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LOSSARY
broadcast storm
Multiple simultaneous broadcasts that typically absorb all the available
network bandwidth and can cause a network to fail. Broadcast storms
can be due to faulty network devices.
collision
A term used to describe two colliding packets in an Ethernet network.
Collisions are a part of normal Ethernet operation, but a sudden
prolonged increase in the number of collisions can indicate a problem
with a device, particularly if it is not accompanied by a general increase
in traffic.
CSMA/CD
Carrier-sense Multiple Access with Collision Detection. The protocol
defined in Ethernet and IEEE 802.3 standards in which devices transmit
only after finding a data channel clear for a period of time. When two
devices transmit simultaneously, a collision occurs and the colliding
devices delay their retransmittions for a random length of time.
endstation
A computer, printer or server that is connected to a network.
Ethernet
A LAN specification developed jointly by Xerox, Intel and Digital
Equipment Corporation. Ethernet networks use CSMA/CD to transmit
packets at a rate of 10 Mbps over a variety of cables.
Ethernet address
See
MAC address
.
Fast Ethernet
An Ethernet system that is designed to operate at 100 Mbps.
forwarding
The process of sending a packet toward its destination using a
networking device.
filtering
The process of screening a packet for certain characteristics, such as
source address, destination address, or protocol. Filtering is used to
determine whether traffic is to be forwarded, and can also prevent
unauthorized access to a network or network devices.
flow control
A congestion control mechanism. Congestion is caused by devices
sending traffic to already overloaded port on a Switch. Flow control
prevents packet loss and and inhibits devices from generating more
traffic until the period of congestion ends.
full duplex
A system that allows packets to be transmitted and received at the
same time and, in effect, doubles the potential throughput of a link.
half duplex
A system that allows packets to transmitted and received, but not at
the same time. Contrast with
full duplex
.
F24usr.bk Page 82 Thursday, January 14, 1999 10:41 AM
Summary of Contents for Nways 8271 F12
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Page 10: ...10 SAFETY NOTICES F24usr bk Page 10 Thursday January 14 1999 10 41 AM...
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Page 12: ...12 SAFETY NOTICES F24usr bk Page 12 Thursday January 14 1999 10 41 AM...
Page 16: ...16 ABOUT THIS GUIDE F24usr bk Page 16 Thursday January 14 1999 10 41 AM...
Page 28: ...28 CHAPTER 1 INTRODUCING THE SWITCH F24usr bk Page 28 Thursday January 14 1999 10 41 AM...
Page 43: ...Important Safety Information 43 F24usr bk Page 43 Thursday January 14 1999 10 41 AM...
Page 59: ...Important Safety Information 59 F24usr bk Page 59 Thursday January 14 1999 10 41 AM...
Page 60: ...60 APPENDIX A SAFETY INFORMATION F24usr bk Page 60 Thursday January 14 1999 10 41 AM...
Page 64: ...64 APPENDIX B PIN OUTS F24usr bk Page 64 Thursday January 14 1999 10 41 AM...
Page 86: ...86 GLOSSARY F24usr bk Page 86 Thursday January 14 1999 10 41 AM...