Glossary
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.
Extended Universal Identifier (EUI)
An address format used by IPv6 to identify the host po rtion of the ne twork add ress.
The interface identifier in EUI compatible addresses is based on the link-layer (MAC)
address of an interface. Interface identifiers used in global unicast and o ther IPv6
address types are 64 bits long and may be construc ted in the EUI -64 form at. The
modified EUI-64 format interface ID is derived from a 48-bit link-lay er address b y
inserting the hexadecimal number FFFE between the upper three bytes (OUI field)
and the lower 3 bytes (serial number) of the link layer address. To ensure that the
chosen address is from a unique Ethernet MAC address, the 7th bit in the hig h-or der
byte is set to 1 (equivalent to the IEEE Global/Local bit) to indicate the uniqueness of
the 48-bit address.
Extensible Authentication Protocol over LAN (EAPOL)
EAPOL is a client authentication protocol used by this switch to verify the network
access rights for any device that is plugged into th e switch. A us er name and
password is requested by the switch, and then passed to an authentication server
(e.g., RADIUS) for verification. EAPOL is implemented as part of the IEEE 802.1X
Port Authentication standard.
GARP VLAN Registration Protocol (GVRP)
Defines a way for switches to exchange VLAN information in order to register
necessary VLAN members on ports along the Spanning Tree so that VLANs defined
in each switch can work automatically over a Spanning Tree network.
Generic Attribute Registration Protocol (GARP)
GARP is a protocol that can be used by endstat ions and s witches to regist er and
propagate multicast group membership information in a switched environment so
that multicast data frames are propagated only to those parts of a switche d LAN
containing registered endstations. Formerly called Group Address Registration
Protocol.
Generic Multicast Registration Protocol (GMRP)
GMRP allows network devices to register end stations with multicas t grou ps. GMRP
requires that any participating network devices or end stations comp ly with the IEEE
802.1p standard.
Group Attribute Registration Protocol (GARP)
See Generic Attribute Registration Protocol.
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