TP-LINK TL-SG2424P User Manual Page 173

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Appendix C: Glossary
Boot Protocol (BOOTP)
BOOTP is used to provide bootup information for network devices, including IP address
information, the address of the TFTP server that contains the devices system files, and the name
of the boot file.
Class of Service (CoS)
CoS is supported by prioritizing packets based on the required level of service, and then placing
them in the appropriate output queue. Data is transmitted from the queues using weighted
round-robin service to enforce priority service and prevent blockage of lower-level queues. Priority
may be set according to the port default, the packet’s priority bit (in the VLAN tag), TCP/UDP port
number, or DSCP priority bit.
Differentiated Services Code Point (DSCP)
DSCP uses a six-bit tag to provide for up to 64 different forwarding behaviors. Based on network
policies, different kinds of traffic can be marked for different kinds of forwarding. The DSCP bits
are mapped to the Class of Service categories, and then into the output queues.
Domain Name Service (DNS)
A system used for translating host names for network nodes into IP addresses.
Dynamic Host Control Protocol (DHCP)
Provides a framework for passing configuration information to hosts on a TCP/IP network. DHCP
is based on the Bootstrap Protocol (BOOTP), adding the capability of automatic allocation of
reusable network addresses and additional configuration options.
Generic Attribute Registration Protocol (GARP)
The GARP provides a generic attribute dissemination capability that is used by participants in
GARP Applications (GARP Participants) to register and de-register attribute values with other
GARP Participants within a Bridged LAN. The definition of the attribute types, the values that they
can carry, and the semantics that are associated with those values when registered, are specific to
the operation of the GARP Application concerned.
Generic Multicast Registration Protocol (GMRP)
GMRP allows network devices to register end stations with multicast groups. GMRP requires that
any participating network devices or end stations comply with the IEEE 802.1p standard.
Group Attribute Registration Protocol (GARP)
See Generic Attribute Registration Protocol.
IEEE 802.1D
Specifies a general method for the operation of MAC bridges, including the Spanning Tree
Protocol.
IEEE 802.1Q
VLAN Tagging—Defines Ethernet frame tags which carry VLAN information. It allows switches to
assign endstations to different virtual LANs, and defines a standard way for VLANs to
communicate across switched networks.
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