Hi Richard, On Wed, 24 Feb 2010, Richard Zulu wrote:
> I did a ping of one if my APs and it gave me duplicate pings likeso. > > 64 bytes from 172.16.0.84: icmp_seq=4 ttl=64 time=1019 ms > 64 bytes from 172.16.0.84: icmp_seq=5 ttl=64 time=6.30 ms > 64 bytes from 172.16.0.84: icmp_seq=4 ttl=64 time=1034 ms (DUP!) [...] > Research has shown me that it is cause by poor link-level > retransmission. Does anyone have an idea on what causes that? This is normal in wireless networks in my experience. The RTS protocol means that sometimes a node will receive a packet, but the reply to say that it received the packet gets lost, so the sender transmits it again. If this is the cause, which you can test by disabling RTS, the only options to avoid it would be to disable RTS (which will increase your packet loss) or increase signal strength to the point where it happens rarely enough that it doesn't bother you. Cheers, Chris. -- Aptivate | http://www.aptivate.org | Phone: +44 1223 760887 The Humanitarian Centre, Fenner's, Gresham Road, Cambridge CB1 2ES Aptivate is a not-for-profit company registered in England and Wales with company number 04980791. _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. ---------------------------------------
