I have a mGRE tunnel at a datacenter on an ASR 1002-HX. There are over a dozen remotes connected with bandwidths varying up to over 100 Mbps for a remote. I implemented a couple of new remote sites via this hub tunnel but they couldn't go above 4-5 Mbps without their video streams breaking up. These remotes use ISR 1101s. Their ultimate destination is not the datacenter but another spoke (NHRP mGRE). Doesn't matter if it's direct spoke to spoke or via the hub, these specific remotes could not go above 4-5 Mbps. The egress at the remotes was indeed 8 Mbps (target bitrate) but by the time they got to a test box at the data center or destination spoke it was only 4-5 Mbps. If you drop the bitrate down to 4 Mbps, the stream works fine.
Now here's the kicker. I built a DMVPN directly between remotes and it works fine over that. So there is something at the data center ASR that is capping the mGRE tunnels for these specific remotes only. Very strange. Anyone seen this before or have some insight? Reading around it doesn't seem like I've hit some sort of licensing or capabilities issues on the ASR. There is no egress QoS on the sending remotes interface. I'm stumped.
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