Re: [WISPA] Double Ping Replies

[Marlon K. Schafer (509) 982-2181]

I've seen that with the really old 2 meg Teletronics ap's.  It was a timing issue on a really long link.  And was unique to a firm ware version or two.   What would happen was that the radio would send out the ping, not get a reply soon enough and send out a second one.  Then it would get both back.   I've also heard of multipath causing something like that, only one goes out but two come back.   Both of these scenarios can (and did) cause really strange performance issues.   laters, Marlon (509) 982-2181                                   Equipment sales (408) 907-6910 (Vonage)                    Consulting services 42846865 (icq)                                    And I run my own wisp! 64.146.146.12 (net meeting) www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam     ----- Original Message ----- From: Scott Reed To: wireless@wispa.org Sent: Monday, June 05, 2006 2:43 PM Subject: [WISPA] Double Ping Replies I had a customer call to say there connection had not been working well today.  I started to see what is going on by ping the radio.  I get 2 replies for almost every ping.  Average was about 1 at 45ms and one at 56ms.  The times are longer than normal, but my question is, how do I get 2 reponses to a ping?  No duplicate addresses, I checked. The other way I know there were 2 pings is one of the MTs that is between me and the customer showed 2 times the download as upload speed in torch, and I was the only one talking to that radio. Suggestions on what I need to look for? Scott Reed Owner NewWays Wireless Networking Network Design, Installation and Administration www.nwwnet.net -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/

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