[openib-general] IB: I don't like what I'm seeing.

Thu Apr 1 07:40:30 PST 2004

>On Thu, 1 Apr 2004, Stephen Poole wrote:
>
>>  >But I submit that it's not possible to do truly end-to-end error checking,
>>  >by which I mean checking for all possible errors from beginning to end of a
>>  >job.  So where do you want to draw the line?  What/how much do you have to
>>  >check to give you an acceptable level of confidence?  And it shouldn't be
>>  >necessary to do as much checking on small jobs as on large jobs.
>>
>>  *IF* you check at each point in the link, then you can come close to
>>  guaranteeing that the traffic is safe. But your point is well taken,
>>  that is a drastic measure and can really only be done in HW.
>
>At the same time, this is exactly the strategy that broke NFS when routers
>came out. I'm talking 10 Mbit ethernet here. link-by-link was not
>end-to-end. We all knew this and yet it all surprised everyone.

It was meant a a "theoretical" approach. Not sure you would actually 
want to do it. It would be darned costly.

>
>ron
>
>
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