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Scientific-Atlanta Addresses Legacy SONET Networks
December 17, 2003
By OpticallyNetworked Staff
Scientific-Atlanta today announced that its new Prisma IP transport platform is designed to bring packet-based
performance and bandwidth efficiency to existing SONET
networks. The new
Prisma IP service is designed to deliver RPR (Resilient Packet Ring) performance to SONET networks.
According to Scientific-Atlanta, the service supports remarkable improvements in bandwidth efficiency,
increasing usable network capacity by up to 60 percent compared to current
SONET network performance by removing channeling traffic inefficiencies.
"The good news is that, with the application of the new Prisma IP cards,
legacy SONET networks just got better," "SONET is
reliable and resilient, but its channel/circuit approach to moving data is too
confining to support emerging needs for moving more and more packet-based
services across existing bandwidth," said Paul Connolly, vice president and
general manager of emerging businesses at Scientific-Atlanta. He said that the Prisma IP transport solution enables
existing SONET networks to maximize the use of available bandwidth by removing
the inefficiencies of channeling the services and putting Ethernet over
SONET.
By using packet-based transport, the new Scientific-Atlanta solution is designed to use
the network in its entirety, making it capable of moving large amounts of data
based on total bandwidth rather than SONET's approach to assigning channelized
amounts of bandwidth to users.
Scientific-Atlanta reports that its use of Multiprotocol Label Switching (MPLS) and RPR,
the emerging IEEE 802.17 standard, are key elements behind the Prisma IP
technology that makes this enhancement for legacy SONET networks possible.
The Prisma IP MPLS/RPR solution for SONET networks, which supports OC-3,
OC-12, and OC-12 ring interfaces, is currently available, according to the company.
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