Kevin, The primary difference between PVC's and SVC's are that PVC's are "always on" connections and SVC's are "established upon need". Think of it like the difference between the batphone and a regular phone. The batphone always reaches a single destination and never dials. This is like a PVC. A standard phone can call one of several destinations, but each connection must be established beforehand, and only exists until it is no longer needed. This is like an SVC.
As for the switching path through the cloud, as far as I know (keep in mind that I do not work for a telco), both VC's normally have a static path through the cloud once established. ATM can also make use of a special type of connection, known as a SPVC, which has a permanent connection from the client to provider, but a dynamic connection from switch to switch inside the cloud. Hope this helps, Brian Hill CCNP, CCDP, MCSE 2000 (Charter Member),MCSE+I (NT4.0), MCSA (Charter Member), MCP+I, MCP(21), Inet+, Net+, A+ Lead Technology Architect, TechTrain Author: Cisco, The Complete Reference http://www.alfageek.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=44129&t=44117 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
