I’m doing some pre-configuration testing of multi-link, wireless backhaul setups, and I’ve been comparing nv2 and Nstreme, for latency and observed latency variance (eyeball jitter), and I have some curious observations. Yes, Nstreme (1X1) has much less latency, and less latency variance, than Nstreme, as is noted in the forum, but I get different ‘ping’ results when ping’ing from opposite ends of this test network.
I’m using OPSF/MPLS for routing, but it’s not obvious to me why that would have any impact on this difference, and I see the same thing with static routes.
The network illustrated below is two PtP links, back-to-back, connected directly ether port to ether port, with Nstreme (1X1). When ping’ing from one end, I get 2-3 times the ‘average’ latency, and much greater latency spread. Anyone have an idea as to why that might be?
By the way, here’s the nv2 latency as seen with ‘ping’ on the same setup, for comparison, if you’re curious.
Any thoughts/ideas?
Thanks