Circulator and LR4/ER4 (was Re: Tunable QSFP Optics)
Hi Mitchell, Le 19/06/2018 à 18:27, Lewis,Mitchell T. a écrit : > Does anyone know if any Single Mode QSFPs exist on the market that > use wavelengths other than 1310nm (either self tunable or factory > tuned)? I found none. > I am looking to put more than one 40gb link on a fiber pair > similar to using DWDM OADMs for 1g & 10g but can't seem to find any > qsfp optics that don't use 1310nm. I' considering the use of a circulator to do 40/100G over a single strand. Do you think that would work ? Would it solve four problem ? https://www.fs.com/products/33364.html Best regards, -- Jérôme Nicolle +33 6 19 31 27 14
Re: Tunable QSFP Optics
This little bad-boy has the wavelengths (I believe all exactly 1310.00nm) broken out onto individual fibers (MTP/MPO) https://www.fs.com/products/37016.html Combine with: https://www.fs.com/products/30515.html and 4 DWDM SFP+ modules, plus 4 standard 10G LR SFP+. Receiver sensitivity kind of sucks, but regen/amps should make interesting deployments possible with standard gear. -Ben. > On Jun 19, 2018, at 9:53 AM, Luke Guillory wrote: > > They still leave the transceiver as a single 1310, the lanes color isn't ever > expose since the mux takes place within the transceiver. When I looked into > this for 40g and 100g I found no way to passively do it. > > > > > > > Luke Guillory > Vice President – Technology and Innovation > > 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 Lewis,Mitchell T. > Sent: Tuesday, June 19, 2018 11:42 AM > To: NANOG > Subject: Re: Tunable QSFP Optics > > Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g > wavelengths(lanes) which typically are: > 1264.5- 1277.5 nm > 1284.5–1297.5 nm > 1304.5–1317.5 nm > 1324.5–1337.5 nm > My question is are there any vendors that make optics which 4 > wavelengths(lanes) are something other than those typically used by > 40GBase-LR4? > > > Regards, > > Mitchell T. Lewis > > [ mailto:mle...@techcompute.net | mle...@techcompute.net ] > > > [ http://linkedin.com/in/mlewiscc ] |203-816-0371 > > PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ > https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP > Key ] > > > > From: "Lewis,Mitchell T." > To: "NANOG" > Sent: Tuesday, 19 June, 2018 12:27:13 > Subject: Tunable QSFP Optics > > Does anyone know if any Single Mode QSFPs exist on the market that use > wavelengths other than 1310nm (either self tunable or factory tuned)? I am > looking to put more than one 40gb link on a fiber pair similar to using DWDM > OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use > 1310nm. > > Thanks. > > > Regards, > > Mitchell T. Lewis > > [ mailto:mle...@techcompute.net | mle...@techcompute.net ] > > > [ http://linkedin.com/in/mlewiscc ] |203-816-0371 > > PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ > https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP > Key ] > > >
Re: Tunable QSFP Optics
On 6/19/18 11:27 AM, Lewis,Mitchell T. wrote: Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Inphi ColorZ? They aren't tunable but you can order a variety of different wavelengths in the 15xx nm range. Wes Felter now hiring cloud DCI DWDM operators in Austin/NYC/Boston
Re: Tunable QSFP Optics
On Tue, Jun 19, 2018 at 3:16 PM Luke Guillory wrote: > Seeing that it seems I’m misunderstanding things, so I went grab a meter > and checked what was leaving. Both of the 100g SFPs were only outputting on > 1310, while the 40g showed each of the 4 lanes. > > Thanks much for checking - I didn't have a meter handy. I certainly learned something about the tighter spacing of 100G colors. > > -- -- Hunter Fuller Network Engineer VBH Annex B-5 +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure
Re: Tunable QSFP Optics
On 06/19/2018 04:16 PM, Luke Guillory wrote: > Seeing that it seems I’m misunderstanding things, so I went grab a meter and > checked what was leaving. Both of the 100g SFPs were only outputting on 1310, > while the 40g showed each of the 4 lanes. IIRC, the lambda spacing for 100GBASE-LR4 is tighter than 40GBASE-LR4. 40G is spaced on the normal 20nm CWDM grid. 100G is spaced tighter at just under 5nm so that the entire thing mostly fits within the 20nm-wide "1310nm" CWDM grid. If you're using a CWDM meter, it'll probably bin it exactly that way. There's a separate non-IEEE "100GBASE-CWDM4" that has the 20nm lambda spacing like 40G does. -- Brandon Martin
