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https://issues.apache.org/jira/browse/CLOUDSTACK-6183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14120983#comment-14120983
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Jayapal Reddy commented on CLOUDSTACK-6183:
-------------------------------------------
Problem:
-----------
All the ips from the public subnet are removed then also nic corresponding to
public subnet in VR is not removed.
Due to this nics are not reusable in VR. There is limitation (Max nics) for VM
from the hypervisor.
Root Cause Analysis:
--------------------------
When all the ips are removed there is no nic unplug command is called.
Proposed solution:
-----------------------
If last ip address is removed from a specific public subnet then nic unplug is
called to remove the nic from VR.
Verification steps:
----------------------
1. Add one public subnet
2. Aquire ips from the two subnets and configure the rules so that the nics get
plugged in VR.
3. Release all the ips from the subnet
Expected:
4. After all ips release the nic on the VR specific to this subnet get removed.
The nic should unplugged and it should be reused for other subnets if we add.
> Unplug the nic when all the ips of public subnet is released
> ------------------------------------------------------------
>
> Key: CLOUDSTACK-6183
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6183
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Network Controller
> Affects Versions: 4.3.0
> Reporter: Jayapal Reddy
> Assignee: Jayapal Reddy
> Priority: Critical
> Fix For: 4.3.0, 4.4.0
>
>
> 1. Add one public subnet
> 2. Aquire ips from the two subnets and configure the rules so that the nics
> get plugged in VR.
> 3. Release all the ips from the subnet
> Expected:
> 4. After all ips release the nic on the VR specific to this subnet get
> removed.
> Bug: The nic is not unplugged and it can't be reused for other subnets if we
> add.
>
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