[CentOS] DUP! on ping reply
Barry L. Kline
blkline at attglobal.netSun Apr 9 00:07:51 UTC 2006
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Matt Arnilo S. Baluyos (Mailing Lists) wrote: > Hello List, > > I'm running a ping command to monitor our connection to the Internet. > Around yesterday, I was getting a lot of (DUP!) text on the replies. > > Would anyone know what that means? > man ping ... [snip] ... DUPLICATE AND DAMAGED PACKETS ping will report duplicate and damaged packets. Duplicate packets should never occur, and seem to be caused by inappropriate link-level retransmissions. Duplicates may occur in many situations and are rarely (if ever) a good sign, although the presence of low levels of duplicates may not always be cause for alarm. Damaged packets are obviously serious cause for alarm and often indi- cate broken hardware somewhere in the ping packet’s path (in the net- work or in the hosts).
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