The importance ofSMC Service Management Center

and Quality of Service for

management of commercial networks

Actual Situation

Current Place of SMC in Narrowband WA Network (1/2)

ISP

SMC

RANER

RAN

Individual users

CorpLAN

Current Place of SMC in Narrowband WA Network (2/2)

ISPIAP

PROXY

SMCProxy SMC

RANER

RAN

RAN

RAN

Individual users

CorpLAN

Remoteuser

Alcatel Narrowband Enhancement (1/2)

SMC A1135

User authentification: name, password

User authorisation: access restrictions

User accounting: billing time/volume/speed

proxy supported

VPN based concentrationSession handlingNetwork adaptation

(Remote) user

Cost & performance

efficiency

RAN

SMC

DANA

ADSLBOOSTING BOOSTING the network: speed x 50

Using the POTS hard shoulder: Frequency modulation

Simple Plug-and-Play (Light ADSL)

Based on ATM

Universal Single Standard

Alcatels Narrowband Enhancement (2/2)

Broadband PPP/ATM RAN architecture

Actual Problems

Actual Narrowband Service configuration

Applications

Video conf.

Crit. data

Telephony

Data

ISP 1 ISP 1 ISP n ISP n

Corp 1 Corp 1

Corp n Corp n

Customers

StandardStandard BronzeBronze SilverSilver GoldGoldService Level

256 - 384 Kb256 - 384 Kb

256 - 384 Kb

768Kb - 1.5 MB768Kb - 1.5 MB

768Kb - 1.5 MB768Kb - 1.5 MB256 - 384 Kb

Actual Narrowband Problems

POTS: Plain Old Telephone Service

Direct Client-PABX link: 100% reservated but...<<100% use

PSTN 64Kps available limit, Mps need: overload

Merely no differentiated customer groups, no differentiated services no differentiated billing

Hugh cost/performance ratio

Protocol conversions, large overhead

New Trends

1997: Evolution of Wide Area Networks

ISPPublicLeased Line

Virtual network

Frame Relay/ATM

Tim

e e

volu

tion

Key TrendsKey Trends

• Traffic patterns: predictable chaotic

• WAN boundaries:separate integrated

• mission critical: separate integrated

• data volume: definedexponential

• requirement: data information

Historical future

Key NecessitiesKey Necessities

• increased bandwith

• extended reach

• enhanced ‘smart’ applications

• controlled behavior

New Evolutions

1. Development of WAN access is more customer satisfaction

orientated

Customer Satisfactory of WAN: actual requirements

Customer Satisfaction WAN (source: Newbridge)

0 1 2 3 4 5 6 7

customer service

reliability

speed/bandwith

ease of use

seamless integration

cost/performance

clarity of billing

simplified tariffs

speed of provisioning

geographic availability

degree of outsourcing

voice/data integration

satisfaction importancy

Customer Satisfactory WAN: actual requirements

-60

-40

-20

0

20

40

60

80

100

120

0 1 2 3 4 5 6 7

Customer Stress

Pre

se

nt

Va

lue

of

imp

rov

em

en

t

reliability

customer service

speed/bandwith

ease of use

cost/performance

seamless integration

clarity of billing

speed of provisioning

simplified tariffs

geographic availability

degree of outsourcing

voice/data integration

2. Integration of legacy networks

Actual separated Users

Lotus Notes.lnk

SAP, BAAN

Database

Surfing

Future mixed (?) Users

Lotus Notes.lnk

SAP, BAAN

Database

Surfing

$

New apps impact mission-critical apps

@

3. Bandwith policies

Bandwith policy by creating application profiles

Based on Packet lossround trip delaytroughputpacket jitterone-way delayreachabilitynetwordk service availabilityduration of outagelenght of outages

Source: Framework for metrics for SLA

Internet surfing application profile

0

1

2

3

4

5

6

7

8

9

10

packet loss

secure data transfer

network outage

reachabilityround trip delay

throughput

packet jitter

SAP application profile

0

1

2

3

4

5

6

7

8

9

10

packet loss

secure data transfer

network outage

reachabilityround trip delay

throughput

packet jitter

Banking application profiles

0

1

2

3

4

5

6

7

8

9

10

packet loss

secure data transfer

network outage

reachabilityround trip delay

throughput

packet jitter

Every cube will be a VPNEvery cube will be a VPN

Applications

Video conf.

Crit. data

Telephony

Data

ISP 1 ISP 1 ISP n ISP n

Corp 1 Corp 1

Corp n Corp n

Customers

StandardStandard BronzeBronze SilverSilver GoldGoldService Level

Applicability of VPN’s

Applicability of VPN: policy enabled net

Is this user authorized to run this application?

What level of performance is needed to do the job?

What priority shouldthis application/user

receive?

4. L2 versus L3 solutions

1. Switching <> Routing: advantages and disadvantages.

Is the world willing to adapt :Benefits > development cost and investments ?

Is the world able to adapt:Backbone support ?

2. IP and ATM:

IP over ATM

Packet switching => no quality control

Cell switching: Priority indication

ATM

IP packet

Actual Discussion

Connection orientedswitching

Connectionlessrouting

Semi-Connection orientedrouting

Quality-driven Bandwith-driven

Actual Challenges

Actual Challenges

1. Integration of legacy networks, creation of IntelligentGlobal Infonet

Switched circuitnetworks

IPNetworks

ATM/BB/SCL/IPNetworkGateway

Gateway