I have some questions around enabling BGP to advertise routes between my data center and my Meraki Organization.
Situation: I manage the Meraki branch and hub networks, our SysAdmin and 3rd party vender manage our Azure datacenter. We have several spoke branches and 2 hubs, our corporate office and our vMX in Azure. Right now all the routing for the data center subnets to reach our branch subnets is done via a static route table in Azure (controlled by our SysAdmin). My vMX in Azure has all the data center subnets set up as local networks so they are advertised to all the branch MX devices (controlled by me). All my branch locations are set to load balance traffic over both WAN links and the AutoVPN is set to Active-Active so we have VPN tunnels active on both WAN links. Our branch and Azure subnets are getting more complex so I want to activate BGP to advertise the Meraki and data center subnets, eliminating static routes.
My questions are:
1) If I activate BGP can I still have load balancing and Active-Active VPN tunnels or will I need to set a primary uplink and disable VPN tunnels on the secondary unlink?
2) If BGP is activated will the routes throughout my Meraki networks be disrupted as iBGP is establishing routes?