Alcatel-Lucent 7750 SR OS Manuale utente

Alcatel-L cent 7750

Service Ro ter

2 Alcatel-Lucent 7750 Service Router

The Alcatel-L cent 7750 Service Ro ter (SR) is the ind stry’s first service ro ter designed

and optimized for the delivery of high-performance carrier data, voice and video services.

The Alcatel-L cent 7750 Service Ro ter was designed with system characteristics, ro ting

and service capabilities that have made it the platform of choice in more than 50 new-

generation service infrastr ct re rollo ts.

3Alcatel-Lucent 7750 Service Router

The Alcatel-Lucent 7750 SR functions as

both a powerful router and a flexible service

delivery platform, and integrates with the

Alcatel-Lucent 5620 Service Aware Manager

(SAM) to deliver efficient and streamlined

provisioning, management and billing for

Internet protocol (I )/multiprotocol label

switching (M LS) networks.

Global service providers are preparing for the

next wave of residential and business service

deployments. They understand that in order

to be successful they need a service delivery

infrastructure that offers more bandwidth,

delivered flexibly and reliably to more

customers simultaneously, with increased

service level guarantees.

Service providers are increasingly called upon

to offer personalized voice video and data

services that recognize the unique needs of

individual users; that are, in other words, more

“user-centric.” While the past few years have

seen a focus on network and service conver-

gence with an emphasis on killer applications

delivered over a single infrastructure, the

paradigm has shifted to a user-centric focus

that embraces the demand for a customized

and media-rich user experience across multiple

access methods and across applications.

• For the residential market, the need to

deliver broadcast TV and video-on-

demand (VoD) services that meet high

service level agreement (SLA) standards

has introduced an inflection point that

has pushed network service providers to

profoundly rethink their service delivery

architectures. High-speed Internet (HSI)

infrastructures were built around inefficient

business models that focused on cost-per-

subscriber considerations and allowed for

significant oversubscription and service

level leniency. New high-SLA voice and

video applications have very stringent

availability, system characteristics, quality

of service (QoS), multicast and service

requirements. Those requirements can only

be cost-effectively addressed by rethinking

the overall service delivery infrastructure.

The Changing Service Landscape —

Re hinking he Service Delivery Archi ec ure

4 Alcatel-Lucent 7750 Service Router

L2 and L3

Managed

Data

Services

Multiservice

Transit

(PW)

HSI

Gaming

Future

Services

VoIPVideo

(BTV

and VoD)

Secure ScalableFlexible

Characteristics

Infrastructure

Service-RichHighly

Available

High-SLA Residential, Business

and Wholesale Services

Alcatel-Lucent 7750 Service Router

Cost-Optimized Resource Pool

Streamlined Network and Business Operations

Multi-Area, Access-Agnostic

Converged IP/MPLS Infrastructure

• In the enterprise space, new managed data

services — such as virtual private LAN

service (V LS), I virtual private networks

(I -V Ns) and multiservice transit appli-

cations using pseudowires ( Ws) over a

variety of access methods (frame relay

[FR], asynchronous transfer mode [ATM],

Ethernet, high-level data link control

[HDLC]/point-to-point protocol [ ],

etc.) — allow service providers to attract

and retain a wider customer base at a lower

cost through converged and more reliable

I /M LS service infrastructures. In turn,

end-user customers benefit from a wider

variety of service offerings, increased

service flexibility and accelerated service

activation.

With the Alcatel-Lucent 7750 SR, service

providers are able to build a new type of

cost-optimized highly-available and feature-

rich service delivery infrastructure that can

seamlessly scale to address both residential

and managed data service market needs,

while delivering signiﬁcant economies of

scale, skill and scope.

Figure 1 - Rethinking the Service Delivery Architecture

5Alcatel-Lucent 7750 Service Router

The Alcatel-Lucent 7750 SR platform

provides purpose-built, highly available

software and hardware architectures that

allow network operators to “right-size” their

service infrastructure buildout. The 7750 SR

provides the necessary built-in services

capabilities and packet processing headroom

to allow service providers to scale service

instances, subscriber count and bandwidth

without incurring exponential capital or

operating expenditures (CA EX or O EX).

The critical features and functions that

differentiate the Alcatel-Lucent 7750 SR

from a typical Internet-era edge router are

the system characteristics (delay/jitter) and

service-related capabilities that were tightly

integrated into the product architecture at

inception.

An Industry First

The challenges that service providers are

facing have evolved from addressing rampant

bandwidth growth for Internet trafﬁc to

enabling cost-optimized and highly resilient

service delivery infrastructures that can scale

and ensure proﬁtability while minimizing

the overall deployment risk in the long run.

Existing Internet-era routers and enterprise

switches were designed ﬁve to eight years ago

to handle bandwidth growth for best-effort

trafﬁc. These platforms were not optimized

for new-generation service infrastructure

rollouts, as they are limited by their system

characteristics (delay/jitter, packet re-ordering

and loss) and their inability to scale services

across all dimensions (number of interfaces,

bandwidth, service instances and policies,

performance level, etc.).

