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https://issues.apache.org/jira/browse/CLOUDSTACK-1221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13588118#comment-13588118
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Radhika Nair edited comment on CLOUDSTACK-1221 at 2/28/13 12:38 PM:
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Added the following content to the current section on VLAN Provisioning:

You can use the same VLANs on different physical networks provided that each 
physical network has its own underlying layer-2 infrastructure, such as 
switches. For example, you can specify VLAN range 500 to 1000 while deploying 
physical networks A and B in an Advanced zone setup. This capability allows you 
to set up an additional layer-2 physical infrastructure on a different physical 
NIC and use the same set of VLANs if you run out of VLANs. Another advantage is 
that you can use the same set of IPs for different customers, each one with 
their own router and guest networks on different physical NICs

Verified by Swamy.
                
      was (Author: radhikap):
    Added the following content to the current section on VLAN Provisioning:

You can use the same VLAN numbers on different physical networks provided that 
each physical network has its own underlying layer-2 infrastructure, such as 
routers and switches. For example, you can specify VLAN range 500 to 1000 while 
deploying physical networks A and B in an Advanced zone setup. This capability 
allows you to set up an additional layer-2 physical infrastructure on a 
different physical NIC and use the same set of VLANs if you run out of VLANs. 
Another advantage is that you can use the same set of IPs for different 
customers, each one with their own router and guest networks on different 
physical NICs.
                  
> Documentation for the Feature Allowing Same vlan on Different Physical NICS
> ---------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-1221
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1221
>             Project: CloudStack
>          Issue Type: Sub-task
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>          Components: Doc
>            Reporter: Radhika Nair
>            Assignee: Radhika Nair
>             Fix For: 4.1.0
>
>


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