Avaya has released an updated version of their Large Campus Technical Solution Guide. The updated version includes the re-branding from Nortel to Avaya along with a few modifications around the 7.0 software release for the Ethernet Routing Switch 8600. This is a highly technical document but one that explains a lot of the best practices when building a network infrastructure with Avaya (formerly Nortel) network switches.
If you are working with Nortel/Avaya switches I highly recommend that you review this document.
Cheers!
Great guide to have around!