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As we’ve seen, the Alcatel-Lucent 7450 ESS provides
the kind of technological advances required to operate
in a service provider environment. Table 2 describes how
the Alcatel-Lucent 7450 ESS enables Ethernet services
that address the service provider’s inter-region and
nationwide requirements.
The Alcatel-Lucent 7450 ESS can also be a key
component in a network design that calls for service
interworking between frame relay/ATM and Ethernet.
The Alcatel-Lucent 7450 ESS can deliver and receive
Ethernet traffic from the Alcatel-Lucent 7670 Routing
Switch Platform (RSP), which handles the service
interworking. With service interworking, providers can
deploy the most appropriate access technology at each
site in the network. This enables them to maintain
current service offerings where appropriate, while provid-
ing new Ethernet-based services over the same VPN.
The ability to provide a unified frame relay/ATM to
Ethernet VPN is critical for service providers who want
to offer high-speed Ethernet services, and protect their
existing network investment and customer services.
A Compelling
Business Case
The numbers are in and the business
case is clear: deploying Ethernet business
services using the Alcatel-Lucent 7450
ESS is a wise investment. Alcatel-
Lucent’s analysis, conducted using fairly
conservative estimates for growth,
indicate that even considering the initial
setup costs, service providers can expect
to achieve a positive cash flow within
the first two years of implementing
Ethernet business services using the
Alcatel-Lucent 7450 ESS.
Whether the need is for VPLS or VLL
services alone, or these services bundled
with Internet access, the business case is
solid. Major factors contributing to this
positive projection are the operational
efficiency improvements and service
assurance enabled by Alcatel-Lucent’s
service-aware OA&M toolkit, template-
based provisioning and the superior
service management support provided
10 Alcatel-Lucent 7450 Ethernet Service Switch
Table 2. MPLS-Enabled Ethernet Services
Name
B U S I N E S S S E R V I C E S
Ethernet virtual leased line (VLL)
Ethernet virtual private line service (VPLS)
Consumer Triple Play residential services
Internet access and IP-VPN backhaul
Description
Point-to-point Layer 2 service interconnecting two sites.
Also known as Ethernet private line (EPL) or Ethernet
line (E-line).
Multipoint-to-multipoint Layer 2 Ethernet services that
interconnect many sites as if they were part of a single
LAN. Also known as transparent LAN service (TLS) and
Ethernet LAN (E-LAN)
Scalable aggregation of subscribers using Ethernet/
VPLS. Initial aggregation may be done via any access
node, such as an Ethernet DSLAM or an Ethernet passive
optical network node, with handoff to the 7450 ESS.
Services delivered using a combination of the Alcatel-
Lucent 7450 ESS (for aggregation and backhaul) and
the Alcatel-Lucent 7750 Service Router (SR) (for IP
services)
Advantages Offered
Provides similar functionality to a frame relay or ATM
leased line service, but with potential cost savings and
ease of use. In demand by enterprises who want to
focus on Ethernet offerings.
A premier service providing high bandwidth capacity
(greater than T1/E1), multiple QoS levels, scalability
and the ability to offer rigorous SLAs. VPLS expands
the next-generation VPN service market.
Provides an alternative to ATM or optical aggregation
of traffic from access nodes. Facilitates bundling of
services, which in turn can aid in customer retention.
Enables providers to offer low-cost, high-speed Internet
access. Also creates the possibility of selling additional
services such as VLL, VPLS and IP-VPN.
S E R V I C E - A W A R E E T H E R N E T A G G R E G A T I O N S E R V I C E S