Microsoft System Center Configuration Manager High availability and performance tuning

Network flow

In a moment, you will see how the different roles and clients communicate with each other. This information will be useful when setting up or planning firewall rules between servers and clients, and roles that can be load balanced.

Network communication flow is described in the following table:

Description	Protocol	Client/Server	Ports
Client DHCP to PXE point	UDP	Distribution point with PXE	67, 68 69 (TFTP)
Client to Distribution point	TCP	Distribution point	80 or 443
Client to Fallback Status point	TCP	Fallback Status point	80
Client to Management point	TCP	Management point	80 or 443, 10123(Client Notification)
Client to Software Update Point	TCP	Software Update point	80 & 8530 or 443 & 8531
Client to Cloud ...