MX250 WAN Port -SPF Compatibility

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ignatius
Just browsing

MX250 WAN Port -SPF Compatibility

Hi, Does anyone know if MA-SFP-1GB-TX(1 GbE SFP Copper Module) Compatible for MX250 On WAN Ports.

 

Thank you,

Ignatius

 

1 ACCEPTED SOLUTION
ww
Kind of a big deal
Kind of a big deal

Yes you can run SFP and SFP+ in this WAN ports.

 

 

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14 REPLIES 14
ww
Kind of a big deal
Kind of a big deal

Yes you can run SFP and SFP+ in this WAN ports.

 

 

ignatius
Just browsing

Hi, Thanks for your reply, so you mean to say 1gig Copper SFP i can connect on WAN ports right ?

ww
Kind of a big deal
Kind of a big deal

yes.

also this page show the compatible meraki spf's:

https://meraki.cisco.com/products/appliances/mx250

 

MerakiDave
Meraki Employee

Correct, the WAN interfaces were designed to be SFP+ for that reason, to maximize flexibility so you could use 1G copper or fiber SFP transceivers or use 10G SFP+ depending on what Internet-facing handoff you have.

Hi,

 

Thank you! all for your support and inputs, it helped.

 

-Ignatius

 

Paul_s
Conversationalist

Not doubting your information at all (and it makes perfect sense) but I can't see any reference to this compatibility in any official documentation.

The data sheet does list 1Gb SFPs but doesn't specifically say they can be used in the WAN port.

 

Just wondering if there is any official document or guide that mentions this?

I tried a 1Gb RJ45 Cisco compatible from FS.com.  It would link, then go off... then link, and go off, and keep this cycle.  I talked to Meraki and they said a genuine Cisco module would work...   But I have doubt.  I am hoping to find one, and test before I go buy a 250 ish dollar module.   Its my plan.. we'll see.

kordm
Getting noticed


@Slate wrote:

I tried a 1Gb RJ45 Cisco compatible from FS.com.  It would link, then go off... then link, and go off, and keep this cycle.  I talked to Meraki and they said a genuine Cisco module would work...   But I have doubt.  I am hoping to find one, and test before I go buy a 250 ish dollar module.   Its my plan.. we'll see.


That sounds fishy. An unsupported SFP just wouldn't work at all IME, though I've actually never had an issue with that in any routers or switches. I only run into that issue with NICs and stacking ports that only support direct-attach cables.

FS.com normally has been really good in the past.  But I tried 2 different compatible modules and same results, so its not like it was one specific bad module.  Right now I am running it over a SX fiber module to the ISP.  But there is an ISP issue with the Fiber side, so we were hoping to switch back to copper...

cmr
Kind of a big deal
Kind of a big deal

We use genuine Cisco GLC-T modules in the WAN 1 port of MX250s and they work fine.

Nice to hear!  Thanks for the conformation!

Ahoste
Getting noticed

Hi Slate,

 

This is a little older post but I was having this exact same issue when connecting a WAN 2.

after talking with Meraki support they had me upgrade to the latest beta software but that still didn't help.

 

It turned out that it was the module. 

In our WAN 1 we were using an RJ45 to sfp MA-SFP-1GB-TX that was working but in out WAN 2 we were using an GLC-T module which had same behaviour as you are describing.

Cisco should definitely have some documentation on which ones you can and cannot use. huge waste of time.

CptnCrnch
Kind of a big deal

@Ahoste: Are you referring to this documentation? https://meraki.cisco.com/lib/pdf/meraki_datasheet_sfp.pdf

Hi,

 

I was indeed, I did not see this. I do stand corrected, thanks for the info.

little bit weird that Cisco support has me update to beta software first instead of checking this. 

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