Jay, A CTC is used to connect Linux to TCP/IP on VM. Since that's the only way I can gain access (Telnet) to the Linux server via TCP/IP, I'm as sure as I can be that the CTC driver -is- loaded. I'm also certain that the named file and directories do not exist.
linux016:~ # lsmod Module Size Used by ctc 21220 1 (autoclean) linux016:~ # cd /proc linux016:/proc # cd net linux016:/proc/net # ls . dev igmp ip_mr_cache netstat rpc sockstat udp .. dev_mcast ip_fwchains ip_mr_vif raw rt_cache tcp unix arp dev_stat ip_fwnames netlink route snmp tr_rif linux016:/proc/net # I'll mention that I'm at the 2.2.16 level of SuSE 7.0 GA. Are you seeing different results with your system? If so, what distribution are you using? I personally haven't yet worked with the 2.4 kernel and if the CTC driver works differently at that level, I'd like to hear that. I'll mention again that the quote from the manual was for the 2.2.16 level of code. Again, perhaps, we've missed some service? Thanks for your comments. The more I check the more I learn about all this stuff! ;-) -----Original Message----- From: Robert J Brenneman [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 14, 2002 3:34 PM To: [EMAIL PROTECTED] Subject: Re: Buffersize on Linux CTC Driver The file is not there because the driver is not yet loaded. You have to load the driver first before you can change the buffersize. All the appropriate /proc stuff gets created after the driver loads. Jay Brenneman "Scully, William" <WILLIAM.SCULLY@c To: [EMAIL PROTECTED] a.com> cc: Sent by: Linux on Subject: Buffersize on Linux CTC Driver 390 Port <[EMAIL PROTECTED] IST.EDU> 02/14/02 02:26 PM Please respond to Linux on 390 Port The IBM "Linux for S/390 Device Drivers and Installation Commands" document, dated 18 July 2001, in Chapter Seven, "Linux for S/390 CTC/ESCON Device Driver", has Usage Note 2 under "Preparing the Connection" which reads: Definitions on the remote side Set up the TCP/IP on the remote side, as described in the reference manuals. This will vary depending on which operating system is used on the remote side. Note: It is important that you have IOBUFFERSIZE 32678 defined because the LINUX for S/390 CTC driver works with 32k internally. This is configurable for each device by writing the value to the buffersize file for that device (proc/net/ctc/<devicename>/buffersize ), for example echo 32768 >/proc/net/ctc/ctc0/buffersize I'm not sure how this is accomplished. Logging on as root and issuing the command doesn't work. Here's what I get: LINUXWPS:/proc # echo 32768 >/proc/net/ctc/ctc0/buffersize bash: /proc/net/ctc/ctc0/buffersize: No such file or directory What is the correct technique for creating the appropriate directories and file? William P. Scully Systems Programmer Computer Associates International, Inc [EMAIL PROTECTED]
