Frank, I would make sure that your MTU size and TCP/IP buffersizes are the same on both sides of the connection. The defaults for the two operating systems are different, so if you don't specify them, you will likely experience problems.
Mark Post -----Original Message----- From: Frank Schwede, LSY [mailto:[EMAIL PROTECTED]] Sent: Tuesday, April 02, 2002 6:44 AM To: [EMAIL PROTECTED] Subject: vCTC Connection RH7.1 64bit Linux to zVM4.2 (RX/TX handshake erro r) Hello! I succeed in couple CTC pairs in zVM, but in the booted Linux I get "Error during RX init handshake" Where I am wrong? Whats with that handshake error? I did it like that (configs/profiles at bottom of mail)... login with li1000: LOGON LI1000 02: z/VM Version 4 Release 2.0, Service Level 0101 (64-bit), 02: built on IBM Virtualization Technology 02: There is no logmsg data 02: FILES: NO RDR, NO PRT, NO PUN 02: RECONNECTED AT 12:31:12 EST TUESDAY 04/02/02 > i cms z/VM V4.2.0 2002-01-29 09:09 DMSVML2060I TCPMAINT 592 linked as 0120 file mode Z 02: CTCA 1000 COUPLED TO VMIP 1001 02: CTCA 1001 COUPLED TO VMIP 1000 Ready; T=0.01/0.01 12:31:33 then "IPL 946C" after IPL and logon to Linux and: [root@linuxgigaxa root]# insmod ctc insmod ctc Using /lib/modules/2.4.7-0.24.23tape/kernel/drivers/s390/net/ctc.o [root@linuxgigaxa root]# [root@linuxgigaxa root]# ifconfig ctc0 57.20.91.169 ifconfig ctc0 57.20.91.169 ctc0: Error during TX init handshake ctc0: Error during RX init handshake [root@linuxgigaxa root]# after a while (2 min?): [root@linuxgigaxa root]# CTCA 1001 DROPPED BY VMIP 1000 CTCA 1000 DROPPED BY VMIP 1001 ...and the VMIP guest is dropped from zVM. I have to "halt" linux li1000, "disc" li1000 , login with AUTOLOG1 to get VMIP up again, and login with li1000 again to get the CTC coupled again... Configurations... **TCPMAINT:Profile.tcpip** DEVICE LI1000 CTC 1000 LINK ZVMVC1000 CTC 0 LI1000 HOME 57.20.91.170 ZVMVC1000 GATEWAY 57.20.91.169 = ZVMVC1000 1492 HOST **MAINT:User.direct:** USER VMIP VMIP 32M 128M ABG INCLUDE TCPCMSU OPTION QUICKDSP SVMSTAT MAXCONN 1024 DIAG98 APPLMON SHARE RELATIVE 3000 IUCV ALLOW IUCV ANY PRIORITY IUCV *CCS PRIORITY MSGLIMIT 255 SPECIAL 1000 CTCA LI1000 SPECIAL 1001 CTCA LI1000 LINK TCPMAINT 592 592 RR * TCPIP tools disk MDISK 191 3390 0096 001 420W02 MR READ WRITE MULTIPLE USER Li1000 Li1000 256M 512M G MACHINE esa ACCOUNT 1234 CPU 00 VECTOR CPU 02 NOVECTOR BASE IPL CMS PARM AUTOCR IUCV ANY IUCV ALLOW CONSOLE 009 3215 SPOOL 00C 2540 READER * SPOOL 00D 2540 PUNCH A SPOOL 00E 1403 A LINK MAINT 0190 0190 RR * CMS system disk LINK MAINT 019D 019D RR * help disk LINK MAINT 019E 019E RR * Product code disk SPECIAL 1000 CTCA VMIP SPECIAL 1001 CTCA VMIP DEDICATE 92EB 92EB DEDICATE 946C 946C MDISK 191 3390 3336 001 420W01 MR READ WRITE MULTIPLE /*PROFILE Li1000*/ 'SET PF12 RETR' /*'IPL 946B'*/ 'VMFCLEAR' 'CP SET MSG ON' 'CP SET EMSG ON' 'SET IMPCP ON' 'SET RUN ON' 'CP TERM CHARDEL OFF' 'VMLINK TCPMAINT 592 ( NONAMES' 'CP SET PF10 RETR' 'CP SET RETR MAX' 'CP TERM HOLD OFF' 'CP COUPLE 1000 VMIP 1001' 'CP COUPLE 1001 VMIP 1000' > Frank Schwede > Product Manager IBM High-End System Software > > Lufthansa Systems Infratec GmbH > FRA AR / ISS (IBM System Services) > Am Weiher 24, Geb. B, Raum 7.1.18 > D 65451 Kelsterbach > > Tel +49 69 696 94878 > Fax +49 69 696 93488 > mailto:[EMAIL PROTECTED] > http://www.LHsystems.com > >
