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Old 13-05-2011, 19:11   #2213
zekeisaszekedoes
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Location: Hampshire, UK
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Re: [Update] ALL 20>30Mb upgrade discussion

To go into a little more depth on what I was told yesterday during the conversation I had with one of the aces in the CEO's office, VM is basically using two main kinds of UBRs across their network. One is made by Motorola, the other I didn't catch. It seems that the Super Hub is fine on one but problematic on the other. That's almost verbatim what I was told.

On top of that, I speculate that the manufacturing process is a little slapdash, meaning that on top of the UBR issue there are Super Hubs which don't work properly on any part of the VM network.

I also passed one of my tips on how to break a Super Hub: copy a large file (>4GB) from a gigabit ethernet machine to (for example) a wireless N laptop running at 300Mbps. In my experience at some point the Super Hub will hang requiring a reboot.
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