Lucent Technologies PortMaster, Руководство по настройке

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Glossary
Glossary-19
LCP
Link Control Protocol. The protocol used by the Point-to-Point Protocol (PPP) for
establishing, configuring, and testing the data link connection.
LED
Light-emitting diode.
line speed
The speed of the physical wire attached to the interface or interface hardware. The line
speed is 10Mbps for Ethernet and 1.544Mbps for T1. Fractional T1 is often implemented
with a wire speed of T1 (1.544Mbps) and a lower port speed. Upgrading line speed is
generally a hardware change. See also
port speed .
Link Control Protocol
See LCP .
link state advertisement
See LSA .
LMI
Local Management Interface. A protocol used to communicate link status and permanent
virtual circuit (PVC) status in Frame Relay. Two types of LMI are available on Frame
Relay: the original proprietary Cisco/Stratacom LMI, and the ANSI T1.617 Annex-D LMI.
Although the PortMaster supports both, LMI on the PortMaster refers to the
Cisco/Stratacom implementation. See also
Annex-D .
local area network
See LAN .
Local Management Interface
See LMI .
local preference
In BGP, the degree-of-preference number that the PortMaster assigns to every external
route it advertises to an internal or confederation-member BGP peer. A higher number
indicates a greater preference for a route when more than one exists to a destination.
Internal and confederation-member peers receiving this route use this local preference
rather than calculating their own degree of preference for a route. You can use a routing
policy rule to override this value and assign your own local preference to a route you
advertise. See also
degree of preference .