David Kruse, Pricipal Development Lead, presented a discussion of Windows 7 and Windows 2008 R2 updates to the MS-SMB2 protocol document including the 2.1 dialect at the 2009 File Sharing Windows Protocols Plugfest and answered questions as well. MS-SMB2 protocol document updates are to be delivered in an upcoming Windows Protocol Document release.
As noted in the presentation, the following registry setting is available in Windows 7 and Windows Server 2008 R2 for SMB2.1.
- Registry setting for large MTU HKLM\System\CurrentControlSet\Services\Lanmanworkstation\Parameters
DisableLargeMtu = 0 [DWORD]