Cisco and Paradyne Tests IP Video over DSL

Cisco Systems and CC&I Engineering, which specializes in switched digital video systems integration, have built what is described as one of the largest IP test beds for consumers video services over DSL. The test bed at Cisco's Customer Proof-of-Concept Lab (CPOC) in San Jose uses Cisco's Catalyst switches and Paradyne's IP-based DSLAMs connected over a fiber ring using Gigabit Ethernet.


The companies said their tests showed that Paradyne's compact (1U) GranDSLAM 4200IP maintained "excellent video quality" even when the combined multicast video and best-effort Internet traffic offered to the network was at 185% of capacity. In addition to measuring processing capability, the network was tested for jitter - a critical signal synchronization condition - that was shown to be less than 1 millisecond, nearly 50 times better than CC&I's design.
http://www.paradyne.com
http://www.cci-eng.com