Even if you're actually using 8192 for your MTU size, you're taking a performance hit. Bump that up even higher to 32K.
Mark Post -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of James Melin Sent: Wednesday, November 16, 2005 12:22 PM To: LINUX-390@VM.MARIST.EDU Subject: z/OS tcp/ip stack definitions for hipersocket The results of a netstat on z/os showed me that while the actMtu is 8192 while under BSD Routing Parameters it shows an MTU Size of 00576. Question: Does this mean z/OS tcp/ip is breaking 8 K packets into 576 byte units each with its own header? Shouldn't the MTU size under BSD Routing Parameters be higher? I am doing point to point data connections via hipersockets to talk to DB2 on z/OS, so there should be no routing going on. I'm just trying to figure out if this adversely impacts my hipersocket performance. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
