EMC DS-8B manual Glossary

Glossary

K

K28.5 Special 10-bit character used to indicate beginning of transmission words that perform fibre channel control and signaling functions. First seven bits are comma pattern. See also Comma.

L

L_Port Loop Port. Node or fabric port that can use loop protocol or fabric protocol. See also Non-participating mode, Participating mode.

Latency Time required to transmit a frame, from the time sent until time of arrival.

Link As applies to fibre channel, a physical connection between two ports, consisting of both transmit and receive fibres. See also Circuit.

Link services Protocol for link-related actions.

LIP Loop Initialization Primitive. The signal used to begin initialization in a loop. Indicates either loop failure or resetting of a node. See also Loop initialization.

Loop failure Loss of signal within a loop for any period of time, or loss of synchronization for longer than the time-out value. See also E_D_TOV.

Loop initialization Logical procedure used by L_Ports to discover environment. Can be used to assign AL_PA addresses, detect loop failure, or reset a node. See also LIP.

Loop_ID Hex value representing one of 127 possible AL_PA values in a loop.

Looplet Set of devices connected in a loop to a port that is part of another loop.

LPSM Loop Port State Machine. Logical entity that performs arbitrated loop protocols and defines behavior of L_Ports when they require access to arbitrated loop.

LWL Long wavelength fibre optic cable. Based on 1300 nm lasers supporting 1.0625 Gbps link speeds. Connectors are color-coded blue. See also SWL.

g-8

Departmental Switch Models DS-16B and DS-8B Web Tools User Guide