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Glossary
Avaya P460 Reference Guide 213
Virtual Channel
Describes the unidirectional flow of ATM cells between connecting (switching or
end-user) points that share a common identifier number.
Virtual Circuit
A connection set up across an ATM network between a source and a destination
where a fixed route is chosen for the entire session and bandwidth is dynamically
allocated.
Virtual Connection
A connection established between end-users (source and destination), where
packets are forwarded along the same path and bandwidth is not permanently
allocated until it is used.
Virtual Path
A group of virtual channels that can support multiple virtual circuits.
VSA
Vendor-Specific Attribute. RADIUS supports attributes of which one, the VSA,
supports vendor-specific attributes. This allows vendors to create custom RADIUS
attributes.