IT service unit
The IT department has to deliver (file) monthly:
° the task id (cost centre id or account id)
° the type of the IT service (e.g. rated CPU time)
° the amount of service units (e.g. # Mbytes transmitted)
Types of cost centre
software application owner (sponsor)
most IT services are the result of the usage of software
applications.
IT resource user
some IT services are on the responsibility of the resorts in
the branches; for example:
° usage of office communication
° usage of external TCP/IP net (INTERNET usage)
° usage of internal or external Database Services or WWW
Specific rules for network accounting:
1. Preferred: Cost centre of software application owners
(source or destination)
2. Normal: Cost centre of transmitter (source)
3. Default: Cost centre of router administrator of transmitter
How ?
Data monitoring in ‘transition routers’
Most routers are CISCO-Routers
Monitoring of performance values by HP-NodeManager
Monitoring for ‘accounting records’ by own code software
Function:
° selection of the ‘gateway’-port of LAN-WAN transition;
° counting data volume of traffic per address pair;
° building records consisting of
‘source-IP-addr. / dest.-IP-addr. / # bytes’
How ?
Centralised database  SAS/CPE for Open Systems
router ‘account’ records
source IP-address
destination IP-address
# Mbytes
cost centre table
IP-address
System-Id


IP-address

Application Id

IP-address


cost centre
default cost centre table
IP-quartet
default
cost centre
Changes ?
IBM/SNA and SNI/TRANSDATA networks will be consolidated
into the TCP/IP net
potential growth to about 120,000 active IP-addresses (‘plugs’, users)
changes in the organisational structure of the IT department
° outsourcing of the IT department ??
all customers will become external customers
frequent changing of account ids / cost centres
° changing from application to process accounting ??
° new general accounting system for the IT department ??
° new billing system (instead of SAP R/2) ??
WHY SAS/CPE for OpenSystems ?
° adaptability to different data sources
° suitability for mass data
° changeability of functionality
° integration with network performance data
data for accounting are only another ‘view’ of some kind
of performance data (source: HP-NodeManager)
° availibility of powerful UNIX-Hardware
° same syntax as SAS with IBM / MVS
Conclusion ?
° Mainly NOT a technical problem,
but an organisational
° ...
° ...
Reinhold Schlüpmann
Deutsche Telekom AG
Informationstechnisches Zentrum
Postfach 10 14 54
D 64214 Darmstadt
Tel:
Fax:
e-mail:
+49.61 51.8 18-43 23
+49.61 51.8 18-43 32
[email protected]
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