On Thursday, January 09, 2014 02:08:43 PM Stewart Bryant wrote: > Either or both. I can only speak to native MPLS, as I've never run tunneled MPLS. > I am interested in how often in practice MPLS packets get > misdelivered due to label corruption. Well, first of all, routers would need to report corrupted MPLS frames so operators can glean this data. This isn't something I've come across, but it would be good to find some kind of way to count this across interfaces, if the routers can detect and report them. The known issue about mis-delivery of MPLS frames is poorly- sized MTU interfaces. I have no empirical data as to how this can corrupt successive MPLS frames that may fit into the transit MTU. But in this case, as with any Layer 2 traffic, not enough MTU = dropped frame. Mark.
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