Debugging Ethernet Port Duplex and Speed Settings - Revision history

Henry.joshua at 08:35, 5 August 2012

2012-08-05T08:35:15Z

Henry.joshua at 00:42, 24 July 2012

2012-07-24T00:42:58Z

Schoen.kevin at 16:55, 12 October 2011

2011-10-12T16:55:30Z

Schoen.kevin at 16:47, 12 October 2011

2011-10-12T16:47:17Z

Schoen.kevin: /* What affect having "Half Duplex" will have */

2011-10-12T16:46:41Z

‎What affect having "Half Duplex" will have

Schoen.kevin: /* What affect having "Half Duplex" will have */

2011-10-12T16:45:39Z

‎What affect having "Half Duplex" will have

Schoen.kevin: /* What affect having "Half Duplex" will have */

2011-10-12T16:45:22Z

‎What affect having "Half Duplex" will have

Schoen.kevin: /* What affect having "Half Duplex" will have */

2011-10-12T16:43:30Z

‎What affect having "Half Duplex" will have

Schoen.kevin at 16:43, 12 October 2011

2011-10-12T16:43:09Z

Schoen.kevin: /* What affect having "Half Duplex" will have */

2011-10-12T16:41:53Z

‎What affect having "Half Duplex" will have

@@ Line 7: / Line 7: @@
 *'''Full Duplex''', means that the ethernet connection is properly configured to allow '''simultaneous''' two way traffic on your ethernet line. This is bidirectional, or two-way communication.
 **In order to get the best speeds you '''must''' have your equipment configured for full duplex.
-*'''Half Duplex''', means that the ethernet connection is configured to send or receive traffic, but not at the same time. This is simplex, or one-way communication.
+*'''Half Duplex''', means that the ethernet connection is configured to send or receive traffic, but not at the same time. This is different from simplex, or one-way communication.
 **Half Duplex, will result in impaired and slower performance.

@@ Line 5: / Line 5: @@
 Duplex refers to the way an ethernet port is configured. to send and recieve data
-*'''Full Duplex''', means that the ethernet connection is properly configured to allow '''simultanous''' two way traffic on your ethernet line.
+*'''Full Duplex''', means that the ethernet connection is properly configured to allow '''simultaneous''' two way traffic on your ethernet line. This is bidirectional, or two-way communication.
 **In order to get the best speeds you '''must''' have your equipment configured for full duplex.
-*'''Half Duplex''', means that the etnernet connection is configured to send or recieve traffic, but not at the same time.
+*'''Half Duplex''', means that the ethernet connection is configured to send or receive traffic, but not at the same time. This is simplex, or one-way communication.
 **Half Duplex, will result in impaired and slower performance.
-==What affect having "Half Duplex" will have==
+==Effects of setting "Half Duplex" communication==
-* You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularily on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded, and most high speed Ethernet Service, including [http://www.acd.net/adsl2.cfm ADSL2+] and [http://www.acd.net/efm.cfm Ethernet First Mile]
+* You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularly on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded, and most high speed Ethernet Service, including [http://www.acd.net/adsl2.cfm ADSL2+] and [http://www.acd.net/efm.cfm Ethernet First Mile]
 * [Speed Tests http://www.acd.net/speedtest.cfm] will result in lower speeds.
-* If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.
+* If you are running Voice Over Internet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.
 ==How to configure your connection for full duplex==
@@ Line 19: / Line 19: @@
 There are a lot of incompatibilities related to devices properly negotiating speed and duplex. Usually it is best to manually set the speed and duplex on both ends of the connection, but not always.
-If you have a Cisco Router at the Cisco IOS Command Line below is an example of how you would type the commands on the ethernet interface for the speed and duplex.
+If you have a Cisco Router, the Cisco IOS Command Line below is an example of how you would type the commands on the ethernet interface for the speed and duplex.
 <pre>

← Older revision		Revision as of 16:55, 12 October 2011
Line 14:		Line 14:
	* [Speed Tests http://www.acd.net/speedtest.cfm] will result in lower speeds.		* [Speed Tests http://www.acd.net/speedtest.cfm] will result in lower speeds.
	* If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.		* If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.
		+
		+	==How to configure your connection for full duplex==
		+
		+	There are a lot of incompatibilities related to devices properly negotiating speed and duplex. Usually it is best to manually set the speed and duplex on both ends of the connection, but not always.
		+
		+	If you have a Cisco Router at the Cisco IOS Command Line below is an example of how you would type the commands on the ethernet interface for the speed and duplex.
		+
		+	<pre>
		+	config t
		+	interface fastethernet0/0
		+	speed 100
		+	duplex full
		+	^z
		+	exit
		+	wr mem
		+	</pre>

@@ Line 12: / Line 12: @@
 ==What affect having "Half Duplex" will have==
 * You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularily on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded, and most high speed Ethernet Service, including [http://www.acd.net/adsl2.cfm ADSL2+] and [http://www.acd.net/efm.cfm Ethernet First Mile]
 * If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.

@@ Line 11: / Line 11: @@
 ==What affect having "Half Duplex" will have==
-* You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularily on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded, and most high speed Ethernet Service, including DSL and [http://www.acd.net/efm.cfm Ethernet First Mile]
+* You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularily on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded, and most high speed Ethernet Service, including [http://www.acd.net/adsl2.cfm ADSL2+] and [http://www.acd.net/efm.cfm Ethernet First Mile]
 * If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [http://www.acd.net/pbx.cfm Hosted PBX], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.

@@ Line 12: / Line 12: @@
 ==What affect having "Half Duplex" will have==
 * You are almost guaranteed to have slower speeds. Typically a Half-Duplex setup will decrease speeds by at least 20%, perhaps higher, particularily on faster connections. On [http://www.acd.net/fiber.cfm Fiber Speed] Connections your performance will definitely be degraded.
-* If you are running Voice Over Interet Protocol or [http://www.acd.net/sip.cfm SIP Trunks], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.
+* If you are running Voice Over Interet Protocol, [http://www.acd.net/sip.cfm SIP Trunks] or [Hosted PBX http://www.acd.net/pbx.cfm], you almost always will have degraded voice. Problems with Voice will occur more often when there is high traffic load.