
Issue 1a - 10/99
8-11
Introduction to Frame Relay
FECN
Forward Explicit Congestion Notification. This is used
for congestion indication - please refer to Congestion
Control later in this Chapter for further information.
BECN
Backward Explicit Congestion Notification. This is
used for congestion indication - please refer to
Congestion Control for further information.
DE
Discard Eligibility Indicator. This bit is used in
congestion control to prioritize frames.
EA
Extended Address. In the event that over a thousand
virtual circuit addresses on an interface are
required, the address extension bit allows for more -
about 268 million.
DL-CORE Control Indicator (D/C)
This bit is set to 0 to indicate that the octet contains
DLCI information; it is set to 1 to indicate that the
octet contains DL-CORE control information. At
present only DLCI information is held and the
indicator has only been included to allow for future
expansion.
Virtual Circuits
A virtual circuit is a logical path which traffic follows
through the network. A virtual circuit is determined by
its end points - the path between these points is left to the
network to determine. There are two types of virtual circuit
- PVCs and SVCs.
Summary of Contents for auroraTempo
Page 2: ...423972 Issue 1a 10 99 auroraTempo User Guide ...
Page 26: ...auroraTempo User Guide 1 16 423972 ...
Page 35: ...Issue 1a 10 99 3 3 Getting Started Connecting auroraTempo within the Frame Relay Network ...
Page 48: ...auroraTempo User Guide 3 16 423972 ...
Page 56: ...auroraTempo User Guide 4 8 423972 The following table provides a key to the T1 display ...
Page 80: ...auroraTempo User Guide 4 32 423972 ...
Page 110: ...auroraTempo User Guide 5 30 423972 ...
Page 178: ...auroraTempo User Guide 5 98 423972 ...
Page 197: ...Issue 1a 10 99 6 19 Configuring auroraTempo ...
Page 198: ...auroraTempo User Guide 6 20 423972 ...
Page 202: ...auroraTempo User Guide 6 24 423972 ...
Page 214: ...auroraTempo User Guide 7 12 423972 ...
Page 236: ...auroraTempo User Guide 8 22 423972 ...
Page 242: ...auroraTempo User Guide A1 6 423972 34 Way MRAC Winchester Connector Male Part number 423355 ...
Page 252: ...auroraTempo User Guide A1 16 423972 ...
Page 262: ...auroraTempo User Guide A3 2 423972 Appendix 3 Menutrees Main Menu Menutree ...
Page 265: ...Issue 1a 10 99 A3 5 Appendix 3 Menutrees Setup Config Menutree ...
Page 266: ...auroraTempo User Guide A3 6 423972 ...
Page 267: ...Issue 1a 10 99 A4 1 Appendix 4 Glossary Appendix 4 Contents Glossary A4 2 ...
Page 280: ...auroraTempo User Guide A4 14 423972 ...
Page 284: ...auroraTempo User Guide A5 4 423972 ...
Page 285: ...Issue 1a 10 99 Index 1 Index ...