Dedicated Token Ring Concentrator MIB

Document Type Expired Internet-Draft (individual)
Authors K. Lee  , T. Warwick 
Last updated 1997-12-31 (latest revision 1997-03-06)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document contains an extract from the approved text of IEEE standard 802.5R ''Dedicated Token Ring''. The extract comprises the MIB for the Dedicated Token Ring Concentrator, in SNMPv2 format. The changes from the previous version of this draft are small but important, and are in the area of CRF creation, where a RowStatus mechanism replaces the previous way of creating CRFs. 802.5R is a standard that encompasses the existing 802.5 token- passing method of operation, and also defines a new duplex method of operation for use only on dedicated point to point links, that does not use tokens for data transmission. The architecture of a DTR Concentrator is defined in the 802.5R standard. It is a MAC layer bridging device, which uses a new set of forwarding rules that ease interoperability between source routing and transparent bridging in an 802.5 LAN. The DTR Concentrator MIB is derived from the Source Routing and Transparent Bridge MIBs (RFCs 1525 and 1493).


K. Lee (
T. Warwick (

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