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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=JA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>GRE and VXLAN packet use 24bit id range. Max number of ID is 1,677,000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>and per host max number of subnet is 4094 that is inner VLAN limitation.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Hiroki Aramaki<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0mm 0mm 0mm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Robert Kukura [mailto:kukura@noironetworks.com] <br><b>Sent:</b> Tuesday, April 01, 2014 11:17 AM<br><b>To:</b> openstack@lists.openstack.org<br><b>Subject:</b> Re: [Openstack] Limit of tunnel_id_ranges in Neutron<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US>On 3/31/14, 1:31 PM, Changbin Liu wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span lang=EN-US>I notice that there are flow_mod flows on OVS which handle 1-to-1 translations between VLAN IDs and GRE/VXLAN tunnel IDs. Does it mean the range of tunnel_ids is limited by VLAN tags?<o:p></o:p></span></p></div></blockquote><p class=MsoNormal><span lang=EN-US>These local VLAN IDs on br-int are assigned separately on each compute or network node by neutron's openvswitch-agent, so you should be able to use any number of networks simultaneously in your deployment as long as no more than 4094 networks are active at once on any one node.<br><br>-Bob<br><br><o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US><br clear=all><o:p></o:p></span></p><div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Thanks<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Changbin<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US>On Sun, Mar 30, 2014 at 5:31 PM, Kyle Mestery <<a href="mailto:mestery@noironetworks.com" target="_blank">mestery@noironetworks.com</a>> wrote:<o:p></o:p></span></p><div><div><div><div><div><p class=MsoNormal><span lang=EN-US>On Fri, Mar 28, 2014 at 11:39 PM, Changbin Liu <<a href="mailto:changbin.liu@gmail.com" target="_blank">changbin.liu@gmail.com</a>> wrote:<o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US>Hi All, <o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Maybe this is a simple question: is there any limit on "tunnel_id_ranges" in Neutron configuration? Say, can I configured it to e.g., "1:10000" if I have 10000 tenants in the cloud. I know VLAN is limited to 4094 tags.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>I googled around this issue but found that most commonly it is configured to default "1:1000".<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div></div></div><div><p class=MsoNormal><span lang=EN-US>There should not be a limit here, although the code will verify the tunnel ID falls within an allowed range for your tunnel protocol (currently GRE or VXLAN).<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Kyle<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0mm 0mm 0mm 6.0pt;margin-left:4.8pt;margin-right:0mm'><div><div><div><div><p class=MsoNormal><span lang=EN-US>Thanks<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US style='color:#888888'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US style='color:#888888'>Changbin<o:p></o:p></span></p></div></div></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US><br>_______________________________________________<br>Mailing list: <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><br>Post to : <a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a><br>Unsubscribe : <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><o:p></o:p></span></p></div></blockquote></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><p class=MsoNormal><span lang=EN-US><br><br><br><o:p></o:p></span></p><pre><span lang=EN-US>_______________________________________________<o:p></o:p></span></pre><pre><span lang=EN-US>Mailing list: <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><o:p></o:p></span></pre><pre><span lang=EN-US>Post to : <a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><o:p></o:p></span></pre><pre><span lang=EN-US>Unsubscribe : <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><o:p></o:p></span></pre><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>