4-18
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HAPTER
4: W
ORKING
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ITH
THE
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EB
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NTERFACE
Fiber ports are not auto-negotiating. If the port is a fiber Expansion
Module port, auto-negotiation is set to disabled and you cannot
change it.
With auto-negotiation enabled, the Speed/Duplex and Full Duplex Flow
Control Fields display Auto and cannot be set manually.
ATTENTION:
The Duplex Mode of a link is not detected if the port on
the other end of the link is not auto-negotiating. In this case, the
Model F12/F24 port is set to operate in half duplex:
■
If you want the link to operate in full duplex, set the Switch port to
operate in full duplex using the Speed/Duplex drop-down listbox.
■
If you want the link to operate in half duplex, set the port on the
other end of the link to half duplex.
Speed/Duplex
100 Mbps FD / 100 Mbps HD / 10 Mbps FD /
10 Mbps HD / Auto
If auto-negotiation is disabled, or if the device at the other end of the
link does not support auto-negotiation, this field allows you to specify
the speed and Duplex Mode of the port (
HD
indicates half duplex,
FD
indicates full duplex). If auto-negotiation is enabled, the field displays
Auto
and you cannot change the speed and Duplex Mode of the port
manually.
Expansion Module ports have a fixed speed. If the port is an Expansion
Module port, you can only specify the Duplex Mode of the port.
Full Duplex Flow Control
Enabled / Disabled / Auto
If auto-negotiation is disabled, this field allows you to enable or disable
the IEEE 802.3x flow control that can be used when the port is
operating in full duplex. If auto-negotiation is enabled, the field displays
Auto
, and you cannot change the flow control setting for the port
manually. Flow control prevents any packet loss that may occur on
congested ports.
For IEEE 802.3x flow control to operate correctly, it must be enabled at
both ends of the link.
F24user.bk Page 18 Wednesday, July 15, 1998 4:27 PM
Summary of Contents for 8271 Nways Ethernet LAN Switch
Page 10: ...viii F24user bk Page viii Wednesday July 15 1998 4 27 PM...
Page 14: ...4 SAFETY NOTICES F24user bk Page 4 Wednesday July 15 1998 4 27 PM...
Page 15: ...Safety Notices 5 F24user bk Page 5 Wednesday July 15 1998 4 27 PM...
Page 16: ...6 SAFETY NOTICES F24user bk Page 6 Wednesday July 15 1998 4 27 PM...
Page 20: ...10 ABOUT THIS GUIDE F24user bk Page 10 Wednesday July 15 1998 4 27 PM...
Page 22: ...F24user bk Page 2 Wednesday July 15 1998 4 27 PM...
Page 38: ...1 16 CHAPTER 1 INTRODUCING THE SWITCH F24user bk Page 16 Wednesday July 15 1998 4 27 PM...
Page 58: ...3 10 CHAPTER 3 SETTING UP FOR MANAGEMENT F24user bk Page 10 Wednesday July 15 1998 4 27 PM...
Page 60: ...F24user bk Page 2 Wednesday July 15 1998 4 27 PM...
Page 122: ...F24user bk Page 2 Wednesday July 15 1998 4 27 PM...
Page 139: ...IV PROBLEM SOLVING Chapter 8 Problem Solving F24user bk Page 9 Wednesday July 15 1998 4 27 PM...
Page 140: ...F24user bk Page 10 Wednesday July 15 1998 4 27 PM...
Page 150: ...8 10 CHAPTER 8 PROBLEM SOLVING F24user bk Page 10 Wednesday July 15 1998 4 27 PM...
Page 152: ...F24user bk Page 2 Wednesday July 15 1998 4 27 PM...
Page 157: ...Important Safety Information A 5 F24user bk Page 5 Wednesday July 15 1998 4 27 PM...
Page 173: ...Important Safety Information A 21 F24user bk Page 21 Wednesday July 15 1998 4 27 PM...
Page 174: ...A 22 APPENDIX A SAFETY INFORMATION F24user bk Page 22 Wednesday July 15 1998 4 27 PM...
Page 184: ...D 4 APPENDIX D PIN OUTS F24user bk Page 4 Wednesday July 15 1998 4 27 PM...
Page 188: ...F 2 APPENDIX F TECHNICAL SUPPORT AND SERVICE F24user bk Page 2 Wednesday July 15 1998 4 27 PM...
Page 210: ...6 INDEX F24user bk Page 6 Wednesday July 15 1998 4 27 PM...