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decnet-plus_-_what_does_csmacd_mean

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decnet-plus_-_what_does_csmacd_mean [2019/02/07 20:16]
mmacgregor created
decnet-plus_-_what_does_csmacd_mean [2019/02/07 20:18] (current)
mmacgregor
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 What is CSMACD? ​ If you've been working with DECnet-Plus (aka DECnet Phase V or DECnet/OSI on older versions of OpenVMS), you've seen the letters CSMACD in a number of places. ​ Such as: What is CSMACD? ​ If you've been working with DECnet-Plus (aka DECnet Phase V or DECnet/OSI on older versions of OpenVMS), you've seen the letters CSMACD in a number of places. ​ Such as:
  
-<​code>​NCL>​show csma-cd port *+<​code>​NCL>​ show csma-cd port *
  
 Node 0 CSMA-CD Port CSMACD$EWA_0001 Node 0 CSMA-CD Port CSMACD$EWA_0001
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 Carrier Sense (CS) - listen to make sure the network is quiet before beginning to send a message. Carrier Sense (CS) - listen to make sure the network is quiet before beginning to send a message.
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 Multiple Access (MA) - Ethernet is a shared access medium which may be used by many hosts. Multiple Access (MA) - Ethernet is a shared access medium which may be used by many hosts.
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 Collision Detect (CD) - In the event that multiple hosts begin talking at the same time, each host must detect this collision and stop transmitting. They can retry their communication after a random period of waiting. Collision Detect (CD) - In the event that multiple hosts begin talking at the same time, each host must detect this collision and stop transmitting. They can retry their communication after a random period of waiting.
decnet-plus_-_what_does_csmacd_mean.txt ยท Last modified: 2019/02/07 20:18 by mmacgregor