Frequent connectivity errors?

[Y Zhu]

When I swap in experiment recently, there are always some connectivity errors like this:

Linktest Version 1.2 
Testing Single Hop Connectivity and Latency ... 21:29:24 
  Some latency tests had errors! 
Testing Loss ... 21:29:27 
  Some loss tests had errors! 
Linktest completed at 21:29:45
Downloading logs...
Latency error: node-1-link01 [pcwf183/000000000000] to node-21-link01 [pc242] (100 Mbps, 0ms, 0% loss, \
 droptail) : No packets received (n=10)
Loss error: node-21-link01 [pc242/000423b726cc] to node-1-link01 [pcwf183] (100 Mbps, 0ms, 0% loss, \
 droptail) : No packets received from node-21

The experiment used to work before so the configuration should be correct.

Does anyone know what is the problem?

best regards,
Y Zhu

[Ben Burnett]

We were and still are I think getting similar errors, one of the things that seamed to help was making sure we had all of our experimental switches configured the same, see the thread for "random missing links in experiments" to see some more discussion on this.

good luck

--Ben

Ben Burnett <burne...@gmail.com>          

  R&D Software Engineer / Computer Scientist
  ATC (Architecture Technology Corporation,  http://www.atcorp.com/)             
  wk: (952) 829-5864 x167     

  http://ben.burnett.ws/  

                       
  

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