I have set up Cache Server 1 in City A, where I added the subnets of this location in the "content cache for" section. For my local network, I used the "custom public IPs" option and added a TXT record to the local DNS. This configuration is working as expected.
Now, I am setting up Cache Server 2 in City B. The configuration is the same as in City A, ensuring that the subnets in City B fetch cached content from Server 2. I have also configured them as peers, with no parent settings in place, and both City DNS servers are synchronized with each other.
Q1: How is data served to clients in City B if Cache Server 1 already has the same files?
Q2: What changes should be made so that, in the event one server goes down, devices at both locations can still retrieve data from the other server? Additionally, while both servers are available, how can we ensure that devices access their respective server to minimize latency?
Q3: How do peers work in this setup? If Server 1 has a file, does it share it with Server 2 immediately, or does it only provide the file when a client of Server 2 requests it?