Similarly, so-called I service platforms

have appeared on the market, but they were

designed and optimized for low-speed, best-

effort consumer services (mass-market digital

subscriber line [DSL] for residential service).

They do not have the high-availability,

scalability or service capabilities that will

allow them to cost-effectively enable large-

scale (tens of millions of customers), high-

speed data, voice and video service rollouts.

A New Class of Pla form

The change from traditional best-effort Internet

routing and enterprise switching to true service

routing is not an incremental step — it is a

radical advancement that has required a complete

rethinking of the product architecture and design

at inception. This inflection point is where the

Alcatel-Lucent 7750 SR has established a

leadership position.

6 Alcatel-Lucent 7750 Service Router

An improved regulatory environment and

the clear potential for incremental revenue

have convinced many incumbent service

providers to rapidly make considerable

investments in new service delivery

infrastructures. By adding video, voice and

managed data services to their existing high-

speed data and Internet service lineups,

service providers can improve their

competitive position in the market.

All service providers competing in this

market are faced with the challenging task of

offering a compelling value proposition for

their service offerings in order to achieve and

maintain a high average revenue per user

(AR U) and to sustain the long-term

proﬁtability of their services (see Figure 2).

For service providers who successfully meet

this challenge, beneﬁts will include the

ability to:

• Successfully sell new, higher value services

to their established customer base

• Leverage their brand equity to offer high-

margin bundles and minimize churn

• rogressively build their service

infrastructures around profitability models,

as opposed to network or infrastructure

constraints

• Consolidate multiple specialized networks

into a cost-optimized and efficient service

infrastructure that will achieve economies

of scale and maximize the profitability of

services

200

Local

ARPU (in U.S. Dollars)

150

100

0Voice

Only

Voice

and Data

Voice,

Video

and Data

Long Distance

Broadband

Basic Video

Digital Video

Premium Video

VoD

DVR

HDTV

Source: The Yankee Group, 2004

The Proﬁ abili y Fac or

Figure 2 - Projected ARPU for Various Tri le-Play Services

7Alcatel-Lucent 7750 Service Router

• Streamline network operations across

protocol layers to achieve economies

of skill, and evolve the overall service

infrastructure to a more homogeneous,

scalable and flexible architecture

• Streamline business operations to achieve

significant economies of scope across

service offerings (e.g., order fulfillment,

support, billing, marketing)

• Future-proof their service infrastructures for

the future layering of ultra-high bandwidth

business and residential applications

• Minimize the overall financial and tech-

nological risks over the next seven to

ten years

In order for service providers to achieve

signiﬁcant economies of scale, skill and scope

they need to evolve their second-mile, and

perhaps ﬁrst–mile, infrastructures to a highly

available, secure and cost-optimized service

delivery foundation that can scale to support

existing and future ultra-high-speed residential

and business service rollouts. This requires

a comprehensive approach to the service

delivery architecture design.

The Alcatel-Lucent 7750 SR offers

unmatched density and performance: up to

400 Gb/s full duplex redundant capacity in

one-third of a carrier’s system rack. This,

along with its advanced service-oriented

features, makes it the ideal choice for service

providers who are looking to roll out a new

generation of triple-play infrastructure-based

services.

An important capability that distinguishes

the Alcatel-Lucent 7750 SR from Internet-

era routers is the built-in packet processing,

service headroom and ﬂexibility that ensures

that new features can be soft-loaded with the

promise of uncompromised performance up

to 40 Gb/s per slot. Application-speciﬁc

integrated circuit (ASIC)-based implementa-

tion, on the other hand, requires a costly

and lengthy line card re-spin each time a

new feature or extension is required. For the

service provider this results in high cumulative

CA EX, disruption of service and slot exhaus-

tion as each new feature and capability

requires a new specialized line card or module.

This approach lengthens time-to-market for

services and introduces signiﬁcant support

and turnaround time.

“The Alcatel 7750 SR is a great example of a multiservice edge router. It not only combines the

scalability that’s required for these consolidated IP/ PLS networks, but it also incorporates a number

of different features that help service providers deliver IP/ PLS-based services. That is really the

distinguishing factor between the 7750, for example, and some other traditional edge routers on

the market today. It makes it a great fit for those consolidated network environments.”

ARK BIEBERICH, SENIOR ANALYST, CO UNICATIONS NETWORK INFRASTRUCTURE, THE YANKEE GROUP

* This reference was provided to Alcatel prior to the merger.

8 Alcatel-Lucent 7750 Service Router

The Alcatel-Lucent 7750 SR delivers the

features that service providers need to offer

a new generation of highly proﬁtable media-

rich services. The service orientation of the

Alcatel-Lucent 7750 SR means that all the

features are designed around the concept of

a service, whereas existing routers and switches

were designed around physical interfaces.

