Ciena CN 3960, Hardware Installation Manual, Page: 69 / 72

CN 3960 Hardware Installation Guide
T
TLS
(Transparent LAN Services) allows two or
more LANs that are separated geographically
to be made to appear as one single LAN.
U
UMF
(Unknown Multicast Filtering) filters all
multicast streams that are not controlled by
IGMP snooping in order to prevent these
streams from being flooded to all ports on the
device.
UNI
(User Network Interface) is a demarcation
point between the responsibility of the service
provider and the responsibility of the
subscriber. This is distinct from a Network to
Network Interface or NNI that defines a similar
interface between provider networks.
V
Virtual Circuit
is a logical connection used to
carry a service.
VLAN
(Virtual Local Area Network) is a logical
element used to group resources that have a
common set of requirements together,
regardless of where they are located
physically.
VPLS
(Virtual Private LAN Service) is a class of
VPN that allows the connection of multiple sites
in a single bridged domain over a provider
managed MPLS network.
VPN
(Virtual Private Network) allows a
subscriber to seamlessly connect networks at
various locations and make them appear and
behave as if they were on the same physical
network.
W
WMF
(Well-known Multicast Filtering) allows
configured router protocols or other special
addresses in the multicast range (referred to
as well-known multicast groups) to be
forwarded when UMF is enabled.
X
XFP
(10 Gigabit Small Form-factor Pluggable) is
a hot-pluggable, protocol independent, optical
transceiver that can be installed into a unit to
provide 10 Gigabit service in a port. Different
wavelength and modes of XFPs are available.
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