I am reading CCNP BSCI from Stewart in prep for test.
It lists three criterion for neighborship to form: K values must match, AS# must match, and a "hello" must be recieved. It does not talk about the hello or hold time values. Mustn't those also match?
It is possible for two routers to become EIGRP neighbors even though the hello and hold timers do not match. The hold time is included in the hello packets so each neighbor should stay alive even though the hello interval and hold timers do not match.
From this doc: