Resilient Packet Ring
RPR also plays an important role in the development of data services in the metro. RPR is a new Media Access Control (MAC) protocol that is designed to optimize bandwidth management and to facilitate the deployment of data services over a ring network. The roots of RPR go back to the point at which Cisco Systems adopted a proprietary Data Packet Transport (DPT) technology to optimize packet rings for resiliency and bandwidth management. DPT found its way into the IEEE 802.17 workgroup, which led to the creation of an RPR standard that differs from the initial DPT approach.
RPR has so far been a very attractive approach to multiple service operators (MSOs), such as cable operators that are aggregating traffic from cable modem ...
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