<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"\@SimSun";
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Menlo;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You can start to debug this issue with some neutron CLIs,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>neutron net-list<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4 </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| private | 27fd9095-2492-4901-b06c-c59c58739078 10.0.0.0/24 |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| 8b59d35f-1c7d-4378-a0b9-618a51a083eb | public | 122427d1-d1f2-4fdc-b98b-120b676df0f8 10.10.166.232/29 |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>neutron net-show </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>+---------------------------+--------------------------------------+<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| Field | Value |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>+---------------------------+--------------------------------------+<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| admin_state_up | True |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| id | </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4 </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>|<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| name | private |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| provider:network_type | </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>vlan </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>|<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| provider:physical_network | em1 |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| provider:segmentation_id | 3 |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| router:external | False |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| shared | False |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| status | </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>ACTIVE </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>|<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| subnets | 27fd9095-2492-4901-b06c-c59c58739078 |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>| tenant_id | dc8abbdd20424e43873b1db2cb41680c |<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>+---------------------------+--------------------------------------+<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If dhcp is working fine, you should see this,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tap36464bad-e1 --except-interface=lo --pid-file=/opt/stack/data/neutron/dhcp/</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>/pid --dhcp-hostsfile=/opt/stack/data/neutron/dhcp/</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>/host --addn-hosts=/opt/stack/data/neutron/dhcp/</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>/addn_hosts --dhcp-optsfile=/opt/stack/data/neutron/dhcp/</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'>60ae6206-172e-45b2-8a9b-52b7ad7d84f4</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>/opts --leasefile-ro --dhcp-range=set:tag0,10.0.0.0,static,86400s --dhcp-lease-max=256 --conf-file= --domain=openstacklocal<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So very likely you have a network problem and that network (</span><span style='font-size:10.5pt;font-family:Menlo;color:black'>55a76ce1-39e4-49fb-9951-6d31318ea86f in your case) is not fully up for some reason. </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Also, depends how you setup your neutron server, you can tail the actual neutron log file to get the detail server debug information (check your /etc/neutron/neutron.conf file).</span><span style='font-size:10.5pt;font-family:Menlo;color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Menlo;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dennis Qin (aka Xiaohong Qin)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ajay Kalambur (akalambu) [mailto:akalambu@cisco.com] <br><b>Sent:</b> Tuesday, December 09, 2014 9:04 AM<br><b>To:</b> Gangur, Hrushikesh (R & D HP Cloud); openstack@lists.openstack.org<br><b>Subject:</b> Re: [Openstack] Changing ML2 vlan range<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Hi <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>I tried restarting both neutron-service, dhcp agent and openvswitch agent<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>But now when I create a new network and launch instances DHCP agent wont start anymore<o:p></o:p></span></p></div><div><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>2014-12-09 16:51:34.472 13703 WARNING neutron.agent.dhcp_agent [req-df6e4f47-2040-4bf2-9ea7-fac027e0ff28 None] Unable to enable dhcp for 55a76ce1-39e4-49fb-9951-6d31318ea86f: there is a conflict with its current state; please check that the network and/or its subnet(s) still exist.<o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'><o:p> </o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>On a different node why is this a warning and not a critical error<o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>Ajay<o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>From: </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><Gangur>, "Hrushikesh (R & D HP Cloud)" <<a href="mailto:hrushikesh.gangur@hp.com">hrushikesh.gangur@hp.com</a>><br><b>Date: </b>Monday, December 8, 2014 at 10:48 PM<br><b>To: </b>akalambu <<a href="mailto:akalambu@cisco.com">akalambu@cisco.com</a>>, "<a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a>><br><b>Subject: </b>RE: Changing ML2 vlan range<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You just need to restart neutron-server service. </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'> Ajay Kalambur (akalambu) [<a href="mailto:akalambu@cisco.com">mailto:akalambu@cisco.com</a>] <br><b>Sent:</b> Monday, December 08, 2014 10:21 PM<br><b>To:</b> <a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><br><b>Subject:</b> [Openstack] Changing ML2 vlan range</span><span style='color:black'><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Hi</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>After installation and once the cloud is active is wants to extend the VLAN range in ml2_conf.ini</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'> </span><span style='color:black'><o:p></o:p></span></p></div><div><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>network_vlan_ranges =physnet:501:599</span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'> </span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>What are the systematic steps one needs to take. Since there are existing networks present mapped to vlans here</span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>Range would become something like</span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>network_vlan_ranges =physnet:101:2000</span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'> </span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'> </span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'> </span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'>Ajay</span><span style='color:black'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.5pt;font-family:Menlo;color:black'> </span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'> </span><span style='color:black'><o:p></o:p></span></p></div></div></div></div></body></html>