[nmglug] ping -p ff , bad checksums, isp 5GHz wireless, lost packets?

a a at kaluta.us
Sat Jan 8 10:45:49 PST 2011


I will need to take this advice in small nibbles, mtr is new to me.
I need to take a timeout and recharge my brain,to be continued.
thanks
a


local DNS server statistics:
 
a at desktop:~$ traceroute 209.188.112.3
traceroute to 209.188.112.3 (209.188.112.3), 30 hops max, 60 byte
packets
 1  192.168.1.1 (192.168.1.1)  1.163 ms  1.490 ms  1.919 ms
 2  bcr002.newmex.com (209.188.113.9)  26.613 ms  31.521 ms  34.200 ms
 3  ns1.newmex.com (209.188.112.3)  34.645 ms  39.774 ms  40.297 ms


@desktop:~$ mtr -c 180 209.188.112.3
a at desktop:~$ mtr -r -c 180 209.188.112.3
HOST: desktop                     Loss%   Snt   Last   Avg  Best  Wrst
StDev
  1. 192.168.1.1                   0.0%   180    0.9   0.8   0.8   1.0
0.0
  2. bcr002.newmex.com             0.0%   180   13.6  27.7  11.9 232.2
22.0
  3. ns1.newmex.com                0.0%   180   16.9  27.4  14.1 147.5
16.2


On Sat, 2011-01-08 at 08:42 -0700, Nick Frost wrote:
> On Jan 8, 2011, at 2:30 AM, a wrote:
> 
> > \Bad checksum,lost packets?
> 
> I might be reading the results incorrectly, but I think the ping  
> results you have posted indicate 0% packet loss (11 packets  
> transmitted, 11 received in both cases).  What is the result of a  
> traceroute to the ubuntu server from which the downloads are being  
> performed?  Or, what are the results of running MTR against the host  
> for a minute or two?  For example,
> 
> vigilant  
> (0.0.0.0 
> )                                                                               Sat 
>   Jan  8 08:39:59 2011
> Keys:  Help   Display mode   Restart statistics   Order of fields   quit
>                                                                                   Packets 
>                 Pings
>    
> Host 
>                                                                            Loss 
> %   Snt   Last   Avg  Best  Wrst StDev
>   1.  
> 192 
> .x 
> .x 
> .x				                                                                 
> 0.0%     75   0.5   0.5   0.6   0.6   0.0
>   2. 174.x.x.x                            
> 			                                      0.0%     7    7.4  10.1    
> 7.4  22.5   5.5
>   3. ge-1-14- 
> ur01.sandia.nm.albuq.comcast.net                                     
> 0.0%     7    8.0   7.7   6.9   8.5   0.6
>   4. te-7-2- 
> ar01.albuquerque.nm.albuq.comcast.net                                 
> 0.0%     7   10.4   9.4   8.6  10.4   0.7
>   5. te-0-6-0-5- 
> cr01.denverqwest.co.ibone.comcast.net                             
> 0.0%     6   19.3  19.5  18.5  20.4   0.7
>   6. pos-2-6-0-0- 
> cr01.denver.co.ibone.comcast.net                                 
> 0.0%     69  19.7  19.6  18.9  20.8   0.7
>   7. pos-2-11-0-0- 
> cr01.dallas.tx.ibone.comcast.net                                
> 0.0%     6   65.1  64.8  63.7  65.7   0.7
>   8. pos-0-4-0-0- 
> pe01.1950stemmons.tx.ibone.comcast.net                           
> 0.0%     62  65.0  64.8  64.1  65.8   0.7
>   9. sl-st31- 
> dal-0-5-2-0.sprintlink.net                                           
> 0.0%     67  65.5  65.4  64.8  66.0   0.4
> 10. sl-crs1- 
> fw-0-6-5-0.sprintlink.net                                            
> 0.0%     63  67.7  67.6  66.9  68.8   0.7
> 11. sl-crs1- 
> dc-0-12-3-0.sprintlink.net                                           
> 0.0%     6  104.4 108.8 103.6 118.3   7.0
> 12. sl-crs1- 
> rly-0-1-5-0.sprintlink.net                                           
> 0.0%     68 105.4 105.3 104.9 106.0   0.6
> 13. sl-crs1- 
> pen-0-4-2-0.sprintlink.net                                           
> 0.0%     6  107.6 107.7 106.2 110.5   1.5
> 14. sl-bb20- 
> tuk-1-0-0.sprintlink.net                                             
> 0.0%     6   80.0  80.4  79.6  81.4   0.8
> 15. sl-bb20- 
> lon-0-0-0.sprintlink.net                                             
> 0.0%     6  149.1 148.7 148.9 149.9   0.4
> 16. sl-gw11- 
> lon-14-0-0.sprintlink.net                                            
> 0.0%     68 148.9 149.1 148.8 149.7   0.3
> 17.  
> 89.191.197.146 
>                                                                 
> 0.0%     6  172.8 193.7 150.6 349.3  77.7
> 18. canonical- 
> gw.gwr.datahop.net                                                 
> 0.0%     6  151.8 151.2 149.8 152.2   0.9
> 19.  
> cassava 
> .canonical.com                                                        
> 0.0%     6  152.2 151.6 149.9 153.8   1.3
> 
> 
> >
> > Specifics;
> > ISP supplied internet connect this area 5GHz wireless.
> > Repeated, distro download, bad checksums,
> > Ubuntu update manager Kernel errors notice....
> >
> > Trying ping,am I in the ballpark with this approach,any comments are
> > appreciated.
> >
> >
> > a at desktop:~$ ping -q -p ff 192.168.1.1
> > PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> > ^C
> > --- 192.168.1.1 ping statistics ---
> > 11 packets transmitted, 11 received, 0% packet loss, time 10001ms
> > rtt min/avg/max/mdev = 0.836/0.932/1.652/0.229 ms
> >
> >
> > DNS Server:
> > a at desktop:~$ ping -q -p ff 209.188.112.3
> > PING 209.188.112.3 (209.188.112.3) 56(84) bytes of data.
> > ^C
> > --- 209.188.112.3 ping statistics ---
> > 11 packets transmitted, 11 received, 0% packet loss, time 10017ms
> > rtt min/avg/max/mdev = 14.813/16.869/21.539/1.999 ms
> >
> >
> >
> > May you receive a thousand camels as your reward.
> >
> > a
> >
> >
> > _______________________________________________
> > nmglug mailing list
> > nmglug at lists.nmglug.org
> > http://lists.nmglug.org/listinfo.cgi/nmglug-nmglug.org
> 
> ---------------------------------------
> Nicholas S. Frost
> 7 Avenida Vista Grande #325
> Santa Fe, NM  87508
> nickf at frostitute.com
> ----------------------------------------
> 
> _______________________________________________
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> nmglug at lists.nmglug.org
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