We have two cisco routers(3845 and 2851 with 12.4(9)T7 IOS) in different locations. Both routers are connected with MPLS link.
When we use WIC 2T card in routers, line protocol goes UP, But When we use HWIC 4T card in routers, Line protocol goes DOWN.There is condition that we have to use HWIC 4T card in project.
Kindly tell me, what is problem? how can we resolve?