Zhone Technologies ZTI-PG - Manual (Page 8)

 Z H O N E T E C H N O L O G I E S E T H E R N E T O V E R C O P P E R
Services Enabled by EFM
As the rate and reach achievable with EFM suggest, the
most attractive application for the technology is simply
the delivery of much higher bandwidth services for SMOs
and cell sites at more affordable rates. As a rule of
thumb, operators are able to offer profitable EFM band-
width today at about 1/6 the service charge per Mbps of
T1/E1. The flexible bond group design of EFM allows
customers to easily migrate from one bandwidth level to
the next by adding pairs one at a time.
Beyond just more bandwidth, the native Ethernet archi-
tecture of EFM also enables a number of other value-
added services, which create tiered pricing opportunities
for operators. These include:
E-Line Services — Also known as Ethernet Private Line
(EPL), are point-to-point services over Ethernet in the
access network, generally Internet or VoIP connections.
These can also include VPN services. This is also an
alternative to traditional Frame Relay, as well as fractional
or full T1/E1 service and even dial-up service.
E-LAN Services — Also known as Transparent LAN
Service (TLS), E-LAN involves using Ethernet access-
network connectivity to create a seamless Ethernet LAN
extension from the subscriber/enterprise network to the
WAN & across the WAN to other locations. It is consid-
ered a native Ethernet multi-point service using Layer 2
functionality. E-LAN services are an attractive alternative
to Frame Relay and IP VPN services over T1/E1 infra-
structure.
SLA E-LAN Services — SMOs that are part of larger
organizations often need guaranteed bandwidth for TLS
services between their locations, to support mission-
critical applications. Adding Service Level Management
via IP SLA provides an added value service tier for these
customers.
TDMoE Services — Some service providers merely use
Ethernet as a simplified means of delivering T1/E1 TDM
services due to the attractive operating economics.
TDMoE is transparent to the end subscriber, who still
sees a T1/E1 rate connection. TDMoE with a carefully-
controlled clock reference for TDM timing-critical
applications (such as cellular voice backhaul) is also
known as pseudo-wire, or PWE.
Easy, Fast Implementation
Beyond the higher bandwidth and advanced services EFM
supports, the technology also offers service providers
substantial time to market advantage and operating
savings, from its simplicity and flexibility in network
design, installation, turn-up, and maintenance. Especially
when embodied in a well-integrated and scalable multi-
service access platform approach, as with Zhone’s EFM
portfolio, the equipment is capable of supporting a wide
range of configurations, from single point-to-point
installations through very high density aggregation, all
within the same interoperable hardware and software
architecture.
Up to 432 Ports
CO Model