Thanks for the answers. From the sounds of it, no one knows the real difference between the expansion port, 1310 port, and 1550 port. For real world applications, I would assume the monitor port would be to plug in a handheld meter, and see which channels are coming through that node without breaking the ring. Not sure if their would be a monitor port for both directions is you were using a OADM?
On Mon, Jun 19, 2017 at 2:38 PM, Faisal Imtiaz <fai...@snappytelecom.net> wrote: > Answers in-line ... > > Faisal Imtiaz > Snappy Internet & Telecom > 7266 SW 48 Street > Miami, FL 33155 > Tel: 305 663 5518 x 232 <(305)%20663-5518> > > Help-desk: (305)663-5518 <(305)%20663-5518> 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 <(985)%20536-1212> >> Fax: 985.536.0300 <(985)%20536-0300> >> 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 ..... :) >> >> >> >