RE: Tunable QSFP Optics
Seeing that it seems I’m misunderstanding things, so I went grab a meter and checked what was leaving. Both of the 100g SFPs were only outputting on 1310, while the 40g showed each of the 4 lanes. 100GBASE-LR4 QSFP28 Transceiver Module (SMF, 1310nm, 10km, LC, DOM) Optical Components DML 1310nm Juniper 100GBASE-ER4, Showing 1310 as the only color leaving. Parameter 100GBASE-ER4 Optical interface Single-mode Standard IEEE 802.3ba-2010 Maximum distance SMF cable, 40 km (24.9 miles) Transmitter wavelength per lane 1294.53 through 1296.59 nm 1299.02 through 1301.09 nm 1303.54 through 1305.63 nm 1308.09 through 1310.19 nm 40GBASE-LR4 Compatible 40GBASE-LR4 QSFP+ Transceiver Module (SMF, 1310nm, 10km, LC, DOM) Optical Components DFB CWDM [cid:image001.jpg@01D407E0.78FB4970] From: Hunter Fuller [mailto:hf0002+na...@uah.edu] Sent: Tuesday, June 19, 2018 2:28 PM To: Luke Guillory Cc: NANOG Subject: Re: Tunable QSFP Optics On Tue, Jun 19, 2018 at 11:53 AM Luke Guillory mailto:lguill...@reservetele.com>> wrote: They still leave the transceiver as a single 1310, the lanes color isn't ever expose since the mux takes place within the transceiver. When I looked into this for 40g and 100g I found no way to passively do it. Luke, Can you link a document that corroborates this? I can only find ones that show it as 4 separate lanes and 4 separate colors, visible on the actual output. Example: https://www.nanog.org/meetings/nanog44/presentations/Monday/Hankins_100gbe_update_N44.pdf slide 11 This is also what I've observed anecdotally, but there could be other explanations, I am admittedly not an expert. -- -- Hunter Fuller Network Engineer VBH Annex B-5 +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure Luke Guillory Vice President – Technology and Innovation [cid:imagee0a454.JPG@9ab64be1.4fabdd45] <http://www.rtconline.com> Tel:985.536.1212 Fax:985.536.0300 Email: lguill...@reservetele.com Web:www.rtconline.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.
Re: Tunable QSFP Optics
On Tue, Jun 19, 2018 at 11:53 AM Luke Guillory wrote: > They still leave the transceiver as a single 1310, the lanes color isn't > ever expose since the mux takes place within the transceiver. When I looked > into this for 40g and 100g I found no way to passively do it. > Luke, Can you link a document that corroborates this? I can only find ones that show it as 4 separate lanes and 4 separate colors, visible on the actual output. Example: https://www.nanog.org/meetings/nanog44/presentations/Monday/Hankins_100gbe_update_N44.pdf slide 11 This is also what I've observed anecdotally, but there could be other explanations, I am admittedly not an expert. -- -- Hunter Fuller Network Engineer VBH Annex B-5 +1 256 824 5331 <(256)%20824-5331> Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure
Re: Tunable QSFP Optics
On 06/19/2018 12:41 PM, Lewis,Mitchell T. wrote: Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Did 40GBASE-FR ever catch on? It was supposed to be single-lane serial 40Gbps on 1310nm with the receiver also accepting 1550nm. For that matter, what are all the optical transport folks using for ~40Gbps OTU3? Or did they all just skip that and go straight to ~100Gbps OTU4 on coherent optics (which are fairly readily available albeit in CFP, not QSFP). -- Brandon Martin
Re: Tunable QSFP Optics
