[Standards-JIG] Disco, Cache, TTL

[Alexander Gnauck]

Hello,

I think we should have some extension and best practice for disco 
caching. We could avoid lots of unnecessary traffic.

What about a TTL like in DNS according to JEP-0128.
If you disco a chatserver for chatrooms TTL makes of course no sense 
because new rooms could be created all the time and we need real time 
results here. But normally a server configuration doesn't change that 
often, so it would be no problem to cache this result for a week also 
over multiple sessions.

Alex