KTI Networks KFS-2621 Bedienungsanleitung PDF herunterladen (Seite 23)

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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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KTI Networks KFS-2621 Bedienungsanleitung Seite 23