OSPF/SPEEDFUSION Questions

Hi.

We have some questions about how the scenario below works. I will describe it below and ask you to validate my understanding, please.

In this scenario, we put the Cisco router in the branch office for hardware redundancy issues considering the lowest cost of the project.

NORMAL FUNCTIONING

OSPF Neighborhood established between the headquarters BPL, branch BPL and Cisco router.

VRRP established between branch BPL and Cisco router.

Traffic leaves the site through the VRRP IP address (192.168.1.1) which forwards the packets to the BPL-ONE CORE (192.168.1.2) and goes to the headquarters, as it received the route 192.168.0.0/24 via SPEEDFUSION and/or OSPF.

Traffic returns to the branch through the BPL-210 cluster, as it received the 192.168.1.0/24 route through SPEEDFUSION and/or OSPF.

FAILURE OF TWO WAN LINKS IN BRANCH BPL

VRRP converges directing all traffic to the Cisco router that has become VRRP active. The traffic goes out over the IPSec VPN between the branch office and the headquarters, as the routes were exchanged using the OSPF protocol.

Traffic returns to the branch via the IPSec VPN due to the OSPF neighborhood.

FAILURE ON BRANCH BPL

VRRP converges directing all traffic to the Cisco router that has become VRRP active. The traffic goes out over the IPSec VPN between the branch office and the headquarters, as the routes were exchanged using the OSPF protocol.

Traffic returns to the branch via the IPSec VPN due to the OSPF neighborhood.

QUESTIONS

What is the average time for VRRP and OSPF convergence considering the standard times of both protocols?

Is it possible to establish the OSPF neighborhood in BPL from inside an IPSec and SPEEDFUSION VPN?

Is it possible to have the functionality and routing we need working with static routes by removing OSPF?

Best regards