Answers in-line ... Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232
Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net > From: "Colton Conor" <colton.co...@gmail.com> > To: "Mike Hammett" <na...@ics-il.net> > Cc: "Luke Guillory" <lguill...@reservetele.com>, "nanog list" > <nanog@nanog.org>, > "Faisal Imtiaz" <fai...@snappytelecom.net> > Sent: Monday, June 19, 2017 3:30:37 PM > Subject: Re: DWDM Mux/Demux using 40G Optics > I guess that is the real question. Besides the client ports that are clearly > identified by channel number on Muxes, what channels can the special ports > handle? > http://www.fs.com/products/43723.html It has 4 special service port options: > 1. Expansion Port (Based on what I am seeing, I think this would be to stack > another mux if you needed more channels. So I assume it allows all channels to > be added besides the client channels?) Exactly... this is basically a pass thru port, i.e. what is not getting mux/demux should get passed thru (keep the insertion loss in mind). > 2. Monitor Port (I think this is just a tap that you would hook a monitor up > to, > and be able to see all channels coming through with a meter. I assume not a > good idea to add/drop channels through this port)? I don't use this port, but supposedly it will pass a fraction 5% of the light from the main port so that it can be monitored. May be someone else can offer some practical use for this port. > 3. 1310nm Port (Labeled as 1310, but clearly allows more than just 1310 since > tutorial is saying it supports QSFP+ which is 1270 - 1330 nm, so what range > does it really support or is there no a range?) Not sure about the range question, but this is the port for having the 40g/100g QSFP+ pass thru > 4. 1550nm Port (Labeled as 1550nm, but I wonder if its like the 1330nm?) I have not had the need to explore this in detail, but from my initial understanding, this can be used for ZR (long range optics) and or to stack a DWDM Mux > Would you recommend a monitor port on every mux you buy? As I shared above, I don't. > On Mon, Jun 19, 2017 at 2:18 PM, Mike Hammett < na...@ics-il.net > wrote: >> Verify pass-through frequencies for the 1310 (or equivalent) for the passive >> mux >> in question. This would only work for a single channel. >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> Midwest-IX >> http://www.midwest-ix.com >> From: "Luke Guillory" < lguill...@reservetele.com > >> To: "Faisal Imtiaz" < fai...@snappytelecom.net >, "Colton Conor" < >> colton.co...@gmail.com > >> Cc: "nanog list" < nanog@nanog.org > >> Sent: Monday, June 19, 2017 2:13:10 PM >> Subject: RE: DWDM Mux/Demux using 40G Optics >> Faisal, >> How would he inject his current 4x10 40g into the mux which is currently on a >> single LC cable? >> Luke Guillory >> Network Operations Manager >> Tel: 985.536.1212 >> Fax: 985.536.0300 >> Email: lguill...@reservetele.com >> Reserve Telecommunications >> 100 RTC Dr >> Reserve, LA 70084 >> _________________________________________________________________________________________________ >> Disclaimer: >> The information transmitted, including attachments, is intended only for the >> person(s) or entity to which it is addressed and may contain confidential >> and/or privileged material which should not disseminate, distribute or be >> copied. Please notify Luke Guillory immediately by e-mail if you have >> received >> this e-mail by mistake and delete this e-mail from your system. E-mail >> transmission cannot be guaranteed to be secure or error-free as information >> could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, >> or >> contain viruses. Luke Guillory therefore does not accept liability for any >> errors or omissions in the contents of this message, which arise as a result >> of >> e-mail transmission. . >> -----Original Message----- >> From: NANOG [mailto: nanog-boun...@nanog.org ] On Behalf Of Faisal Imtiaz >> Sent: Monday, June 19, 2017 2:02 PM >> To: Colton Conor >> Cc: nanog list >> Subject: Re: DWDM Mux/Demux using 40G Optics >> Answers in-line below. >> If you look at the CWDM Muxes (8 or 9 channel) you will notice a common >> configuration of >> Upgrade Port (expansion port) + 1450 or 1470 to 1610nm >> in the DWDM muxes you will see them listed as # of Port + 1310 pass thru >> channel. >> These are exactly what you are looking for ..... :)