Hello the community,
You can find attached the case study topology and routers configurations.
For information :
- Site routers are ISR4331
- Dc routers are ASR1001-x router
- These routers can accept by default 16 différents path to join a network and seems to make load sharing between thes path.
I have severals questions:
1- On the router R1 and R2 I can annonce the network 10.45.208.0/20 using a "network 10.45.208.0/20 area 0 and passive inerface" or "redistribute connected"
1a - What is the best practise and why ?
1b - If I use redistribut conected the router becomes an ASBR router ?
2- What is the role of the back to back links between routers ?
3- On the DC Main router interface Fa3 I have ip ospf cost 100. It mean that all the routes learned by this interface will have OSPF cost of 100.
3a - So how can be sure that it will use Site Main router to join the green network (10.1465.0.0/16) ?
3b - Same question to join the red network (10.45.208.0/20) ?
Your brains are welcoms.
Thanks in advance