topic QSFP+ LR4 Parallel Single Mode transceiver in ExtremeSwitching (EOS)

QSFP+ LR4 Parallel Single Mode transceiver

Carlos_Maldona2 — Wed, 06 Jul 2016 02:00:00 GMT

Installing a QSFP+ LR4 Parallel Single Mode transceiver. I had set one of the fg.1.1 to 10GB creating 4 tg ports. In order to use these transceiver, do I set the port back to 40GB?

RE: QSFP+ LR4 Parallel Single Mode transceiver

Straw__Glyn — Thu, 07 Jul 2016 20:34:00 GMT

Hi Carlos,

I believe you are talking about the following transceiver:

10326 - 40Gb, QSFP+ Parallel Single Mode (PSM), MPO connector, 10km SMF

If so i think you should leave the QSFP+ port partitioned to 4x10GbE.
Also you will need to run a minimum of 8.41.01 to support that in firmware

Hope this helps
Best Regards
Glyn

RE: QSFP+ LR4 Parallel Single Mode transceiver

Carlos_Maldona2 — Thu, 07 Jul 2016 20:39:00 GMT

Thanks Glyn, I'm running 4.2 so that's good.

RE: QSFP+ LR4 Parallel Single Mode transceiver

Straw__Glyn — Thu, 07 Jul 2016 20:44:00 GMT

excellent , good luck

RE: QSFP+ LR4 Parallel Single Mode transceiver

Straw__Glyn — Fri, 08 Jul 2016 14:57:00 GMT

published the following article to cover this in the kb in case it comes up again

https://gtacknowledge.extremenetworks.com/articles/Q_A/40Gb-QSFP-Parallel-Single-Mode-PSM-MPO-connec...

RE: QSFP+ LR4 Parallel Single Mode transceiver

Erik_Auerswald — Fri, 08 Jul 2016 16:29:00 GMT

Hi,

as I understand it, this QSFP+ can be used both in split mode to connect 4 devices at 10G, and in 40G mode to connect to another 40G port.

See http://documentation.extremenetworks.com/pluggable/PluggableHardware/QSFP/r_lr4-psm-qsfp-module.shtm...

Thus it depends on the use case if the 40G port should be configured as 40G or 4x10G, not on the transceiver.

Br,
Erik