Any recommendation/solution is appreciated. I can't share running config but i will provide any information which may be needed. I have attached similar network diagram  I am having 2 sites with dual switch stack of 3850 at each site. Site A and Site...

We have 2 sites(Site DL1 and DL2)  and each site has 3850 switches (2 switch stack). DL1 and DL2 have different separate network. but there is a requirement that DL1 should be able to access a new network (10.98.x.x) that is connected to DL2.  DL1 a...