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getrajan1's avatar
getrajan1
Copper Contributor
Oct 28, 2024

App Connectivity issue

I have come across an issue being reported by one of the user stating that he is unable to connect to an application on port 5672 hosted behind azure internal load balancer. 

on my observation from Azure portal post login i see that Azure front end load balancer is marking the front end port as unresponsive/down for service 5672, while the back end port 2009 on azure internal load balancer is seen up on the back end pool virtual F5 .port mapping done properly on azure

 

Error as seen on Azure is “TCP probe out, unhealthy backend instances or unhealthy app listening on port”

 

However when I check on the Virtual F5 the backend server is responding on port 5672 normally, the health checks look ok, thereby the vip is marked as up. 

 

is this abnormal behaviour on the application side against 5672 service or something more to check on the azure side which is resulting to TCP probe out error.. pls suggest

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