nanog mailing list archives

Re: mpls over microwave


From: Eric Louie <elouie () techintegrity com>
Date: Mon, 9 Feb 2015 12:41:13 -0800

because I have a partial implementation of MPLS routers. Whether the
routers support MPLS or not, the routing on an OSPF level doesn't depend on
MPLS being enabled.  Eventually everything will be MPLS-capable.  The MPLS
network is not multiple-path.  The OSPF network is.

On Sat, Feb 7, 2015 at 12:20 AM, Mark Tinka <mark.tinka () seacom mu> wrote:


On 6/Feb/15 00:31, Eric Louie wrote:
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.

I'm curious why you'd have multiple paths in your network (equal-cost to
boot) where some support and others don't.

Mark.



Current thread: