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<pre><span style="color:rgb(31,73,125)">> </span>Am Mittwoch, 23. Dezember 2015, 12:28:06 schrieb Ulrich Windl:</pre><pre>><i> >>> Somanath Jeeva <<a href="http://clusterlabs.org/mailman/listinfo/users">somanath.jeeva at ericsson.com</a>> schrieb am 23.12.2015 um</i></pre><pre>><i> >>> 06:01 in</i></pre><pre>><i> Nachricht <<a href="http://clusterlabs.org/mailman/listinfo/users">4F5E5141ED95FF45B3128F3C7B1B2A6721ABE07B at eusaamb109.ericsson.se</a>>:</i></pre><pre>><i> > Hi ,</i></pre><pre>><i> > </i></pre><pre>><i> > Thanks for the quick reply.</i></pre><pre>><i> > </i></pre><pre>><i> > I will check with our IT team regarding the multicast MAC at switch level.</i></pre><pre>><i> > </i></pre><pre>><i> > But the Virtual IP is reachable for 15 minutes or so after I start the</i></pre><pre>><i> > pacemaker/Corosync service. After which it becomes unreachable. However</i></pre><pre>><i> > when I restart the iptables service it becomes reachable again for</i></pre><pre>><i> > another 15 min.</i></pre><pre>><i> It could be some ARP cache problem. Maybe watch it.</i></pre><pre> </pre><pre><span style="color:rgb(31,73,125)">> </span>Please check the ARP tables of your switches / routers. IP address clones use </pre><pre><span style="color:rgb(31,73,125)">> </span>multicast MAC addresses for the unicast IP address. Some switches (esp Cisco) </pre><pre><span style="color:rgb(31,73,125)">> </span>do not like that. You would have to configure the MAC addresses manually.</pre><pre><span style="color:rgb(31,73,125)"> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Do I have to configure this MAC address manually at switch level?. The Multicast MAC was automatically added in the iptables after started the pacemaker/Corosync service.</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"># service iptables status</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Table: filter</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Chain INPUT (policy ACCEPT)</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">num target prot opt source destination </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">1 CLUSTERIP all -- <a href="http://0.0.0.0/0">0.0.0.0/0</a> 10.61.150.55 CLUSTERIP hashmode=sourceip clustermac=51:33:83:16:0A:BF total_nodes=2 local_node=1 hash_init=0</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">2 ACCEPT all -- <a href="http://0.0.0.0/0">0.0.0.0/0</a> <a href="http://0.0.0.0/0">0.0.0.0/0</a> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Chain FORWARD (policy ACCEPT)</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">num target prot opt source destination </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">Chain OUTPUT (policy ACCEPT)</span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">num target prot opt source destination </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)">1 ACCEPT all -- <a href="http://0.0.0.0/0">0.0.0.0/0</a> <a href="http://0.0.0.0/0">0.0.0.0/0</a> </span></pre><pre><span style="font-size:11pt;font-family:"Calibri","sans-serif";color:rgb(31,73,125)"> </span></pre><pre><span style="color:rgb(31,73,125)">> </span>Mit freundlichen Grüßen,</pre><pre> </pre><pre><span style="color:rgb(31,73,125)">> </span>Michael Schwartzkopff</pre><br clear="all"><br>-- <br><div class="gmail_signature"><font color="#3366ff">With Regards</font><div><font color="#3366ff">Somanath Thilak.J</font></div></div>
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