Interlogix NS4702-24P-4S-4X, User Manual

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VLAN aware switching:
This is based on the IEEE 802.1Q standard. All ports are VLAN aware. Ports connected to VLAN
aware switches are members of multiple VLANs and transmit tagged frames. Other ports are members of one VLAN, set
up with this Port VLAN ID, and transmit untagged frames.
Provider switching:
This is also known as Q-in-Q switching. Ports connected to subscribers are VLAN unaware,
members of one VLAN, and set up with this unique Port VLAN ID. Ports connected to the service provider are VLAN aware,
members of multiple VLANs, and set up to tag all frames. Untagged frames received on a subscriber port are forwarded to
the provider port with a single VLAN tag. Tagged frames received on a subscriber port are forwarded to the provider port
with a double VLAN tag.
VLAN ID
VLAN ID is a 12-bit field specifying the VLAN to which the frame belongs.
Voice VLAN
Voice VLAN is VLAN configured specially for voice traffic. By adding the ports with voice devices attached to voice VLAN,
we can perform QoS-related configuration for voice data, ensuring the transmission priority of voice traffic and voice quality.
W
WEP
WEP is an acronym for
W
ired
E
quivalent
P
rivacy. WEP is a deprecated algorithm to secure IEEE 802.11 wireless networks.
Wireless networks broadcast messages using radio, so are more susceptible to eavesdropping than wired networks. When
introduced in 1999, WEP was intended to provide confidentiality comparable to that of a traditional wired network
(Wikipedia).
WiFi
WiFi is an acronym for
Wi
reless
Fi
delity. It is meant to be used generically when referring of any type of 802.11 network,
whether 802.11b, 802.11a, dual-band, etc. The term is promulgated by the Wi-Fi Alliance.
WPA
WPA is an acronym for
W
i-Fi
P
rotected
A
ccess. It was created in response to several serious weaknesses researchers had
found in the previous system , Wired Equivalent Privacy (WEP). WPA implements the majority of the IEEE 802.11i standard,
and was intended as an intermediate measure to take the place of WEP while 802.11i was prepared. WPA is specifically
designed to also work with pre-WPA wireless network interface cards (through firmware upgrades), but not necessarily with
first generation wireless access points. WPA2 implements the full standard, but will not work with some older network cards
(Wikipedia).
WPA-PSK
WPA-PSK is an acronym for
W
i-Fi
P
rotected
A
ccess -
P
re
S
hared
K
ey. WPA was designed to enhance the security of