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Merge pull request #124323 from vikedesai/patch-3
Update load-balancer-outbound-connections.md
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articles/load-balancer/load-balancer-outbound-connections.md

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@@ -150,7 +150,7 @@ For more information about connection pooling with Azure App Service, see [Troub
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New outbound connections to a destination IP fail when port exhaustion occurs. Connections succeed when a port becomes available. This exhaustion occurs when the 64,000 ports from an IP address are spread thin across many backend instances. For guidance on mitigation of SNAT port exhaustion, see the [troubleshooting guide](./troubleshoot-outbound-connection.md).
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### Port reuse
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## Port reuse
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For TCP connections, the load balancer uses a single SNAT port for every destination IP and port. For connections to the same destination IP, a single SNAT port can be reused as long as the destination port differs. Reuse isn't possible when there already exists a connection to the same destination IP and port.
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For UDP connections, the load balancer uses a **port-restricted cone NAT** algorithm, which consumes one SNAT port per destination IP, regardless of the destination port.

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