What that large flow in a single LSP? Is this something that FAT lsp would fix?
-Steve On Fri, Mar 20, 2020 at 5:33 PM Nimrod Levy <nimr...@gmail.com> wrote: > I just ran into an issue that I thought was worth sharing with the NANOG > community. With recently increased visibility on keeping the Internet > running smoothly, I thought that sharing this small experience could > benefit everyone. > > I was contacted by my NOC to investigate a LAG that was not distributing > traffic evenly among the members to the point where one member was > congested while the utilization on the LAG was reasonably low. Looking at > my netflow data, I was able to confirm that this was caused by a single > large flow of ESP traffic. Fortunately, I was able to shift this flow to > another path that had enough headroom available so that the flow could be > accommodated on a single member link. > > With the increase in remote workers and VPN traffic that won't hash across > multiple paths, I thought this anecdote might help someone else track down > a problem that might not be so obvious. > > Please take this message in the spirit in which it was intended and > refrain from the snarky "just upgrade you links" comments. > > -- > Nimrod >
