The importance of SMC Service Management Center and Quality of Service for management of commercial networks.

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