Switch User's Manual

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V
variable bit rate (VBR)
The capability of the encoding algorithm to
dynamically switch between 32 and 24 kbytes/s.
view-based access control model (VACM)
Provides context, group access, and group
security levels based on a predefined subset of
management information base (MIB) objects.
virtual connection (VC)
A communication channel that provides
sequential unidirectional transport of
Asynchronous Transfer Mode (ATM) cells
among ATM layer entities.
Virtual Link Aggregation Control Protocol (VLACP)
A Layer 2 handshaking protocol which can detect
end-to-end failure between two physical Ethernet
interfaces.
Virtual Local Area Network (VLAN)
Virtual LAN as defined in the IEEE 802.1Q
standard. VLANs divide the LANs into smaller
groups without interfering with the physical
network.
Virtual Private LAN Service (VPLS)
A multipoint virtual private network (VPN).
Virtual Private Network (VPN)
A private communications network that uses
public networks to transfer data. VPN users can
be in geographically separate locations.
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
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