ISO/IEC TR 11802-5:1997 PDF

For the purpose of facilitating the interoperability of ISO/IEC 10038 MAC Bridges and end stations in bridged LANs comprising CSMA/CD networks containing a mixture of ISO/IEC 8802-3 and Ethernet end stations and other types of LANs, this Technical Report specifies extensions to the behavior of MAC Bridges. To this end this Technical Report

• Extends the Bridge service interface model to support multiple MAC services on a single LAN and to add a Bridge-Tunnel service interface.
• Defines the Selective Translation Algorithm used by a Bridge to convert between Ethernet and ISO/ IEC 8802 frame formats.
• Defines the protocols used by a Bridge to convey Ethernet frames across ISO/IEC 8802 LANs, the Bridge-Tunnel Encapsulation Protocol, and the RFC1042 Encapsulation Protocol.

Additionally, for the purpose of avoiding future incompatibilities, this Technical Report provides guidelines for the development of nonstandard ISO/IEC 8802 protocols, with particular emphasis on conversion of existing Ethernet protocols and the behavior to be expected from a Bridge.