[HECnet] "Dropped by adjacent node" ....

[Peter Lothberg]

When we where chasing another problem, it was found that packets
"disapear" in the Ethernet fabric at Update, sometimes.

I think you are referring to when we played with transfers and the 
performance drops to the floor. That is lost packets because of 
interface speed differences. They are not really lost, but there only so 
much that can be queued up in the fabric between interfaces with 
different speeds.

Maybe Johnny can make a small map of the current topology with all
involved things and the lan-speeds?

That would actually be useful either way, but I'm not sure I can do it 
easily.
	Johnny


If it was only ONE switch used for all the DECnet speaking things at
Update, it would be simple to make a drawing. And with only one device
per port, I think any resonable switch has enough buffers to make it
work way better.   

--P

(I might even find a switch that does it right and send it to Update)