weizhouapache commented on issue #7838:
URL: https://github.com/apache/cloudstack/issues/7838#issuecomment-1678760242

   > @weizhouapache Yes, as you said both VRs become PRIMARY.
   > 
   > The VRs can not migrate to same host. The error message:
   > 
   > ```
   > Failed to load hosts.: Error: Request failed with status code 431
   > ```
   > 
   > 
![image](https://user-images.githubusercontent.com/4197714/260657786-7c168526-dbb5-4944-8dd5-66f9613ec623.png)
   > 
   > I migrate the vms to same host, They can ping each other.
   > 
   > Our env:
   > 
   > Two blade servers uplinked to two Cisco nexus 7700 core switches, with no 
mlag/lacp/vpc between them.
   > 
   > 
![企业微信截图_16920880631091](https://user-images.githubusercontent.com/4197714/260663929-a645729d-3957-4f04-a0c7-fdf9f513d554.png)
   > 
   > Any idears?
   
   @xuanyuanaosheng 
   sorry I cannot give you advice how to configure routers correctly to support 
MLAG/VRRP.
   It would be good to ask network specialists to check the configurations.
   


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