desswood

We have a domain (all windows 2003 server SP1) connected across a site-site vpn using ISA 2004 on a DC at each end. This is the top level tree in a forest. Each site has its own tree in the forest. Everything else appears to be working perfectly, all DCs are replicating, exchange organisation works fine across the sites. A test DFS structure is in place which works fine with small files but our trouble appears to be when trying to replicate large backup files (*.bkf) between sites (replication occurs fine between site DCs). Note: *.bkf is not on the file exclusion list We have attempted the following: a) Replication schedule on 24/7. B) Replication schedule b/n 18:00 and 08:00 (as ADSL download speed is affected on site 2, when DFS replication is on ADSL download speed decreases from a typical 1800kbps to b/n 80 & 600 kbps) Connection between sites is Site 1: 1MB ADSL (256 KB Upload) Site 2: 2MB ADSL (256 KB Upload) Site 2 has the source files and is trying to replicate to site 1. Questions are as follows: 1) Does DFS using FRS struggle with file sizes of b/n 1GB and 3GB? 2) Does DFS sing FRS restart file replication when using scheduled times rather than 24/7? 2) Why does site 2's download speed drop so significantly if it can only upload at 256 kbps. Anyones thoughts would be deeply appreciated? My thanks in advance Dave.