Arnaud, Can you provide more information?
What are the networks and the network configurations you are deploying the VM into? How did you setup your zone? Is this 3.x, 4.x, 2.x? --Alex > -----Original Message----- > From: Arnaud Gaillard [mailto:arnaud.gaill...@xtendsys.net] > Sent: Tuesday, October 23, 2012 2:18 AM > To: cloudstack-users@incubator.apache.org > Subject: Cloudstack mixing Vlan and creating a big mess... > > Hello, > > We are currently facing a critical issue. > > Cloudstack is currently mixing vlan for VM migration or creation bringing > down part of our network. > > We are currently using multiple guest network with different Vlan for > segmentation. > > Here is a quick exemple (extract from the cloud agent log in debug mode): > > "nics":[{"deviceId":0,"networkRateMbps":10000,"defaultNic":true,"ip":"10.1 > 28.8.3","netmask":"255.255.240.0","gateway":"10.128.15.254","mac":"06:7d:4 > 6:00:16:50","dns1":"172.16.11.10","broadcastType":"Vlan","type":"Guest","b > roadcastUri":"vlan://120","isolationUri":"vlan://811","isSecurityGroupEnable > d":false,"name":"cloudVirBrPriv1"} > {"deviceId":1,"networkRateMbps":10000,"defaultNic":false,"ip":"172.20.2.4", > "netmask":"255.255.240.0","gateway":"172.20.15.254","mac":"06:1a:a2:00:14: > 50","dns1":"172.16.11.10","broadcastType":"Vlan","type":"Guest","broadcas > tUri":"vlan://811","isolationUri":"vlan://120","isSecurityGroupEnabled":false, > "name":"cloudVirBr120"},{"deviceId":2,"networkRateMbps":10000,"defaultN > ic":false,"ip":"10.192.6.3","netmask":"255.255.248.0","gateway":"10.192.7.25 > 4","mac":"06:07:8e:00:11:52","dns1":"172.16.11.10","broadcastType":"Vlan"," > type":"Guest","broadcastUri":"vlan://400","isolationUri":"vlan://400","isSecu > rityGroupEnabled":false,"name":"cloudVirBr400"}]},"wait":0}}] > } > > > As you can see broadcastUri and isolationUri are not in the same Vlan. The > Vlan120 is only present on another physical interface (CloudVirBr120), and > must not be present on this interface. In order for this to work broadcast and > isolation must both be in the 811 vlan. The same problem arise from > deviceid1 where the mix is inverted.... > > > From where does cloudstack get the value for Broadcast and Isolation URI? > How can such a mix/mess happend? > > Thanks for your help! > > Arnaud