Lantech LGS-2624C, User Manual, Page: 127 / 279

network policy is defined for use with an 'untagged' VLAN (see Tagged flag
below), then the L2 priority field is ignored and only the DSCP value has
relevance.
6. Video Conferencing - for use by dedicated Video Conferencing
equipment and other similar appliances supporting real-time interactive
video/audio services.
7. Streaming Video - for use by broadcast or multicast based video content
distribution and other similar applications supporting streaming video
services that require specific network policy treatment. Video applications
relying on TCP with buffering would not be an intended use of this
application type.
8. Video Signalling (conditional) - for use in network topologies that require
a separate policy for the video signalling than for the video media. This
application type should not be advertised if all the same network policies
apply as those advertised in the Video Conferencing application policy.
Tag
Tag indicating whether the specified application type is using a 'tagged' or
an 'untagged' VLAN.
Untagged indicates that the device is using an untagged frame format and
as such does not include a tag header as defined by IEEE 802.1Q-2003. In
this case, both the VLAN ID and the Layer 2 priority fields are ignored and
only the DSCP value has relevance.
Tagged indicates that the device is using the IEEE 802.1Q tagged frame
format, and that both the VLAN ID and the Layer 2 priority values are being
used, as well as the DSCP value. The tagged format includes an additional
field, known as the tag header. The tagged frame format also includes
priority tagged frames as defined by IEEE 802.1Q-2003.
VLAN ID
VLAN identifier (VID) for the port as defined in IEEE 802.1Q-2003.