[e2e] a problem...

[Puddinhead Wilson]

Hi there!

I have 
N1----->N2

link from N1 to N2 is physical wire/unidirectional
wave guide.


No reverse connection possible

1. if the media is copper, how does N1 detect that
link N1-N2 is down so it should not transmit? (i think
i can solve this one)
2. if the media is fiber/wireless how will i solve
this? (i dont know how to this one :( )

any takers?



	
	
		
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