It is a bummer, if 40/100g optics existed that used 1550 or some other color than those could be muxed onto same fiber pair as 1310 optic (The method for passively doing that extraneous to this conversation. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" To: "Lewis,Mitchell T." Cc: "NANOG" Sent: Tuesday, 19 June, 2018 13:09:08 Subject: RE: Tunable QSFP Optics No, though the lane colors are irrelevant since we only care about the final output color. Why the lanes can’t be muxed into another output color I’m not sure, I can only find specs listed for the lanes but nothing for the final mux leaving the transceiver. Luke Guillory Vice President – Technology and Innovation [ http://www.rtconline.com/ ] Tel:985.536.1212 Fax:985.536.0300 Email: lguill...@reservetele.com Web:www.rtconline.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. From: Lewis,Mitchell T. [mailto:ml-na...@techcompute.net] Sent: Tuesday, June 19, 2018 11:56 AM To: Luke Guillory Cc: NANOG Subject: Re: Tunable QSFP Optics So you weren't able to find anyone that uses different lane colors?(As an example 1550). I am not looking to mux alongside 10g waves, I am just looking to put 3 or 4 on a single fiber pair. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" < [ mailto:lguill...@reservetele.com | lguill...@reservetele.com ] > To: "Lewis,Mitchell T." < [ mailto:ml-na...@techcompute.net | ml-na...@techcompute.net ] >, "NANOG" < [ mailto:nanog@nanog.org | nanog@nanog.org ] > Sent: Tuesday, 19 June, 2018 12:53:07 Subject: RE: Tunable QSFP Optics They still leave the transceiver as a single 1310, the lanes color isn't ever expose since the mux takes place within the transceiver. When I looked into this for 40g and 100g I found no way to passively do it. Luke Guillory Vice President – Technology and Innovation Tel: 985.536.1212 Fax: 985.536.0300 Email: [ mailto:lguill...@reservetele.com | 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 | mailto:nanog-boun...@nanog.org ] ] On Behalf Of Lewis,Mitchell T. Sent: Tuesday, June 19, 2018 11:42 AM To: NANOG Subject: Re: Tunable QSFP Optics Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Regards, Mitchel
RE: Tunable QSFP Optics
No, though the lane colors are irrelevant since we only care about the final output color. Why the lanes can’t be muxed into another output color I’m not sure, I can only find specs listed for the lanes but nothing for the final mux leaving the transceiver. Luke Guillory Vice President – Technology and Innovation [cid:image379199.JPG@ed701a6b.43904ddf] <http://www.rtconline.com> Tel:985.536.1212 Fax:985.536.0300 Email: lguill...@reservetele.com Web:www.rtconline.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. From: Lewis,Mitchell T. [mailto:ml-na...@techcompute.net] Sent: Tuesday, June 19, 2018 11:56 AM To: Luke Guillory Cc: NANOG Subject: Re: Tunable QSFP Optics So you weren't able to find anyone that uses different lane colors?(As an example 1550). I am not looking to mux alongside 10g waves, I am just looking to put 3 or 4 on a single fiber pair. [https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif] Regards, Mitchell T. Lewis mle...@techcompute.net<mailto:mle...@techcompute.net> [https://static.licdn.com/scds/common/u/img/webpromo/btn_profile_greytxt_80x15.png]<http://linkedin.com/in/mlewiscc>|203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E Public PGP Key<https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E> From: "Luke Guillory" mailto:lguill...@reservetele.com>> To: "Lewis,Mitchell T." mailto:ml-na...@techcompute.net>>, "NANOG" mailto:nanog@nanog.org>> Sent: Tuesday, 19 June, 2018 12:53:07 Subject: RE: Tunable QSFP Optics They still leave the transceiver as a single 1310, the lanes color isn't ever expose since the mux takes place within the transceiver. When I looked into this for 40g and 100g I found no way to passively do it. Luke Guillory Vice President – Technology and Innovation Tel:985.536.1212 Fax:985.536.0300 Email: lguill...@reservetele.com<mailto: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 Lewis,Mitchell T. Sent: Tuesday, June 19, 2018 11:42 AM To: NANOG Subject: Re: Tunable QSFP Optics Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net<mailto:mle...@techcompute.net> ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Lewis,Mitchell T." mailto:ml-na...@techcompute.net>> To: "NANOG" mailto:nanog@nanog.org>> Sent: Tuesday, 19 June, 2018 12:27:13 Subject: Tunable QSFP Optics Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't
Re: Tunable QSFP Optics
