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Rick_Penney

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Cisco command to check for packet loss / errors?

Hi, one of our networks is used for a bespoke application which is underperforming and we have been advised that the network has issues.
I can run a continuous ping to any device on that network with a -l 1500 and I don't drop any packets.
I would like to be able to run a command on our Cisco 2960 and 3560 switches that will show if there are lots of errors / data loss etc that I can copy and paste to a word doc.
please can you advise command to run and also what values you would consider to be unacceptable.
kind regards,
Rick
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Don Johnston
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"show interface "

Bottom 10 lines or so gives you information on bad packets, etc.
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Rick_Penney

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Many thanks for that, is there anyway I can increase the duration to get more than the 5 minute input and output that it displays?
regards
Rick
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Don Johnston
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Thank you very much, its much appreciated.