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QSFP+ LR4 Parallel Single Mode transceiver

QSFP+ LR4 Parallel Single Mode transceiver

Carlos_Maldona2
New Contributor II
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?
5 REPLIES 5

Erik_Auerswald
Contributor II
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

Straw__Glyn
Extreme Employee
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...

Straw__Glyn
Extreme Employee
excellent , good luck

Carlos_Maldona2
New Contributor II
Thanks Glyn, I'm running 4.2 so that's good.
GTM-P2G8KFN