So you weren't able to find anyone that uses different lane colors?(As an example 1550). I am not looking to mux alongside 10g waves, I am just looking to put 3 or 4 on a single fiber pair. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" To: "Lewis,Mitchell T." , "NANOG" Sent: Tuesday, 19 June, 2018 12:53:07 Subject: RE: Tunable QSFP Optics They still leave the transceiver as a single 1310, the lanes color isn't ever expose since the mux takes place within the transceiver. When I looked into this for 40g and 100g I found no way to passively do it. Luke Guillory Vice President – Technology and Innovation 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 Lewis,Mitchell T. Sent: Tuesday, June 19, 2018 11:42 AM To: NANOG Subject: Re: Tunable QSFP Optics Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Lewis,Mitchell T." To: "NANOG" Sent: Tuesday, 19 June, 2018 12:27:13 Subject: Tunable QSFP Optics Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
RE: Tunable QSFP Optics
They still leave the transceiver as a single 1310, the lanes color isn't ever expose since the mux takes place within the transceiver. When I looked into this for 40g and 100g I found no way to passively do it. Luke Guillory Vice President – Technology and Innovation 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 Lewis,Mitchell T. Sent: Tuesday, June 19, 2018 11:42 AM To: NANOG Subject: Re: Tunable QSFP Optics Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Lewis,Mitchell T." To: "NANOG" Sent: Tuesday, 19 June, 2018 12:27:13 Subject: Tunable QSFP Optics Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
Re: Tunable QSFP Optics
Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 1264.5- 1277.5 nm 1284.5–1297.5 nm 1304.5–1317.5 nm 1324.5–1337.5 nm My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those typically used by 40GBase-LR4? Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ] From: "Lewis,Mitchell T." To: "NANOG" Sent: Tuesday, 19 June, 2018 12:27:13 Subject: Tunable QSFP Optics Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
RE: Tunable QSFP Optics
I believe the 40g and 100g optics are already muxing 4 channels within the transceiver before outputting it to 1310. https://community.fs.com/blog/40gbase-lr4-qsfp-transceiver-links-cwdm-and-psm.html Luke Guillory Vice President – Technology and Innovation 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 Lewis,Mitchell T. Sent: Tuesday, June 19, 2018 11:27 AM To: NANOG Subject: Tunable QSFP Optics Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
RE: Tunable QSFP Optics
> Does anyone know if any Single Mode QSFPs exist on the market that use > wavelengths other than 1310nm (either self tunable or factory tuned)? > I am looking to put more than one 40gb link on a fiber pair similar to using > DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use > 1310nm. I've probed our optics vendor about this in the past when trying to achieve something similar. Although they state 1310nm, they actually run at 4 different 10G wavelengths (one of which is 1310) and as such are not suitable for Mux/Demuxing.
Re: Tunable QSFP Optics
QSFPs generally output 4 lanes of traffic. Either 4 channels at 10G or 4 channels at 25G. So unless you find an optic that can do single-channel OTN at 100G, you’re probably going to have a hard time plugging them into a DWDM shelf. at 12:27 PM, Lewis,Mitchell T. wrote: Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
Re: Tunable QSFP Optics
You're gonna need to do something like: https://www.packetlight.com/innovations/40g-connectivity On Tue, Jun 19, 2018 at 11:27 AM, Lewis,Mitchell T. < ml-na...@techcompute.net> wrote: > Does anyone know if any Single Mode QSFPs exist on the market that use > wavelengths other than 1310nm (either self tunable or factory tuned)? I am > looking to put more than one 40gb link on a fiber pair similar to using > DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't > use 1310nm. > > Thanks. > > > Regards, > > Mitchell T. Lewis > > [ mailto:mle...@techcompute.net | mle...@techcompute.net ] > > > [ http://linkedin.com/in/mlewiscc ] |203-816-0371 > > PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ > https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public > PGP Key ] > >
Tunable QSFP Optics
Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:mle...@techcompute.net | mle...@techcompute.net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get=0x2AFA805732A1394E | Public PGP Key ]
