RPR & ATM Product Family:

Resilient Packet Ring Technology

The Resilient Packet Ring (RPR) standard, IEEE 802.17, combines the reliability, service guarantees, and management capabilities of SONET with the statistical efficiency of packet networks.

The Cortina RPR standards-compliant products integrate the RPR function with that of other framers/mappers including SONET/SDH, GFP, POS, and ATM. Cortina RPR devices are commonly used in SAR line cards, and Multi-Service line cards such as the MSPP Line Card in Diagram 1, see below.

Table 1 below provides details on Cortina’s RPR devices. The CS2111 supports the RPR MAC only while the CS2333 and CS2777 provide a SONET/SDH Framer among other features. All products support an SPI4.2 interface and the IEEE 802.17 recommendation.