Virtual Machine Network Connection - Speed


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Hiya,

I've got a virtual server running on Hyper-V, when I check the connection settings it says I'm connect at 10.0Gbps.

What I'd like to know is what speed am I actually connected to, as I know it's not 10gbps! (would be nice)

Physically it's wired to a gigabit pci-e card and cat6, so I'm guessing it's a gigabit connection or still 100mb (because it's virtual?)

According to ghost it's doing around 400MB/min, when I first started it, it was lingering around 800mb/min for a while then dropped down.

Just curious as I have plans to move it to a physical server, but if it's connected at a gig, then not too much point.

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Well 400MB/min is not gig speeds.. thats like 6.677MBps or 53Mbps

What network card is the virtual machine seeing? Are you running natted intefaces or bridged with the physical?

Now if you were

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The card in my server is a pci-e 10/100/1000 and the server sees that as 1gbps, which is fine, just the virtual machine then goes and see's 10.0gbps

This is dedicated to the virtual server only, so no bridging etc

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The 10gbps reported speed is the speed of the connection from the virtual machine to the virtual switch. Yea it's kind of annoying to see, but basically it can do greater than 1gbps between VM and VS, and if you have two VMs on the same VS, it can do up to 10gbps between them.

Any communication outside of the physical host though, and you're limited to the physical connection speed.

http://social.technet.microsoft.com/Forums/en-US/winserverhyperv/thread/27b8312f-b7e8-4381-9274-3ec71266bd2a/

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Well 400MB/min is not gig speeds.. thats like 6.677MBps or 53Mbps

What network card is the virtual machine seeing? Are you running natted intefaces or bridged with the physical?

Now if you were

Indeed.

I guess there could be a number of factors why he's seeing such speeds.. the host he's on could have contended resources or the host he's copying off might not be that quick either, giving the slow speeds.

OP - the only way you're going to be able to saturate a 1Gbps network connection really is with SSD's in both the source and destination hosts, or perhaps with some decent HDD's in RAID0...

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Hmm, well the rest of my network is at gig, and I get near spot on the transfer speeds I should get, which is good.

So my virtual machine connection is likely to be 100mb, but showing a lot less?

Happy with that, means I get to build another server :)

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