IS-IS Interaction with IP Over Redundant Packet Rings (IPoRPR)
Redundant Packet Rings (RPR) is a new form of layer 2 packet transport which provides several advantages. RPR rings appear to be single hop broadcast segments to layer 3 protocols, such as IP, but IS-IS has several modes of operation over them, which can take advantage of some unique RPR capabilities.
Unique RPR Capabilities
A single RPR ring is really a pair of counter-rotating fiber rings that use special layer 2 signaling to build ring topology information and sense link failures between any two devices on the ring. To better understand how IS-IS interacts with an RPR ring, we'll first quickly consider two of these capabilities, spatial bandwidth utilization and ring wrap, and ...
Get IS-IS: Deployment in IP Networks now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
