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TCP-group 1991


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MAC sublayer proposal (really: ethernet ctlr on radio)



Funny you should mention your PCLAN cards, Glenn.  I just looked up
that article a couple of nights ago.  Good reading.  But one question
remains.  Do you use the cards in CSMA/CD mode?  How do you get around
the problem of Ethernet's alpha<1 limtation?  At 1 Mbps, that's something
on the order of 20 km or so, right?  Or is it just a 2-way link with
no contention?  (In the latter case, I could see building a simple
DMA serial controller in lieu of an Ethernet controller.)

Does the PCLAN card include the broadband-Ethernet scrambler?  I presume
you'd need it on the air, or do you?  Given the low price of true
Ethernet cards nowadays and the relatiave rarity of the old PCLAN
cards, I wonder which ones can be made to work beyond Ethernet normal
distances.
   fred





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Created 2004-12-21. Last modified 2004-12-21. Your visit 2020-10-27 16:11.49. Page created in 0.0336 sec.
 
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