Re: Beowulf channel bonding and typo

Thomas Davis (tadavis@lbl.gov)
Thu, 13 May 1999 10:23:05 -0700


George Bonser wrote:
>
> How does it behave if you disconnect one of the ethernet cables?

Probably the same as my patch did.

I've talked to Don Becker about, we have an idea of a solution, I'm just
waiting to see what happens.

Note - if your using tulip based cards, you will see problems when you
pull the cable out.

Oh, what is the possible solution?

We talked about using the IFF_RUNNING flag - if your plugged into the
network, and connection is good (ie, 100BaseT, you've got a carrier
detected), you get IFF_RUNNING. If the carrier drops, IFF_RUNNING is
removed (network connection is gone - you can't run anymore, since the
resource has disappeared!)

Only one major problem with this - no driver implements it yet.

-- 
------------------------+--------------------------------------------------
Thomas Davis		| PDSF Project Leader
tadavis@lbl.gov		| 
(510) 486-4524		| "Only a petabyte of data this year?"

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