On Wednesday, 11/17/2010 at 12:27 EST, Karl Kingston <karlkings...@ongov.net> wrote: > hi Folks.. > > We have a z10BC and I'm trying to get Jumbo Frames to work. > > I set the MTU in Linux to 8992. BUT when I transfer, I'm only seeing 20MB/s? > > Even if it's between 2 servers on the same box and subnet? > > Did I misconfigure something?
Jumbo frames are supported on all 1Gb, 10Gb, and 1000Base-T OSAs. However, the switch must be configured to support jumbo frames. Also, a guest's ability to use an OSA is limited by the guest's access to the CPU. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 alan_altm...@us.ibm.com IBM Endicott
