McDATA 4500 User Manual

A comparison of the number of bits received incorrectly by a device 
to the total number of bits transmitted.

Devices communicating with the port are prevented from logging 
into the switch or communicating with other devices attached to the 
switch. A blocked port continuously transmits the offline sequence. 

Device that connects and passes packets between two network 
segments that use the same communications protocol.

Send a transmission to all N_Ports on a fabric.

Data packet, also known as a broadcast packet, whose destination 
address specifies all computers on a network. See also multicast.

Storage area for data in transit. Buffers compensate for differences in 
processing speeds between devices. 

See channel path identifier.

Product feature which enables the EFC Server to automatically dial 
out to a support center and report system problems. The support 
center server accepts calls from the EFC Server, logs reported events, 
and can notify one or more support center representatives.

Point-to-point link that transports data from one point to the other.

A single interface between a central processor and one or more 
control units along which signals and data can be sent to perform I/O 
requests.

In a channel subsystem, a value assigned to each installed channel 
path of the system that uniquely identifies that path to the system.

Defines the level of connection dedication, acknowledgment, and 
other characteristics of a connection.

Used by switches to communicate across interswitch links (ISLs) to 
configure, control, and coordinate a multiswitch fabric.