MX250 - convert copper LAN port to WAN port?

[henleyjj]

Hi All,

I have a question which might be pretty basic but I'm unsure of....

We have purchased a MX250 without any SFP+ modules for WAN connectivity for a customer. Therefore I was wondering if it's possible to convert one of the copper ports to a WAN port?

I know this is possible on MX64 but again I'm unsure of MX250.

[BrandonS]

Negatory. You will need to get a SFP. You should be able to use any brand and may want to if time sensitive, but I would suggest getting them a Meraki one so it is all covered by support.

[dalmiroy2k]

Also, keep in mind that if you buy a 10 GbE SFP+ Fiber Transceiver, you also have to use a 10Gb SFP+ transceiver in the other endpoint you are connecting to. You can't downconvert the 10Gb SFP+ to 1 Gb speed in your MX 250. 

[jdsilva · Accepted solution]

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@dalmiroy2k wrote:

Also, keep in mind that if you buy a 10 GbE SFP+ Fiber Transceiver, you also have to use a 10Gb SFP+ transceiver in the other endpoint you are connecting to. You can't downconvert the 10Gb SFP+ to 1 Gb speed in your MX 250. 

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Except, exceptions:

https://www.finisar.com/optical-transceivers/ftlx8574d3bcv

https://www.juniper.net/documentation/en_US/junos/topics/concept/dual-rate-sfp-plus-modules-acx-seri...

https://www.fs.com/products/29901.html

But note, none of those are Meraki certified 🙂