Some DMVPN questions:
1) A site I've worked with has about 7 hubs and 5 spokes. This looks at best a bit odd to me. The Cisco design docs all have at most 2 hub sites. Is more than 2 DMVPN hub sites a good idea / bad idea? Pros / cons / drawbacks? I've googled this topic heavily, found little.
2) If two sites are DMVPN hub sites that have NHRP map statements for each other, can they both be doing the Per-Tunnel QoS feature to get some QoS shaping towards each other?
3) What is recommended for DMVPN QoS in general? And for a spoke site where the hub site is doing the Per-Tunnel QoS? Just put some QoS on the physical link?
