nanog mailing list archives

Re: mpls over microwave


From: Eric Louie <elouie () techintegrity com>
Date: Thu, 5 Feb 2015 14:31:46 -0800

I work for a fixed wireless provider, and our mpls-capable backhauls are
all running mpls with 9200 MTU with no problem.  The only weirdness I
encounter is if I have multiple equal-cost routes to the same location, one
over MPLS and one not, end up having ping/unreachable issues from my
monitoring equipment.  The solution has been to cost one path (the MPLS)
lower than the other.  The only other problem I had was with radio's that
didn't support larger 9000+ byte MTU packets - we've phased that radio out
for now.  if you run MPLS with 1500 byte MTU, you'll have issues with 1500
byte packets with the DF-bit set.  That was a nasty discovery in the
production network, your mileage will not vary with that problem.

eric at techintegrity dot com
619-335-8148 voice & text
www.techintegrity.com
ericlouie on Twitter

On Thu, Feb 5, 2015 at 1:55 PM, Scott Weeks <surfer () mauigateway com> wrote:



Anyone doing MPLS over microwave radios?  Please
share your experiences on list or off.

scott



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