| Service Provider
Solutions of Intelligent Networks
The Internet revolution is making a lot of new
companies rich, yet many Internet Service Providers struggle to
make a profit. Selling generic Internet access and raw bandwidth
has proven a difficult path to profitability: competing on price
alone doesn't excite shareholders or prospective customers. ISPs
and the enterprises they serve want and need differentiated services.
The need to provide value beyond simple
connectivity and data transport in part explains the rise of next-generation
service providers: whole new segments devoted to application and
website hosting, controlled content distribution, managed extranet
services, and the like. Further, the rebuilding of traditional telecom
infrastructure from separate circuit-switched networks (for voice)
and frame/cell-switched networks (for data) to a single, IP-based,
converged infrastructure is well underway.
These two trends underscore the urgent
need for mechanisms to bring predictable, manageable quality of
service to IP networks. The best-effort nature of IP by itself is
a significant handicap both to enterprises trying to implement critical
e-business applications and to service providers seeking to deliver
value-added network services.
Asce Networks' NeuTrans policy
suite provides the tools that service providers need to deliver
differentiated IP services. It lets service providers specify and
enforce differing levels of Quality of Service based on such metrics
as end-to-end latency and packet loss. This enables service providers,
for example, to offer tiered services - gold service for business
critical or latency-sensitive applications, silver and bronze for
basic productivity applications, e-mail, and Web browsing - and
to charge a premium for higher service levels.
Giving subscribers the ability to self-provision their own traffic
and quality of service levels from their ISP is a very attractive
offer from both the customer and service provider perspective. Service
providers can be more competitive and increase revenue by allowing
customers to determine which applications should have the highest
priority data transfer.
Such tiered services are easily mapped onto network elements like
routers that support either Diff-Serv or IP Precedence QoS mechanisms,
and achieved by two independent mechanisms that together determine
a transmission service. First, packets are classified at the network
edge (and only at the edge) and shaped (rate controlled); each packet
header is marked with the appropriate precedence value. Second,
core network nodes are configured to assign a certain class of service
to packets with a certain priority value. The first mechanism (edge)
is rather dynamic and can be changed frequently. The second mechanism
(core configuration) is relatively complex, and thus changed rather
QoS for Virtual Private Networks
A simple example of how Asce Networks
can help service providers to deliver market-leading services can
be found in managed Internet VPNs. The use of Internet VPN technology
has gained rapid acceptance among large enterprises as an alternative
to traditional WAN services like leased lines and frame relay. The
maturity of the technology, the entry of major datacom equipment
vendors into the market, and demonstrable benefits such as dramatic
reductions in monthly recurring charges have fueled the rapid growth
of Internet VPNs.
However, the comparatively poor service level agreements of Internet
VPNs have somewhat hampered their adoption: latency, jitter, packet
loss, and availability compare poorly to typical frame relay services.
Once again, IP's best-effort service delivery is the main culprit.
Asce Networks can help service providers overcome this inherent
weakness in existing generic Internet VPN offerings and so capitalize
on the migration to Internet VPNs. Specifically, NeuTrans gives
service providers the means to build QoS-enabled Internet VPN services
that can deliver better network performance for the enterprise customer's
most important traffic. Customers can enjoy the benefits of VPNs
(lower costs, better ubiquity, faster deployment) from a provider
that tailors network performance to their specific business and
application requirements of specific customers. That added value
translates into more customers, better margins, higher revenues,
and bigger profits.
For information on NeuTrans please
go to our website on Products, or send email to email@example.com