Date   : Tue, 14 Jul 2009 13:07:24 +0100
From   : pete@... (Pete Turnbull)
Subject: Master Ethernet upgrade

On 14/07/2009 09:14, Mark Usher wrote:

> That is also subjective to interpretation as to what criteria the network
> technologies are comparative.

It's not subjective at all.  It's well-defined elsewhere.

A final couple of references, from sources which are not Ethernet-specific:

Local Area Networks, Prentice Hall, 1984, page 168: "a bridge operates 
at the data link level.  A bridge can be used for for networks that use 
different protocols at the physical layer as long as they have a common 
protocol at the data link layer".

Data and Computer Communications, John Wiley, 1989 (this is a well-known 
dictionary of terms), page 30:  "bridge: the interconnection between two 
networks using the same communications method, the same kind of 
transmission mediium, and the same addressing structure; also the 
equipment used in such an interconnection.  Bridges operate at the data 
link layer of the OSI model."


-- 

Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York