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- Newsgroups: comp.dcom.lans.ethernet
- Path: sparky!uunet!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!jvnc.net!nuscc!ccewch
- From: ccewch@nuscc.nus.sg (Wong Chee Heng)
- Subject: Re: what is SQE (DUMB QUESTION!)
- Message-ID: <1992Sep2.091738.4218@nuscc.nus.sg>
- Organization: National University of Singapore
- References: <1992Aug27.084200.1@pa881a.inland.com>
- Date: Wed, 2 Sep 1992 09:17:38 GMT
- Lines: 15
-
- nason@pa881a.inland.com writes:
- : circuitry. Each MAU under 802.3 must be have a provision to manually turn off
- : the SQE test. This is done for a variety of reasons. If the MAU is connected
- : to a repeater, or if the MAU is connected to a Ethernet V2 device.
- :
- : One of the differences between 802.3 and ethernet V2 is the collision detect
- :circuitry test. Under Ethernet it is called the Collsion Presence Test. Under
- : 802.3 it is called the SQE test. In your appliction, you want SQE test turned
- : on.
- :
- Why SQE must be turned off when connecting to Ethernet V2 device? If the problem
- is due to some incompatibilties of the two standards, shouldn't there be a
- special MAU for Ethernet v2 device that allow SQE enabled? SQE seems to be
- a good feature
-
-