switch old cisco L3 switch with a meraki MS-250 L3

[JJ972]

I have removed the old cisco L3 core switch to my network and replace it with a L3 Meraki MS250 Poe switch.

I have noticed I cannot ping the internet anymore and cannot ping other company devices in the Enterprise Cloud.

Any idea?

[GreenMan]

Quite a bit more info would be needed to help with this.   Did you create routing interfaces on the L£ stack into each of the VLANs, under Switching > Configure > Routing & DHCP?

Given that Support are likley to have visibility of your Dashboard (for all this kind of stuff) - you might be better raising a case with them.

It seems you may have two possible paths to the Internet - one via the MX100, one via Velocloud device.   How do you plan to use that?   Dynamic resilience might be a particular challenge, I think...

[JJ972]

Hi GreenMan,

Yes  routing interface has been set 

for the two paths question, it is working like that on the old cisco L3.

[GreenMan]

OK - assuming Meraki MS switches work the same as old Cisco L3 might be an issue.  What mechanism(s) were they using to handle the two available paths?

[PhilipDAth]

Have you copied across any static routes to the Merki L3 stack?

Was the old Cisco core switch running any dynamic routing protocols?

Going sideways - do you have any high bandwidth servers internally or is everything you access external?  If most things are external, you could move all layer 3 processing to the MX100 to try and simplify things.