Redundancy link setup help

[terrencepayet]

Hi guys,

Grateful if you could help me with the above subject. I want to setup redundancy between our sites via our ISP ADSL could without causing any loops, and i would like to know which technology will best suit our scenario. I've attached a network diagram for you to undertsand further. Take note that i want to use OSPF on all sites.

Thanks for your quick response.

Regards,

Terence

[Reza Sharifi]

Hi Terence,

OSPF will work fine, but you don't have equal cost links to the same destination.  For example to get to 172.16.32.0/24 from site-A, OSPF will use the backup link and for 172.16.1.0 through 172.16.5.0/24 OSPF will would use the primary link, because these are the shortest paths to get to these detonations.

HTH