MS250 routing failover

[ENIGMATIC]

Hello,

We have a two buildings connected each other with a wireless bridge. Each building has only 1 ISP and we would like to failover traffic over the wireless bridge in case of ISP failure. The firewall of each building are MX and as cores on the first building we have a catalyst 4500 and MS250 in the second one. I know that I can configure IP SLAs on catalyst switches to switch the default gateway but how can I manage this on MS switches ?

 

I thought about connecting WAN 2 of each MX with the wireless bridge instead of using core layer but I wanted to know if somebody has ideas about that please ?

Thanks in advance.

[DarrenOC]

Are you using the MX or the Core switches for Layer 3 routing?  What about using static route tracking on the MX:

https://documentation.meraki.com/MX/Networks_and_Routing/MX_Routing_Behavior

Static Route Tracking

Static routes can be configured with three different availability settings:

• Always active
• Active while the next hop responds to ping
• Active while host responds to ping

[ENIGMATIC]

Hello,

Layer 3 routing is on switches, if I use static route tracking on MX can I do a failover over the lan like the contrary of this article ? https://documentation.meraki.com/MX/Deployment_Guides/MPLS_Failover_to_Meraki_Auto_VPN

[PhilipDAth]

Can you wireless link trunk VLANs?

If so, you could create a VLAN and trunk WAN2 of each MX into the back of the MX at the other site.

If your ISPs have given you a block of routable addresses (like a /29) you could run the ISP circuits into a VLAN at each site, and trunk it across both sites, and then both MX could plug into both ISP circuits.

[ENIGMATIC]

Hello @PhilipDAth,

yes the wireless bridge can trunk vlans, I will try to do that.

Thank you very much.