Web Management; Abbreviation - KTI Networks KFS-2621 User Manual

4. Web Management

4.1 Abbreviation

Ingress Port: Ingress port is the input port on which a packet is received.
Egress Port: Egress port is the output port from which a packet is sent out.
IEEE 802.1Q Packets: A packet which is embedded with a VLAN Tag field
VID: VLAN identifier, 12-bit field identifies the VLAN to which the frame belongs to.
Untagged packet: A standard Ethernet frame with no VLAN Tag field
Priority-tagged packet: An IEEE 802.1Q packet which VID filed value is zero (VID=0)
VLAN-Tagged packet: An IEEE 802.1Q packet which VID filed value is not zero (VID<>0)
DSCP: Differentiated Service Code Point, 6-bit value field in an IP packet
VLAN Table lookup: The process of searching VLAN table to find a VLAN which matches the given VID index
MAC address table lookup: The process of searching MAC address table to find a MAC entry which matches
the given destination MAC address and the port where the MAC address is located
Packet forwarding: also known as packet switching in a network switch based on MAC address table and
VLAN table information
VLAN forwarding: the operation that a packet is forwarded to an egress destination port based on VLAN
table information
VLAN group: configuration information about a VLAN which can be recognized in the switch. The
information includes a VID associated to the VLAN, member ports, and some special settings.
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