[177890] in North American Network Operators' Group
Re: Low cost WDM gear
daemon@ATHENA.MIT.EDU (Faisal Imtiaz)
Sat Feb 7 15:56:42 2015
X-Original-To: nanog@nanog.org
Date: Sat, 7 Feb 2015 20:56:29 +0000 (GMT)
From: Faisal Imtiaz <faisal@snappytelecom.net>
To: Kenneth McRae <kenneth.mcrae@me.com>
In-Reply-To: <62dceecf-9668-4cba-bcaa-ae9f2337f974@me.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
More power to you ....=20
I always get a chuckle out of statements such as ... "Compared FiberStore t=
o another Vendor"...=20
It was pointed out to me long time ago.... when someone said.. "My Chevy is=
better than a Ford"....=20
Someone pointed out, hey, which Chevy ? the Chevette ? or the Corvette ? an=
d Which Ford the Fiesta or Mustang ?=20
Every mfg. has a lots and lots of products, and they are always getting imp=
roved...=20
One has to pay attention to the specs.. even the same model products at dif=
ferent times don't have the same specs !=20
:)=20
Faisal Imtiaz=20
Snappy Internet & Telecom=20
7266 SW 48 Street=20
Miami, FL 33155=20
Tel: 305 663 5518 x 232=20
Help-desk: (305)663-5518 Option 2 or Email: Support@Snappytelecom.net=20
----- Original Message -----
> From: "Kenneth McRae" <kenneth.mcrae@me.com>
> To: "Faisal Imtiaz" <faisal@snappytelecom.net>
> Cc: "Rodrigo 1telecom" <rodrigo@1telecom.com.br>, "NANOG" <nanog@nanog.or=
g>
> Sent: Saturday, February 7, 2015 3:49:16 PM
> Subject: Re: Low cost WDM gear
> That's why I engage the engineering resources on their end to make sure t=
he
> chosen candidate will support the use case. I have now performed an A/B
> comparison and the FiberStore gear is inferior. Excessive loss on the mux
> and optics.
> On Feb 07, 2015, at 12:44 PM, Faisal Imtiaz <faisal@snappytelecom.net> wr=
ote:
> > If you pay close attention to the Spec Sheets, on power output, inserti=
on
> > loss, sensitivity, and do the proper calculation for your link, then us=
ing
> > anyone's products, passive or active will work unless the devices do no=
t
> > meet specified specs.
>=20
> > If you don't do your homework, cals on the design, loss, and just buy s=
tuff
> > based on whatever, then it does not matter who the mfg. is, you are ver=
y
> > very likely to be surprised in a bad way.
>=20
> > :)
>=20
> > Faisal Imtiaz
>=20
> > Snappy Internet & Telecom
>=20
> > ----- Original Message -----
>=20
> > > From: "Rodrigo 1telecom" < rodrigo@1telecom.com.br >
> >=20
>=20
> > > To: "Kenneth McRae" < kenneth.mcrae@me.com >
> >=20
>=20
> > > Cc: "NANOG" < nanog@nanog.org >
> >=20
>=20
> > > Sent: Saturday, February 7, 2015 3:24:43 PM
> >=20
>=20
> > > Subject: Re: Low cost WDM gear
> >=20
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> > > What others vendors do you using? Here in Brazil only PADTEC have thi=
s
> >=20
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> > > passive solution... Some days ago Digitel contact me to show your
> > > multiplex
> >=20
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> > > solution... Is a active solution...
> >=20
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> > > We import this from fiberstore, but i don't know others vendors to bu=
y
> > > 10G
> >=20
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> > > sfp+ cwdm and this mux/demux...
> >=20
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> > > Enviado via iPhone =EF=A3=BF
> >=20
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> > > Grupo Connectoway
> >=20
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> > > > Em 07/02/2015, =C3=A0s 16:04, Kenneth McRae < kenneth.mcrae@me.com =
>
> > > > escreveu:
> >=20
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> > > >
> >=20
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> > > > Hi Enviado,
> >=20
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> > > >
> >=20
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> > > > I cannot recommend FiberStore as I had a bad experience with them. =
I
> >=20
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> > > > needed to cover only 3km from A to B side. When using 10km optics, =
I
> > > > saw
> >=20
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> > > > a loss of over 5db with their passive mux inserted into the path wh=
ich
> >=20
>=20
> > > > created a total loss of over -20db which is outside of the toleranc=
es
> > > > for
> >=20
>=20
> > > > our equipment with 10km SFP+. Using another vendors low insertion l=
oss
> >=20
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> > > > mux corrected our issue. I am sure if you are using an 80km optic, =
you
> >=20
>=20
> > > > may be able to tolerate a higher insertion loss to cover < 60km. I =
also
> >=20
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> > > > notice that their CDWM optics averaged about 3db less in power outp=
ut
> > > > when
> >=20
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> > > > compared to other vendors.
