Join Date: Mar 2006
Location: Beautiful Pacific NW
As a "rule", Hounds can live well together as they were bred to hunt in packs (Beagles spring to mind).
My Dachshunds get along with each other, and sometimes other non-dominant Dachshunds, and Bassets, but hate larger dogs.
I have an AKC big book of dog breeds and each has a little "at a glance" description which rates coat care, stranger aggression, other dog aggression, etc. on a scale from, like, 1-5. 1 would be "little coat care", 5 would be "intensive coat care" (think Puli).
Anyway, a 1 on dog aggression would be, "gets along great with other dogs", and a 5 would be "known for other-dog aggression" (think many Terriers, GSDs, etc.)
There's also "stranger dog" aggression (outside dogs), vs. in home aggression, that is, their own pack members.
My dogs tolerate all the members of their pack, but don't like outside dogs coming in. We have to be careful with introducing the foster dogs, for instance.
So it's not real straightforward and it's not really set in stone. There's many facets to "other dog aggression" including individual temperaments and male vs. female, hormones, etc.