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:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" <lguillory@reservetele.com> To: "Lewis,Mitchell T." <ml-nanog@techcompute.net>, "NANOG" <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: lguillory@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-bounces@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:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | Public PGP Key ] From: "Lewis,Mitchell T." <ml-nanog@techcompute.net> To: "NANOG" <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 use 1310nm. Thanks. Regards, Mitchell T. Lewis [ mailto:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | Public PGP Key ]

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:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" <lguillory@reservetele.com> To: "Lewis,Mitchell T." <ml-nanog@techcompute.net> Cc: "NANOG" <nanog@nanog.org> 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: lguillory@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-nanog@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:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] [ http://linkedin.com/in/mlewiscc ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | Public PGP Key ] From: "Luke Guillory" < [ mailto:lguillory@reservetele.com | lguillory@reservetele.com ] > To: "Lewis,Mitchell T." < [ mailto:ml-nanog@techcompute.net | ml-nanog@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:lguillory@reservetele.com | lguillory@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-bounces@nanog.org | mailto:nanog-bounces@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:MLewis@TechCompute.Net | mailto:MLewis@TechCompute.Net ] | [ mailto:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] ] [ [ http://linkedin.com/in/mlewiscc | http://linkedin.com/in/mlewiscc ] ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E ] | Public PGP Key ] From: "Lewis,Mitchell T." < [ mailto:ml-nanog@techcompute.net | ml-nanog@techcompute.net ] > To: "NANOG" < [ mailto:nanog@nanog.org | 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 use 1310nm. Thanks. Regards, Mitchell T. Lewis [ [ mailto:MLewis@TechCompute.Net | mailto:MLewis@TechCompute.Net ] | [ mailto:MLewis@TechCompute.Net | MLewis@TechCompute.Net ] ] [ [ http://linkedin.com/in/mlewiscc | http://linkedin.com/in/mlewiscc ] ] |203-816-0371 PGP Fingerprint: 79F2A12BAC77827581C734212AFA805732A1394E [ [ https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E | https://pgp.mit.edu/pks/lookup?op=get&search=0x2AFA805732A1394E ] | Public PGP Key ]

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+nanog@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 <lguillory@reservetele.com<mailto:lguillory@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_u... 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<tel:(256)%20824-5331> 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: lguillory@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.

On Tue, Jun 19, 2018 at 3:16 PM Luke Guillory <lguillory@reservetele.com> 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

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