> >=20
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> > > >
> >=20
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> > > > Thanks
> >=20
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> > > >
> >=20
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> > > > Kenneth
> >=20
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> > > >
> >=20
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> > > >> On Feb 07, 2015, at 10:33 AM, Rodrigo 1telecom <
> > > >> rodrigo@1telecom.com.br
> > > >> >
> >=20
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> > > >> wrote:
> >=20
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> > > >>
> >=20
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> > > >
> >=20
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> > > >> Hi kenneth... which the distance do you have from side A to side B
> > > >> when
> >=20
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> > > >> you using passive solutions from fiberstore( mux and demux)?
> >=20
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> > > >> I buy this mux and demux(4 channels single fiber) and only make a =
test
> >=20
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> > > >> about 60km( mux side A and demux on side B) with sfp+10gb for 80km=
...
> > > >> (
> >=20
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> > > >> only see ddm on my ex3300( about -19db for 60km). Test switch acce=
ss
> > > >> with
> >=20
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> > > >> ssh and pinging tests...
> >=20
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> > > >> What kind os issue do you have? For distances less than 60km is th=
is
> >=20
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> > > >> solution good?
> >=20
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> > > >> Thanks!!!
> >=20
>=20
> > > >>
> >=20
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> > > >> Enviado via iPhone =EF=A3=BF
> >=20
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> > > >> Grupo Connectoway
> >=20
>=20
> > > >>
> >=20
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> > > >>> Em 07/02/2015, =C3=A0s 14:55, Kenneth McRae < kenneth.mcrae@me.co=
m >
> > > >>> escreveu:
> >=20
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> > > >>> Mike,
> >=20
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> > > >>> I just replaced a bunch of FiberStore WDM passive muxes with OSI
> > > >>> Hardware
> >=20
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> > > >>> equipment. The FiberStore gear was a huge disappointment (excessi=
ve
> >=20
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> > > >>> loss, poor technical support, refusal to issue refund without
> >=20
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> > > >>> threatening legal action, etc.). I have had good results from the=
OSI
> >=20
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> > > >>> equipment so far. I run passive muxes for CWDM (8 - 16 channels).
> >=20
>=20
> > > >>> On Feb 07, 2015, at 09:51 AM, Manuel Mar=C3=ADn < mmg@transtelco.=
net >
> > > >>> wrote:
> >=20
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> > > >>> Hi Mike
> >=20
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> > > >>> I can recommend a couple of vendors that provide cost effective
> >=20
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> > > >>> solutions.
> >=20
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> > > >>> Ekinops & Packetlight.
> >=20
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> > > >>> On Saturday, February 7, 2015, Mike Hammett < nanog@ics-il.net >
> > > >>> wrote:
> >=20
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> > > >>> I know there are various Asian vendors for low cost (less than $5=
00)
> >=20
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> > > >>> muxes
> >=20
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> > > >>> to throw 16 or however many colors onto a strand. However, they d=
on't
> >=20
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> > > >>> work
> >=20
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> > > >>> so well when you don't control the optics used on both sides
> > > >>> (therefore
> >=20
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> > > >>> must use standard wavelengths), obviously only do a handful of
> > > >>> channels
> >=20
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> > > >>> and
> >=20
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> > > >>> have a distance limitation.
> >=20
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> > > >>> What solutions are out there that don't cost an arm and a leg?
> >=20
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> > > >>> -----
> >=20
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> > > >>> Mike Hammett
> >=20
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> > > >>> Intelligent Computing Solutions
> >=20
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> > > >>> http://www.ics-il.com
> >=20
>=20
> > > >>> --
> >=20
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> > > >>> TRANSTELCO| Manuel Marin | VP Engineering | US: *+1 915-217-2232*=
|
> > > >>> MX:
> >=20
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> > > >>> *+52
> >=20
>=20
> > > >>> 656-257-1109*
> >=20
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> > > >>> CONFIDENTIALITY NOTICE: This communication is intended only for t=
he
> > > >>> use
> >=20
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> > > >>> of the individual or entity to which it is addressed and may cont=
ain
> >=20
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> > > >>> information that is privileged, confidential, and exempt from
> > > >>> disclosure
> >=20
>=20
> > > >>> under applicable law. If you are not the intended recipient of th=
is
> >=20
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> > > >>> information, you are notified that any use, dissemination,
> > > >>> distribution,
> >=20
>=20
> > > >>> or
> >=20
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> > > >>> copying of the communication is strictly prohibited.
> >=20
>=20
> > > >>> AVISO DE CONFIDENCIALIDAD: Esta comunicaci=C3=B3n es s=C3=B3lo pa=
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> > > >>> la
> >=20
>=20
> > > >>> persona o entidad a la que se dirige y puede contener informaci=
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> >=20
>=20
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> >=20
>=20
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unicaci=C3=B3n est=C3=A1
> >=20
>=20
> > > >>> estrictamente prohibido.
> >=20
>
