bobkil@ibmpcug.co.uk (Bob Kilgore) (03/12/91)
Keith; A 'late' collision is, generally, caused by a Node failing to detect the fact that activity is taking place on the media. Since most nodes transmit only rarely, it would cause a net. fault that is dependent on its workload, and random in time. The only cure is to find the Node and replace the offending device. It could be the transceiver, but more likely the controller card. A late collision should not cause any harm to the network, and locating it is difficult and time consuming. You will have to decide if the incident rate is to high. Your level of late collisions indicate to me that the offending device is a user node, not a server. As to your queue overflow problem, I seem to remember that the default setting in the VAX was to low for a mixed protocol network. For instance if you used DEC-net only, then the queue buffer assignment was good, however if you mixed in some TCP/IP and IPX then the VAX queues began to overflow and need to be increased. I seem to remember a posting to that effect. Hope this helps a bit; Best Regards; BOB bobkil@ibmpcug.co.uk -- Automatic Disclaimer: The views expressed above are those of the author alone and may not represent the views of the IBM PC User Group. --