Say you are running a 6.1 indexer. Can you upgrade the forwarders to 6.2 versions without upgrading the indexer?
Yes. See Compatibility between forwarders and indexers in the Forwarding Data manual. But note where it says "As a best practice, it is recommended that indexers be at the same or higher version level than the forwarders they're receiving data from."
Yes. See Compatibility between forwarders and indexers in the Forwarding Data manual. But note where it says "As a best practice, it is recommended that indexers be at the same or higher version level than the forwarders they're receiving data from."