BGP Dual WAN setup with remote and local site ROS7

RouterOS Forwarding Protocols
1

Hello,
i have a bgp session with my upstream and all is working well, now i want to deploy a backup bgp session from a remote router in a remote datacenter.
I have established the bgp session there as well but i do not know how to dua a failover setup so i can use backup link when main one at the local site goes down.
Right now on the remote router i do not have ospf, but i have ospf on my network.
My questions are this:

  1. Do i need OSPF to carry the remote site bgp session default route?
  2. Do i need to make a tunnel from R2 (remote) to R1 (local)?
  3. Do i need to make an IBGP session between R1 and R2 for the dual wan failover?
    Thank you so much in advance.
    Alex
2

Hi,

We will need more information. There are many ways to make failover.

Pls make a small drawing of your network, and share the configs.

Do you have a dedicated link between the data centre and the main site? If you do you could run IBGP over that.

Alex