你好，
如果远端客户端不超过500台， 不建议使用辅助站点，用一个远程分发点就可以了。
Primary Site
A stand-alone primary site always supports up to 100,000 clients
Each primary site management point can support up to 25,000 computer clients. To support 100,000 clients you must have at least four management points. Each primary site can support up to 10 management points
Each primary site can support up to 250 secondary sites
Primary Site Server (local or remote SQL)
Microsoft support both scenarios and do not care where SQL is installed. However most ConfigMgr consultants will tell you to install SQL locally. You have more control and your solution will be less problematic.
Also the ConfigMgr Primary Site Server computer account must be local administrator and Sysadmin for the SQL instance. This is a hard sell for most DBAs in a shared SQL environment.
Secondary Site
The number of secondary sites per primary site is based on continuously connected and reliable wide area network (WAN) connections. For locations that have fewer than 500 clients, consider a distribution point instead of a secondary site
Each secondary site supports a single management point that must be installed on the secondary site server.
Maximum number of clients in 5,000
Distribution Point
Individually, each primary site supports up to 250 distribution points and each distribution point can support up to 4,000 clients.
Individually, each secondary site supports up to 250 distribution points and each distribution point can support up to the same number of clients as supported by the hardware configuration of the secondary site server, up to no more than 4,000 clients.
Each primary site supports a combined total of up to 5,000 distribution points. This total includes all the distribution points at the primary site and all distribution points that belong to the primary site’s child secondary sites.
Each distribution point supports a combined total of up to 10,000 packages and applications.
如果想做带宽限制，可以配置分发点的速度限制.
HOW TO LIMIT SCCM 2012 PULL DISTRIBUTION POINT BANDWIDTH
https://www.systemcenterdudes.com/sccm-2012-pull-distribution-point-bandwidth/
更多：
Data transfers between sites in System Center Configuration Manager
https://docs.microsoft.com/en-us/sccm/core/servers/manage/data-transfers-between-sites
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