Been using Cacti now for ages, but something has come up again and again, and I get confused again and again, I hope somebody can help me get this through my head once and for all.
So we have a network with Bladecentres, blades, bunch of Ciscos all the normal funky stuff, and we use Cacti to monitor lots of things, but my question is around networks.
The question is about how what I see on the graphs compare to real life network speeds (and how quick they links can and should go).
The attached graph is from a link dedicated for SAN traffic (own MST instance), this is x4 Gig links in Etherchannel (Bonded). I then moved a large file from one SAN to another, I am not supprised that I will only use 1 of my 4 links, and the source MAC is fixed, so I am thinking this should be pushing one of my Etherchannel links somewhere close to its top speed.
- Current Graph
- Cacti-Graph.jpg (162.27 KiB) Viewed 1216 times
http://en.wikipedia.org/wiki/List_of_device_bandwidths
Shows Gigabit Ethernet to allow a spped of 1 Gbits/s or Fast Ethernet to have a capacity of 100Mbps, so based on that I am running at less than Fast Ethernet, and if I look around my network, I dont see anything running much faster. So I must be getting my bits and bytes all mucked up, or am missing something so obvious that you will all have a right laugh at me.
I suspect top speed for Gig is 125Mbps, and by the time you mess about real world will be less so my speeds are in fact good, unsure though why all my math is messing me about.
Could be that I am getting slow speeds and I need to dig in deeper.
So can anybody give me a answer to what speed 72.95Mbps compares to real life link speed if say a Gig link??
Thanks for reading, hope I covered everything.
