very Slow FTP rate on Solaris 8

Posted on 2002-04-02
Medium Priority
Last Modified: 2013-12-21
Hello everyone, i am facing a strange problem, you see i have a Sun 420R running Solaris 8, my problem is that when i try to ftp a 20 MB file from this machine to another it takes a very long time same if its other way around, the transfer rate is about 3k imposible to work with i even tried using NFS and that too takes an extreamly long time, i have my hme0 set to 100xFull
and my switch is set to 100xfull as well, any one have any ideas or suggestions? thanks in advance.
Question by:jpfrancai
LVL 40

Accepted Solution

jlevie earned 60 total points
ID: 6914890
That behaviour is typically a result of a link speed/mode mismatch. How did you set hme0 to 100FDX? Via /etc/system? Could I see whay you used?

What switch are you connecting to and are you certain that your port is operating in 100FDX?

The other possibility is that you have a bad cable, or switch port. Have you tried other ports/cables?

Expert Comment

ID: 6915559

Make sure the IP address of both machines are in the /etc/hosts file on each machine.

Are they on the same subnet?

Use netstat -i 5 to monitor network traffic while you are in the ftp session.

You could also use 'snoop' to keep an eye on the network traffic.

Regards, Nisus

Author Comment

ID: 6918644
Yes i have tried other ports, and cables, my etc system file looks like this
set hme:hme_adv_autoneg_cap=0
set hme:hme_adv_100T4_cap=0
set hme:hme_adv_100fdx_cap=1
set hme:hme_adv_100hdx_cap=0
set hme:hme_adv_10fdx_cap=0
set hme:hme_adv_10hdx_cap=0
* Other tuning parameters
set hme:hme_ipg1=0
set hme:hme_ipg2=0
set hme:hme_lance_mode=0
set tcp:tcp_conn_hash_size=32768
set priority_paging=1
set maxpgio=25468
set slowscan=500
set ncsize=5000
set ufs_ninode=10000

thanks for the help
Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.


Expert Comment

ID: 6919221
Ar eyou're two systems in the same subnet? What is the route between the two systems (netstat -rnv).

You can always check the network setting of your system:

#ndd /dev/hme link_status
1 ( link is UP )
# ndd /dev/hme link_speed
1 ( link speed is 100Mb )
# ndd /dev/hme link_mode
0 ( link is in half duplex mode )

LVL 40

Expert Comment

ID: 6919257
Probably a silly question, but you have rebooted since changing /etc/system, right? Changes to that file only take affect at boot.

Expert Comment

ID: 6919471
It could be an invisible problem like late collisions on the wire.
Does the switch have any snmp support ?

There you should be able to see the statistics

On the sun box, use an undocumented oprion to netstat
netstat -k  it will dump every networking structure from the kernel

netstat -s gives you tcp statistics

Author Comment

ID: 6921568
Thanks for your help guys the problem was on my Cisco 4000 Switch the port was set to 100-Half duplex after set port (poort) duplex full and set port (port) speed 100
also i noticed crc's on my port afetr setting those every thing came back up OK.

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Hello fellow BSD lovers, I've created a patch process for patching openjdk6 for BSD (FreeBSD specifically), although I tried to keep all BSD versions in mind when creating my patch. Welcome to OpenJDK6 on BSD First let me start with a little …
My previous tech tip, Installing the Solaris OS From the Flash Archive On a Tape (http://www.experts-exchange.com/articles/OS/Unix/Solaris/Installing-the-Solaris-OS-From-the-Flash-Archive-on-a-Tape.html), discussed installing the Solaris Operating S…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.
Suggested Courses

597 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question