Hi All,
I am new to the community and posting for the first time. I am currently having an issue in our company network where remote sites traffic coming to head office and then flowing via gig link to our data center instead of going straight to Data center via ISP core.
I will try to explain in detail. Here is the scenario
Site A - Head office (10.60.1.0)
Site B - Data Center(10.60.2.0)
Site C - Remote Site(10.60.3.0)
OSPF setup between our Cisco 3750 stack and ISP router at all three sites.
Two WAN circuits(Primary and Secondary) terminating at Head office and Data Center to provide connectivity. Remote site connects to ISP core and use to route traffic for network - 10.60.2.0 straight via ISP core until we provisioned another layer 2(1GB) link between Site A and Site B.
We provisioned this circuit for traffic between heads office and data center. This link terminates straight on our Layer 3 3750 switch on both ends.
OSPF was setup to advertise routes between those site by our nework support provider.
ISP saying that our OSPF pushing this as the best path to their BGP network hence traffic flowing via Head office.
I believe it's due to cost on OSPF but unable to figure out on where the issue is.
Any help or ideas would be much appreciated.
Thanks everybody
