DMVPN on 7206VXR with VAM2+

Unanswered Question

We are going through these talks now with Cisco and DMVPN has limitations with EIGRP you have to look out for. Look at the SRND from Cisco on DMVPN as it requires a great deal of hardware for a small amount of spokes.

Although the comments on hardware and what it can handle is correct, we ran several design consideration by Cisco RTP and all they will commit to in single-tier design is 800 spokes per head-end device. This is not because of CPU/Throughput/Enrcyption it is purely based on limitation in and around EIGRP neighbors and convergence times.


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