Jimmy wrote: > > Hi, > Just want to clarify something. Let say i have middle-size > network which all > the switches (around 4) connected together to a router. The > backbone of the > network should be the toward the WAN side which is from the > router onsward > rite? Or is it the connection from the switch to the router? > > > > Switch-----Switch 1------\ > Hub -----Switch 2-------\ > Switch-----Switch 3-------/ Router ------ (Backbone) > Hub -----Switch 4------/ >
It's hard to say, but it looks like you have a collapsed backbone and it's the router. When multiple links converge into one device, such as a switch or router, then it's often called a collapsed backbone. Where does the WAN go? If it just accesses another network, such as the Internet, then it wouldn't normally be called a backbone. But if you have an enterprise network with a core of WAN links that connect campus LANs, you could call the WAN core the backbone of the enterprise network. Usually a backbone has more capacity than the other links in the network, however, and so usually a WAN link doesn't act as a backbone for LANs. A more usual use of the term would be a Gigabit Ethernet backbone that acts as the backbone for 10 and 100 Mbps Ethernet segments. It's not really a scientific term, though, and it gets used in many different ways. The idea is that when you draw your topolgoy, you will undoubtedly have some larger transmission link that aggregates traffic from smaller links. That larger link is a backbone. The drawing should look like the bone in your back that connects other bones. It's just an analogy. Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54600&t=54590 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
