What is MTU size set in case of 1GB NIC Card. Balanand Pinni SBC Services Inc. Work:314-206-5911 Pager:1-800-451-6897 Email ID :[EMAIL PROTECTED] [EMAIL PROTECTED] e.mail pager
-----Original Message----- From: Tom Melton [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 23, 2002 1:33 PM To: [EMAIL PROTECTED] Subject: Re: Gigabit Ethernet Performance Thomas, I tried two FTPs, one to the machine itself, then to another machine, using 100MB cards... Here is my output.. machine out/in to same machine ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null 200 PORT command successful. 150 Opening data connection for /dev/null. 10000+0 records in. 10000+0 records out. 226 Transfer complete. 327680000 bytes sent in 11.05 seconds (2.897e+04 Kbytes/s) local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null ftp> quit machine out/in to different machine 100MB card same ethernet switch ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null 200 PORT command successful. 150 Opening data connection for /dev/null. 10000+0 records in. 10000+0 records out. 226 Transfer complete. 327680000 bytes sent in 27.84 seconds (1.149e+04 Kbytes/s) local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null So those numbers you mentioned seem low to me. Tom Melton Emory HealthCare >>> [EMAIL PROTECTED] 07/23/02 12:50PM >>> Hi TSM-ers, our newly installed Gigabit Ethernet seems to have some performance problems. When I do the following FTP command between two UNIX (AIX) machines I only get about 8Megabyte per second. # ftp 10.135.11.55 Name: adminrt Password: ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null 200 PORT command successful. 150 Opening data connection for /dev/null. 10000+0 records in. 10000+0 records out. 226 Transfer complete. 327680000 bytes sent in 39.5 seconds (8102 Kbytes/s) local: |dd if=/dev/zero bs=32k count=10000 remote: /dev/null This command transfers data from nowhere to nowhere so no disk is involved. The performance numbers only include network, network adapter, TCP/IP and a bit of UNIX. Do you think 8MB/s is OK for Gigabit Ethernet? Would anyone be so kind and test this command in their own UNIX environment and tell me the numbers? Thanks in advance and greetings from Austria Thomas Rupp Vorarlberger Illwerke AG MAIL: [EMAIL PROTECTED] TEL: ++43/5574/4991-251 FAX: ++43/5574/4991-820-8251 ---------------------------------------------------------------------------- -------------- Dieses eMail wurde auf Viren geprueft. Vorarlberger Illwerke AG ---------------------------------------------------------------------------- -------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ CONFIDENTIALITY NOTICE: This message may contain legally confidential and privileged information and is intended only for the named recipient(s). No one else is authorized to read, disseminate, distribute, copy, or otherwise disclose the contents of this message. If you have received this message in error, please notify the sender immediately by e-mail or telephone and delete the message in its entirety. Thank you. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <<<<GWIASIG 0.06c>>>>
