[177818] in North American Network Operators' Group
Re: mpls over microwave
daemon@ATHENA.MIT.EDU (Naslund, Steve)
Thu Feb 5 21:38:51 2015
X-Original-To: nanog@nanog.org
From: "Naslund, Steve" <SNaslund@medline.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Fri, 6 Feb 2015 02:38:42 +0000
In-Reply-To: <6403766.13356.1423173483834.JavaMail.mhammett@ThunderFuck>
Errors-To: nanog-bounces@nanog.org
We run Dragonwave systems and have no issues at all. MPLS in itself doesn'=
t make a difference since the gear is a straight Ethernet link. Just make =
sure your gear handles your frame sizes and tagging and you should be good.=
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As long as your radio link is engineered right you should have high reliabi=
lity. The key is having enough margin to maintain links during fades. So =
for example our link runs at -34 dbm and our receivers are good down to abo=
ut -65 dbm at this rate. That gives us a roughly 35 dbm margin for degrada=
tion before the modems will change modulation a to a lower speed. Here in =
chicago we have seen maybe a total of an hour of weather related fade in a =
10 years period on a 20 mile link running 600 Mbps. They are very popular=
for low latency since they actually have less latency than fiber. The hig=
h frequency traders pay big bucks to get on the microwaves between markets =
because of that trait. Microwaves through air are faster than photons in a=
fiber cable.
Steven Naslund
Chicago IL
Sent from my iPhone
> On Feb 5, 2015, at 4:03 PM, Mike Hammett <nanog@ics-il.net> wrote:
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> Shouldn't really be any different as long as your gear supports the appro=
priate MTUs.=20
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> -----=20
> Mike Hammett=20
> Intelligent Computing Solutions=20
> http://www.ics-il.com=20
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> ----- Original Message -----
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> From: "Scott Weeks" <surfer@mauigateway.com>=20
> To: nanog@nanog.org=20
> Sent: Thursday, February 5, 2015 3:55:04 PM=20
> Subject: mpls over microwave=20
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> Anyone doing MPLS over microwave radios? Please=20
> share your experiences on list or off.=20
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> scott=20
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