FibroLAN Falcon-RX/812/G/A User Manual page 323

Falcon R-Class | User Guide
LACP
LACP is an IEEE 802.3ad standard protocol. The Link Aggregation Control Protocol, allows bundling
several physical ports together to form a single logical port.
LLC
The IEEE 802.2 Logical Link Control (LLC) protocol provides a link mechanism for upper layer
protocols. It is the upper sub-layer of the Data Link Layer and provides multiplexing mechanisms that
make it possible for several network protocols (IP, IPX) to coexist within a multipoint network. LLC
header consists of 1-byte DSAP (Destination Service Access Point), 1 byte SSAP (Source Service Access
Point), 1 or 2 bytes Control field followed by LLC information.
LLDP
LLDP is an IEEE 802.1ab standard protocol.
The Link Layer Discovery Protocol (LLDP) specified in this standard allows stations attached to an IEEE
802 LAN to advertise, to other stations attached to the same IEEE 802 LAN, the major capabilities
provided by the system incorporating that station, the management address or addresses of the
entity or entities that provide management of those capabilities, and the identification of the stations
point of attachment to the IEEE 802 LAN required by those management entity or entities. The
information distributed via this protocol is stored by its recipients in a standard Management
Information Base (MIB), making it possible for the information to be accessed by a Network
Management System (NMS) using a management protocol such as the Simple Network Management
Protocol (SNMP).
LLDP-MED
LLDP-MED is an extension of IEEE 802.1ab and is defined by the telecommunication industry
association (TIA-1057).
LOC
LOC is an acronym for Loss Of Connectivity and is detected by a MEP and is indicating lost connectivity
in the network. Can be used as a switch criteria byEPS
MAC Table
Switching of frames is based upon the DMAC address contained in the frame. The switch builds up a
table that maps MAC addresses to switch ports for knowing which ports the frames should go to (
based upon the DMAC address in the frame ). This table contains both static and dynamic entries.
The static entries are configured by the network administrator if the administrator wants to do a
fixed mapping between the DMAC address and switch ports.
The frames also contain a MAC address ( SMAC address ), which shows the MAC address of the
equipment sending the frame. The SMAC address is used by the switch to automatically update the
MAC table with these dynamic MAC addresses. Dynamic entries are removed from the MAC table if
no frame with the corresponding SMAC address have been seen after a configurable age time.
MEP
MEP is an acronym for Maintenance Entity Endpoint and is an endpoint in a Maintenance Entity
Group (ITU-T Y.1731).
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