You need to perform a DR, or move one or more Symantec Endpoint Protection Manager (SEPM) servers from an enrolled site to a new server and want to know how these two services are reinstalled:
Symantec Endpoint Protection Bridge Service
Symantec Endpoint Protection Bridge Uploader Service
SEPM site enrolled to a cloud tenant.
The SEPM does regular health checks every 30 minutes. If it sees that the site is enrolled and there are no bridge services, it installs the bridge services.
Additionally, if you restore from backup, then the relevant task runs 3 minutes after startup and will install them.