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https://issues.apache.org/jira/browse/CLOUDSTACK-5884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13876348#comment-13876348
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Hugo Trippaers commented on CLOUDSTACK-5884:
--------------------------------------------

The log below is from my dev system.

Two physical networks
  first physical network has isolationmethod VLAN and Guest traffic (vSwitch0)
  second physicla network has isolationmethod STT and Guest traffic 
(integration-vSwitch)

The second tag is not used at the moment.

2014-01-20 12:12:37,829 DEBUG [c.c.h.v.r.VmwareResource] 
(DirectAgent-27:ctx-6bad7ff6 10.200.23.49) VM r-111-VM will be started with NIC 
device type: E1000
2014-01-20 12:12:37,830 INFO  [c.c.h.v.r.VmwareResource] 
(DirectAgent-27:ctx-6bad7ff6 10.200.23.49) Prepare NIC device based on NicTO: 
{"deviceId":0,"networkR
ateMbps":200,"defaultNic":false,"uuid":"9f35f8f8-3de3-4c70-a0a2-6c180341e65a","ip":"10.1.1.1","netmask":"255.255.255.0","mac":"02:00:65:6a:00:02","dns1":"8.8.
8.8","broadcastType":"Lswitch","type":"Guest","broadcastUri":"lswitch:a7c39303-240b-45ef-b205-b447203164c8","isolationUri":"lswitch:a7c39303-240b-45ef-b205-b4
47203164c8","isSecurityGroupEnabled":false,"name":"integration-vSwitch,,vmwaredvs"}
2014-01-20 12:12:37,840 INFO  [c.c.h.v.r.VmwareResource] 
(DirectAgent-27:ctx-6bad7ff6 10.200.23.49) Prepare network on vmwaresvs 
P[vSwitch0:untagged] with nam
e prefix: cloud.guest

The name in the NicTO object is the correct switch to use 
("integration-vSwitch") and the nextline indicates that the nic will be created 
on the wrong vSwitch0.

> traffic tag ignored on second physical network with guest traffic type
> ----------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-5884
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-5884
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>    Affects Versions: 4.3.0
>            Reporter: Hugo Trippaers
>            Assignee: Hugo Trippaers
>            Priority: Blocker
>             Fix For: 4.3.0
>
>
> When a vmware environment is created with two physical networks that both 
> have the guest traffic type. The switch tag set on the second physical 
> network will be ignored and the switch from the first physical network will 
> be used.
> This is a problem for some of the SDN implementations that often coexist with 
> a vlan based guest network on another physical network.



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