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Forum Discussion

Miak's avatar
Miak
Icon for Nimbostratus rankNimbostratus
Jan 18, 2010

An existing connection was forcibly closed by the remote host

Dear Friends,     I need your help!     I configured the VS for one service for UDP port 8502. we can access the service but we are getting lots of error messages on the server s...
management
monitoring
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 18, 2010
Hi,

 

 

Can you post an anonymized copy of the virtual server and udp profile configuration using 'b virtual VIP_NAME list' and 'b profile UDP_PROFILE list'?

 

 

For monitoring UDP services, it's ideal to use a UDP monitor in combination with an ICMP monitor:

 

 

SOL6143: UDP health monitor operation

 

https://support.f5.com/kb/en-us/solutions/public/6000/100/sol6143.html

 

 

So the UDP monitor checks for an ICMP unreachable message to determine whether the service is down. If the monitor receives no response, it assumes the member is up. So it's ideal to use the UDP monitor with an ICMP monitor to ensure the service is marked down if the node address isn't responding to an ICMP request.

 

 

Aaron