Thanks Alan, I will verify this and will open a PMR if needed! Thanks, Terry
-----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Alan Altmark Sent: Saturday, June 07, 2008 8:45 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: HiperSockets Setup On Friday, 06/06/2008 at 05:19 EDT, "Martin, Terry R. (CMS/CTR) (CTR)" <[EMAIL PROTECTED]> wrote: > I specified the MTU on the Gateway statement! > > The error was DTCPRS051E ? Line 24: Invalid Packet Size in Gateway Command: > 16384 I think the problem is that 16384 exceeds the LARGEENVELOPEPOOLSIZE, which defaults to 8K. No MTU can exceed the L-E-P-Size. Since the GATEWAY entry was then discarded, TCP/IP should have taken the default, which is 4000 for HiperSockets. >From the TCP/IP Messages and Codes book: DTCPRS051E Line line: Invalid packet size in GATEWAY command: value Explanation: You specified an invalid max_packet_size in a GATEWAY statement. The size must be a positive integer between 576 (the IPv4 minimum MTU value) and the large envelope size (specified on the LARGEENVELOPEPOOLSIZE statement). If this doesn't jive with what you witnessed, please open a PMR so that we can investigate more fully. I'm not happy with the NETSTAT output you reported. MFS was 24K, and MTU should have been 4000 - subject to documentation errors. Alan Altmark z/VM Development IBM Endicott
