Go CCIE Go!! - A Cisco Certified Internetwork Expert

> Hey guys I have an idea what might be going on but wanted some other > input before I opened my big mouth. This is a client/friend of mine. Any > input? Oh IP helper is loaded in the config correctly. > > This is something I have been troubleshooting for weeks. I have been > working with Cisco, first I changed the WIC card at the remote, > yesterday I changed out the entire router at the remote. The problem was > very sporadic a couple of months ago, now it is almost constant. We can > ping and FTP at full T1 speed, but when we start to load a Windows > roaming profile, or access a SQL database, or sometimes when we access > Microsoft Office documents it will grind to a halt.
Are you accessing the documents over a CIFS (Windows Filesharing) or SMB share?
If that’s the case, the problem is probably the protocol and not the pipe, CIFS can by 95% over head in most cases, and is extremely chatty. FTP, HTTP, and other sane protocols do not have this problem.
Is the T1 P2P Private Line, or does it also provide Internet bandwidth?
If it’s an Internet T1, you’re ISP might be shaping your CIFS / SMB traffic, as it is an extremely common vector for malware and virus propagation.

Regards, Max

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