Dell PowerConnect 5524P User Manual page 709

V
VLAN
Virtual Local Area Networks.
Logical subgroups with a Local Area Network
(LAN) created via software rather than defining a hardware solution.
VoIP
Voice over IP .
W
WAN
Wide Area Networks
. Networks that cover a large geographical area.
Wildcard Mask
Specifies which IP address bits are used, and which bits are ignored. A wild
switch module mask of 255.255.255.255 indicates that no bit is important. A
wildcard of 0.0.0.0 indicates that all the bits are important.
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Dell PowerConnect 55xx Systems User Guide