I've recently moved a network segment behind a router that seems to be getting hit pretty hard for buffer resources, and there is now an intermittent connectivity issue that's coincided with this move. The connection doesn't go down for long, I've sent 10s of thousands of pings and only drop a dozen or so, but have noticed 3 or more consecutive drops. I'm worried there are too many interfaces in the router and that packets are getting dropped and applications like sql are sensitive enough to these drops that it is visible to end users. My sh buffers output is attached:
It's my understanding that the buffers requirements will pass to the next pool if none are available in the present pool and only when it gets to the last pool, Huge buffers, and there is a failure is the packet actually dropped. Is that the case? If so, the output from this particular time would indicate that there have been no packets drop since Huge buffers show 0 failures, even those all the other buffer pools show failures.