[j-nsp] Finisar Copper optics in MX5

[Daniel Roesen]

On Tue, Apr 17, 2012 at 11:25:13AM +0200, Matthias Brumm wrote:
> I have searched the net, to find out, that Finisar Juniper coded
> copper SFPs have some problems, especially permanent link-up.

Correct.

> I have also read, that this problem was adressed to Juniper, and they should
> have solved the issue?

Unfortunately not. They don't sell Finisar OEM copper SFPs themselves
for M/MX/EX, so they don't include those in systesting. So no
guarrantees and no real effort to make them work again I guess.

> Has someone an actual status of this?

> We have a bunch of Finisar optics here (coded Juniper EX), for which our
> reseller has said, they are compatible.

Well, they were in DPCs, but not anymore with MPCs (and Trio-based
small MXes). Even in DPCs they could stop working any day.

They MIGHT work in SRX series - I heard they use a different OEM on
those boxes.

> Does anyone recommend any 3rd party copper SFPs? Or should I get originals?

Juniper resells Methode Elec. copper SFPs. FlexOptix (www.flexoptix.net)
does as well. Just let them know you need them for Juniper MX. Multirate
10/100/1000 and autoneg works fine as well on DPCs/MICs supporting that.


Best regards,
Daniel

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