Hello, 

Please check your guest VLAN Range, looks like it’s not there, so when you 
create any isolate network or VPC style network, It configure a public NIC and 
a guest NIC and guest Nic is configured on a random VLAN  (The VLAN which you 
assign while creating the zone ).  

>From the logs you provided - 


eleased for network id 206 as a part of network implement
com.cloud.exception.InsufficientVirtualNetworkCapacityException: Unable to 
allocate vnet as a part of network Network {"id": 206, "name": "MyIsolatedNe
twork", "uuid": "298ddc5f-bb2a-498e-a15f-7011dfa2e4dc", "networkofferingid": 9} 
implement Scope=interface com.cloud.dc.DataCenter; id=1


Click on Zone, and then -> click on physical network —> then click on the 
network where you have defined - traffic type guest , and then —> traffic type 
—> select guest —> then edit the setting where you will have option to define 
VLAN Range,  

Note - These VLAN should be allowed on the physical switch port where your host 
is connected, if you have multiple hosts 

i.e 






Vivek Kumar
Sr. Manager - Cloud & DevOps
TechOps | Indiqus Technologies

vivek.ku...@indiqus.com <mailto:vivek.ku...@indiqus.com>
        www.indiqus.com <https://www.indiqus.com/>




> On 18-Jan-2023, at 1:18 AM, Leandro Ramos <leandroe...@gmail.com> wrote:
> 
> Hi :)
> 
> I'm trying to launch an instance on Cloudstack, but I got some errors. 
> There's a pastebin with a "grep -i network 
> /var/log/cloudstack/management/management-server.log" result here: 
> https://pastebin.com/KY6FWm3t <https://pastebin.com/KY6FWm3t>
> Anyone can help me?
> 
> In fact I didn't understand very well how to create an isolated network (even 
> after seeing some tutorials and videos), so I have created one with default 
> values:
> 
> <XZRiz6JpqOTFNmms.png>
> 
> 
> 
> Thank you.
> 


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