We have a MPLS VPN infra as given hereThe problem is no .xls file can be transferred from Site-1 to Data Center either through FTP or as e-mail attachment . But the reverse is possible.This is not a prob lem for Site-2,3 4 & 5Any clue ?Image deleted ...

We have a campus-wide infrstructure with single-mode OFC and Layer-3 and Layer-2 switches from different vendor. We want to repalce Layer-3 first while continuing with the Layer-2 switches. We have finalised Catalyst 3750 as Layer-3. But that comes w...