Glossary

bandwidth

The width of a communications channel measured in Hertz - cycles

 

per second. In digital communications, bandwidth is measured in

 

bits per second (bps).

BB_Credit

Buffer to Buffer Credit, a flow control method that maintains

 

counters for outstanding frames between two connected Fibre

 

Channel hops.

Broadcast and Unknown

A LAN emulation component that receives all broadcast and

Server

multicast MAC packets as well as MAC packets with an unknown

 

ATM address and transmits these messages to every member of an

 

emulated LAN.

BUS

See Broadcast and Unknown Server.

bus number

A bus number is assigned to every physical trunk or link that

 

connects two UltraNet Edge 3000. Routing software on the UltraNet

 

Edge 3000 uses the bus number to determine the trunks or links that

 

should be used to transfer data across the network.

CBR

ATM Constant Bit Rate

CRC

Abbreviation of Cyclic Redundancy Check, a common technique

 

for detecting data transmission errors. A number of file and block

 

transfer protocols use CRC in addition to checksum.

data migration

The movement of data from one storage subsystem to another.

Device Extension

See FC/SCSI Tape Pipelining.

Glossary

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McDATA 3000 manual Glossary