[j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber?

[Karl Gerhard]

Hello Niall,

thank you very much.
I solved the issue by buying a plain old 1000Base LX SFP module, which works flawlessly in EX4300.

Regards
Karl

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
*From:* Niall Donaghy [mailto:niall.donaghy at geant.org]
*Sent:* Friday, Jul 20, 2018 4:21 AM CEST
*To:* Karl Gerhard; juniper-nsp at puck.nether.net
*Subject:* [j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber?

> Hi Karl,
>
> Indeed the EX-UM-4X4SFP should be dual-mode capable.
> I think it's auto-detecting your dual-mode SFP as 10GBase LR and I'm not
> aware of any way to configure this - I think with the particular SFP you're
> using, 10GBase LR is the only mode you'll get. IE: You would get 1000Base LX
> only with a different SFP.
>
> From:
> https://www.juniper.net/documentation/en_US/release-independent/junos/topics
> /reference/specifications/uplink-module-ex4300.html
>
> """
> The SFP+ uplink module ports can operate either in 10-gigabit or in
> 1-gigabit mode depending on the transceiver you install in them. The
> operating mode for an SFP+ uplink module is shown in the output of the 'show
> chassis pic fpc-slot slot number pic-slot slot number' command.
> """
>
> In terms of SFP compatibility, JNPR offer:
> https://apps.juniper.net/hct/product/#prd=EX4300
>
> You didn't state whether the SFP you're using was from JNPR or someone else,
> and if JNPR, what the P/N is. Can you elaborate?
>
> Br,
> Niall
>
>
> -----Original Message-----
> From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of
> Karl Gerhard
> Sent: 19 July 2018 22:07
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] EX4300 + EX-UM-4X4SFP, can it do 1000Base over fiber?
>
> Hello
>
> I have an EX4300 with a EX-UM-4X4SFP Uplink module (with 4x SFP slots) and a
> dual mode SFP Module that supports 1000Base LX and 10GBase LR. When inserted
> into the EX4300 the SFP module is always in 10GBase LR mode. Is there any
> way to configure any or all of the SFP slots to 1000Base?
>
> The official specs claim that the uplink module is dual-mode 10GbE/1GbE:
> "Uplink Module Options:
> Others: 4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics"
> https://www.juniper.net/us/en/local/pdf/datasheets/1000467-en.pdf
>
> Also, there is this one guy on the internet (tm) who claims that he managed
> to force an EX4300 into 1000Base mode on the SFP slots.
> https://forums.juniper.net/t5/Ethernet-Switching/ex4200-EX-UM-2X4SFP-module-
> support-1G-10G-or-all-port-4x1g-or/td-p/317240
>
> Any help is highly appreciated.
>
> Regards
> Karl
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp