<div dir="ltr">All,<div><br></div><div>I have a tricky (at least to me) subnets question.</div><div><br></div><div>I have  2 NSD Server clusters:</div><div>Serv1 -> daemon on 10.51 with high speed network on 10.82</div><div>Serv2 -> daemon on 10.42 a high speed network</div><div><br></div><div> and 2 client clusters:</div><div>Cli1 -> daemon on 10.81 with high speed network on 10.82</div><div>Cli2 -> daemon on 10.41 with high speed network on 10.42</div><div><br></div><div> Serv1 has the following subnets operand:</div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">subnets <a href="http://10.82.0.0/Serv1;Cli1">10.82.0.0/Serv1;Cli1</a> <a href="http://10.41.0.0/Cli2">10.41.0.0/Cli2</a> </span><br></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">Cli1 has the following subnets</span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">subnets <a href="http://10.82.0.0/Serv1;Cli1">10.82.0.0/Serv1;Cli1</a></span><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">Cli2 has the following subnets</span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">subnets <a href="http://10.51.0.0/Serv1">10.51.0.0/Serv1</a> <a href="http://10.41.0.0/Cli2">10.41.0.0/Cli2</a> <a href="http://10.42.0.0/Serv2">10.42.0.0/Serv2</a></span><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">Problem:</span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">Sometimes Serv1 will try to contact Cli2 nodes on the 10.42 address which they don't have access to.  I get errors like</span></div><div>Close connection to 10.42.1
0.1 hs001.cluster.ib <span> (Connection timed out) </span><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div><div><span>Cli2 nodes can connect/re-connect to Serv1 once the server cluster kicks them out.</span></div><div><span><br></span></div><div>Serv1 has Cli2 listed on its 10.41 subnets operand, so I don't fully understand why Serv1 does not use 10.41 to connect<span><br></span></div><div><span><br></span></div><div><span>Possible Solution??</span></div><div><span>I think to fix this I either need to add Serv1 to the 10.41 subnet of Cli2  OR move the 10.42 operand on Cli2 to the front of the list.</span></div><div><br></div><div><span><br></span></div><div><span>I am working from this link</span></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"> </span><a href="https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/General+Parallel+File+System+(GPFS)/page/GPFS+Network+Communication+Overview" class="external-link" rel="nofollow" style="color:rgb(59,115,175);text-decoration:none;font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)">https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/General+Parallel+File+System+(GPFS)/page/GPFS+Network+Communication+Overview</a><span><br></span></div><div><br></div><div><br></div><div>Please let me know if you need more info.  I have tried to strip this down to the bare minimum and in doing so may have left out good details.</div><div><br></div><div>Thank you,</div><div>Brian Marshall</div><div><br></div><div><br></div><div><br></div><div><span style="color:rgb(51,51,51);font-family:arial,sans-serif;font-size:14px;background-color:rgb(245,245,245)"><br></span></div></div>