3Com OfficeConnect 3CDSG10PWR User Manual page 239

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Extensible EAPOL is a client authentication protocol used by this switch to verify
Authentication the network access rights for any device that is plugged into the
Protocol over LAN switch. A user name and password is requested by the switch, and
(EAPOL) then passed to an authentication server (e.g., RADIUS) for verification.
EAPOL is implemented as part of the IEEE 802.1X Port Authentication
standard.
Generic Multicast GMRP allows network devices to register end stations with multicast
Registration Protocol groups. GMRP requires that any participating network devices or end
(GMRP) stations comply with the IEEE 802.1p standard.
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 end stations to different virtual
LANs, and defines a standard way for VLANs to communicate across
switched networks.
IEEE 802.1p An IEEE standard for providing quality of service (QoS) in Ethernet
networks. The standard uses packet tags that define up to eight traffic
classes and allows switches to transmit packets based on the tagged
priority value.
IEEE 802.1s An IEEE standard for the Multiple Spanning Tree Protocol (MSTP) which
provides independent spanning trees for VLAN groups.
IEEE 802.1X Port Authentication controls access to the switch ports by requiring
users to first enter a user ID and password for authentication.
IEEE 802.3ac Defines frame extensions for VLAN tagging.
IEEE 802.3x Defines Ethernet frame start/stop requests and timers used for flow
control on full-duplex links.
IGMP Snooping Listening to IGMP Query and IGMP Report packets transferred between
IP Multicast Routers and IP Multicast host groups to identify IP Multicast
group members.
IGMP Query On each subnetwork, one IGMP-capable device can act as the querier
— that is, the device that asks all hosts to report on the IP multicast
groups they wish to join or to which they already belong. The elected
querier is the device with the lowest IP address in the subnetwork.