Are they a Charter customer? If they are, have them call Charter.
Their business tech support has always been excellent for us. They
should be able to pinpoint this pretty easy as they can usually go
into the clients router and send a signal from there to anywhere else
on their network.
On Wed, Feb 2, 2011 at 10:43 AM, Orin Wells HIDDEN@email@example.com> wrote:
> One of our clients reported that from one of their facilities outgoing email
> was timing out on a regular basis. I had him do a tracert to the server.
> All was well as you can see from the results below.
> BUT when I did a tracert from my workstation back to any of the
> mdfd.or.charter.com nodes (Medford, Oregon on Charter.com) I was told the
> nodes were unreachable. I then tried this from the server with the same
> results. I have never seen this before so I don't know if this is our
> problem or if this is "normal" behavior for the charter backbone which may
> allow tracert/ping traffic in only one direction. Anyone have any thoughts
> on this?
> I tried a tracert on the ip address from the email I got from the client
> which may be a different physical facility I think but in the process of
> verifying. This worked to a point. First the response time jumped to 130ms
> once it hit Charter.com and then two hops later simply "timed out". When I
> did the same from the server all went well as it went from Seattle, to
> Denver, to Chicago to Washington DC where it started timing out as it hit
> Charter.com nodes but did respond from three Virginia nodes. All on the way
> from Seattle to Portland Oregon - less than 200 miles as the crow flies.
> Sometimes you have to wonder about the efficiency of the network traffic
> Any ideas? Can this be the problem? That is Charter.com backbone or is
> that how they always behave? If so how in the world can one diagnose a
> problem like this?
> 1 * * * Request timed out.
> 2 8 ms 7 ms 8 ms acr01thdlor-gbe-1-30.mdfd.or.charter.com
> 3 13 ms 15 ms 13 ms acr01klflor-vln-20.klfl.or.charter.com
> 4 15 ms 14 ms 15 ms dtr02mdfdor-vln-19.mdfd.or.charter.com
> 5 21 ms 18 ms 19 ms crr01mdfdor-tge-0-1-0-2.mdfd.or.charter.com
> 6 23 ms 23 ms 24 ms tuk-edge-09.inet.qwest.net [22.214.171.124]
> 7 43 ms 42 ms 43 ms 126.96.36.199
> 8 43 ms 42 ms 44 ms ae-7.r20.snjsca04.us.bb.gin.ntt.net
> 9 60 ms 60 ms 62 ms ae-4.r20.sttlwa01.us.bb.gin.ntt.net
> 10 65 ms 61 ms 61 ms po-2.r00.sttlwa01.us.bb.gin.ntt.net
> 11 60 ms 64 ms 64 ms xe-7-3.r00.sttlwa01..us.ce.gin.ntt.net
> 12 63 ms 61 ms 62 ms tge-4-3.cr0-c300.sea.accretive-networks.net
> 13 62 ms 62 ms 61 ms mid-columbiahousingauthority.org
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