TCP Chimney Offload / Checksum Offload

Andres Bohren

2010-04-13

Hallo zusammen,

Kürzlich hatte ich ein Problem mit einem NLB Cluster, welcher ab und zu nicht mehr erreichbar war. Glücklicherweise habe ich gerade ein paar Tage davor einen Blog Artikel von Microsoft Customer Service and Support (CSS) SQL Support dazu gelesen.

TCP Offload ausschalten - entweder über den NIC Driver...

...oder übers Betriebsystem.

netsh int tcp set global chimney=disabled

Links:

http://blogs.msdn.com/psssql/archive/2010/02/21/tcp-offloading-again.aspx
http://support.microsoft.com/kb/951037/en-us
http://support.microsoft.com/kb/948496/en-us

Grüsse

Andres Bohren

Andres works as a Senior Microsoft Cloud Engineer/Architect for midsize to large Enterprises at isolutions in Switzerland. He has a special focus on M365 including Identity, Messaging, Communication, Security and PowerShell but also some Azure Technologies. He is Co-Organisator of the Microsoft 365 Community Schweiz Meetup group and was Speaker at several other Meetups or Conferences. He likes good Food, his Bike and nice Dive spots all over the World.