This fundamental difference in architecture

and design separates the Alcatel-Lucent

7750 SR from other vendors’ routers.

Key Fea ures

Architecture and

system characteristics

QoS

Routing

Services

IInntteerrnneett--eerraa RRoouutteerr

Repurposed core router, positioned as edge platform

Architecture optimized for low fan-out “fat pipe” forwarding

ASIC- ased architecture results in costly proliferation

of specialized service modules: results in exponential CAPEX, slot

exhaustion, and low feature velocity

Su standard, unpredicta le delay/jitter and loss characteristics

Known packet re-ordering issues

Inadequate for media-rich voice and video deployments

“Coarse” QoS implementation

Static QoS implementation, inadequate for voice and video applications

Low queue count results in queue depletion and forced costly upgrade

to enhanced line cards

Good support

No high-availa ility routing

Service deployments result in costly service module proliferation:

maximized cumulative CAPEX

Cannot scale services across all dimensions without forced compromise

Cannot scale Layer 2 and Layer 3 services concurrently

Non-scala le proprietary VPLS implementation

AAllccaatteell--LLuucceenntt 77775500 SSRR

Purpose- uilt portfolio

Highly-availa le hardware and software architecture uilt to exceed

stringent SP requirements

Flexi le Fast Path architecture com ines high performance and

flexi ility

Scales service instances, su scri er count and andwidth with

uncompromised performance

Optimal delay/jitter characteristics

Density/flexi ility in form factor

Unique hierarchical QoS capa ilities are ideally suited for triple-play

deployment

Highly scala le QoS implementation scales to tens of thousands of

su scri ers: 16,000+ queues availa le per interface slot

Leading high-availa ility routing capa ilities

Leading all-around routing scala ility

Leading service scale

Unique a ility to scale Layer 2 and Layer 3 services within one

platform: 11,000+ concurrent active service instances per chassis

Flexi le Fast Path architecture scales service instances, su scri er

count and andwidth with uncompromised performance

Table 1. The 7750 SR vs. Internet-era Routers

9Alcatel-Lucent 7750 Service Router

Purpose-Built,

Hig ly-Available Platforms

The Alcatel-Lucent 7750 Service Router

portfolio beneﬁts from Alcatel-Lucent’s

recognized experience in deliver ing carrier-

grade telephony, wireless, optical and data

solutions. The Alcatel-Lucent 7750 SR

portfolio was designed to exceed the stringent

reliability demands of service providers,

with a hardware and software architecture

designed for maximum uptime.

The Alcatel-Lucent 7750 SR is a fully

redundant platform with no single point of

failure, and implements a real-time, modular

operating system that has been proven and

production-hardened in more than 50 large-

scale deployments worldwide.

Ric , Dependable Services

The 7750 SR portfolio allows service

providers to deploy and scale a rich set of

high-SLA services, without the need for

costly line card or platform proliferation.

The system characteristics, service perform -

ance and QoS capabilities of the 7750 SR

have made it the platform of choice for

media-rich, triple-play deployments.

Additionally, the Alcatel-Lucent 7750 SR

provides a lead ing implementation of point-

to-point and multipoint I /M LS services.

The services enabled are pseudowires for

multiservice transit over I /M LS, V LS,

corporate Internet access, I -V Ns and more.

The Alcatel-Lucent 7750 Service Router’s built-in system characteristics,

flexibility and service capabilities allow service providers to activate a new

generation of high-performance data services, including carrier voice and

video services. The Alcatel-Lucent 7750 SR’s unique packet processing and

hierarchical QoS (H-QoS) capabilities have made it the platform of choice

for a new generation of triple-play service infrastructure rollouts.

10 Alcatel-Lucent 7750 Service Router

Market-Leading Scalability

The Alcatel-Lucent 7750 SR was designed

to support tens of thousands of services per

device and scale to hundreds of thousands of

service instances per service area, making it

ideal for multiservice edge and collapsed core

applications. Each individual service can be

conﬁgured with thousands of speciﬁc ingress

and egress QoS parameters and multiple

services can be aggre gated to deliver a single,

overall SLA to each customer. Granular

service-oriented accounting and statistics

scale to enable accurate SLA measurement

and billing for tens of thousands of high-

bandwidth subscribers.

Flexible Service Evolution

The unique, fully programmable network

processor-based architecture of the Alcatel-

Lucent 7750 SR allows service providers to

customize or add new services and adapt to

emerging standards with simple in-service

downloads, without requiring expensive and

lengthy hardware upgrades. Service providers

can roll out new services faster, to more

customers, at a lower operational cost, all

through a common network infrastructure.

All Services on All Interfaces

All service features such as QoS, deep

buffering, rate shaping, trafﬁc marking and

billing are available on all interfaces or sub-

interfaces. Service providers can provision

access ports and I or M LS tunnels on

any physical interface, with no additional

specialized hardware required.

Service-Based Hierarc ical QoS

With the Alcatel-Lucent 7750 SR service

providers can offer voice, video or V LS and

I -V N services on an unprecedented scale

to thousands of customers with guaranteed

QoS differentiation. Service providers can

give distinctive treatment to individual

services, and combine multiple service classes

for any customer into a single SLA with

committed information rate (CIR) and peak

information rate ( IR) guarantees.

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