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Problem(Abstract) |
Because resources are a limiting factor in a programming
environment, the proper use of return addresses provide a sufficient
amount of available resources. |
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Cause |
Each unique return address uses an IP address from the
addresses available on the subnet. Each return address has a limited
number of ports that can be used to create sockets. |
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Resolving the
problem |
When you use Net Address Translation (NAT) or kernel
content based routing (kcbr) forwarding methods, you must define a return
address for communication between Load Balancer and the back-end servers.
The number of connections that Load Balancer can keep active with the
back-end server is limited by the number of return addresses that are
defined. Load Balancer uses ports that are based upon the return address
only; not the return address and server combination. When all the
available ports are in use, additional connections fail.
In a busy environment, use multiple return addresses to prevent a shortage
of available ports. |
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