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List of terms
virtual circuit (VC), frame relay networking
In frame relay networking, the equivalent of a physical connection to a destination address using shared facilities. Virtual circuits can be permanent (PVC) or switched (SVC). The virtual circuit is anchored in the function processors that are connected to the end user devices.
Virtual Circuit System (VCS)
The software system that allows Nortel Multiservice Switch networks to offer virtual circuits.
virtual interface
In ATM networking, an interface that is configured under a virtual path terminator, permitting multiple virtual interfaces under a single port. This configuration contrasts with actual or real interfaces that have a
virtual IP router (VIPR)
Virtual IP router (VIPR) is an IP service that provides basic IP routing in a flat IP network.This service is also referred to as Basic IP.
virtual LAN (VLAN)
IEEE 802.1Q Ethernet virtual LAN (VLAN) is a subset of the active topology of a Bridged LAN. A VID is associated with each VLAN.
virtual link (VL)
An IMA virtual link refers to the combination of multiple physical links that use the inverse multiplexing process to transmit traffic across these links. A virtual link is presented as a single link to the ATM layer. A VL originates on one FP running the IMA feature and terminates on another FP running the IMA feature. Typically, these two FPs are on two different Nortel Multiservice Switch nodes. Any virtual link can consist of a maximum of eight DS1/E1 physical links on an FP running IMA.
Virtual Media (VM)
Virtual Media (VM) is a Nortel Networks proprietary, hardware independent broadcast medium. VM is not associated with a physical port but rather a logical interface.
virtual path (VP)
In frame relay, the equivalent of a physical connection to a destination address using shared facilities. Virtual paths can be permanent (PVP) or switched (SVP). The virtual path is anchored in the function processors that are connected to the end user devices.
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
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