Title: The Cisco SRP MAC Layer Protocol
Author(s): D. Tsiang, G. Suwala.
Status: INFORMATIONAL
Date: Aug 2000
Length: 107645
This document specifies the MAC layer protocol, "Spatial Reuse Protocol" (SRP) for use with ring based media. This is a second version of the protocol (V2).
The primary requirements for SRP are as follows:
- Efficient use of bandwidth using:
spatial reuse of bandwidth
local reuse of bandwidth
minimal protocol overhead
- Support for priority traffic
- Scalability across a large number of nodes or stations attached to
a ring
- "Plug and play" design without a software based station management
transfer (SMT) protocol or ring master negotiation as seen in
other ring based MAC protocols [1][2]
- Fairness among nodes using the ring
- Support for ring based redundancy (error detection, ring wrap,
etc.) similar to that found in SONET BLSR specifications.
- Independence of physical layer (layer 1) media type.
This document defines the terminology used with SRP, packet formats, the protocol format, protocol operation and associated protocol finite state machines.
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