Consider the following escenario: a small enterprise network. One fortigate, 3 cisco 3560 multilayer switches, and several (around 8 or so) cheaper L2 switches (TP-link and Dlink). All users are connected to the L2 switches, which in turn are connected to the multilayer ones. There's a VM running Issabel, several IP phones distributed between the different departments. The network is really messy, I was recently hired to redesign it, using only the available infraestructure, meaning we probably won't buy any new switches/routers/anything, at least not anytime soon. My biggest concern is the voip service, nearly all users report a very deficient experience when using the ip phones. I was thinking maybe I could implement QoS policies. The cheap L2 switches supposedly support 802.1p priority tagging. My question is, is this feature useful in any way? Will the cisco 3560 be able to see/use this tag? How can I use it?
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Hi everyone. I need to do some traffic analysis on a small network, we have a 3560x switch, several 2960s switches, one fortigate 200e, and of course a couple hundred computers. If I want to do this, is SPAN my only choice? From what I´ve read, SPAN seems to be a traffic monitoring tool, not a traffic analysis tool like sflow or netflow are. What can I do?
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