Networking :: Gigabit Switch Causing Network To Freeze?

Dec 30, 2010

We have an old Zonet 10/100 switch in our home network that locks up whenever there's a power glitch longer than about a microsecond. (OK. It's not that bad but if the lights flicker, I usually end up going down to the basement to see if the switch is hung.) None of the computers or peripherals are affected by the glitches, BTW. Power-cycle the switch and everything starts working again. After putting up with this for months I finally picked up a Netgear 8-port 10/100/1000 switch to replace the Zonet. Unfortunately, when the Netgear switch is in the network, everything slows to a crawl before completely freezing up. Pinging other systems barely worksname would not work.Pinging another system by its IP address worked a little but packet losses of 70%-80% were the best I saw. At first. Then it gets to where the loss is 100%.

All systems were rebooted after the Netgear switch was inserted into the network. The systems that were capable of gigabit connections autosensed the new switch and set their port speed accordingly. And that's about all that works when the Netgear switch is present. (The Zonet is back in the network now.)One thing I have not tried is forcing the port speed on the gigabit-capable systems to 100Mb and re-inserting the Netgear switch into the network to see if the problem if due to running some of the ports at 1000Mb.The systems on the network are running various versions of Linux (with different kernel versions, of course). Most are due for upgrades to get them current but I was planning on hitting the systems that had gigabit-capable ethernet interfaces thinking that a.) 100Mb speeds have been around forever and no problems have been seen when everything was running at 100Mb in the past and b.) the gigabit support for the older kernels should be better (one system only supports an MTA of 1500 max at 1000Mb).

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OpenSUSE Network :: Networkmanager Causing Freeze On Resume?

Jul 23, 2011

i've been able to narrow down a freezing issue on my laptop, down to NetworkManager when i have a cifs share mounted in fstab.removing the cifs mount, or using 'ifup' method appears to fix the issue.the problem is when my laptop resumes from sleep, and when using NetworkManager with cifs share, then i get a 20second freeze when using the launcher while the network sorts itself out. this happens on either wifi or wired connections. this freeze only occurs when using the Launcher for the first time after resume. if i dont use the launcher then everything is fine untill i do (ie: i have network access and desktop shortcuts work fine)

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Ubuntu Networking :: No Speed Improvement With Gigabit NIC / Switch?

Jan 13, 2010

I recently upgraded a server's networking card to a Gigabit NIC, and got a hold of a Gigabit switch (Here's a link) in the hopes of increasing my network performance - however, I'm getting around 10 MB/s throughput now, which is exactly what I used to get with the old 10/100 switch & NIC. The new switch recognizes both computers as Gigabit (the other machine has always had a Gigabit NIC), and both computers say they're gigabit - I've found various sites around the interwebz recommending tweaking some TCP/IP buffer settings, which I have tried to no avail. I also saw that hard drive speed is usually the limiting factor. According to "hdmarp -t", the server HDD (definitely the slower of the two) is:

Code:
Timing buffered disk reads: 226 MB in 3.00 seconds = 75.26 MB/sec

So that's obviously not my issue. The cabling is CAT6 - I ran it myself, but if I'd mis-wired the end connections, wouldn't it just not work at all? I admit, I bought cheap NIC's (I'm not going for like 124.9 MB/s throughput here..), and I didn't expect them to be stellar, but I certainly expected the speeds to improve. I'm moving files from a server running Ubuntu 9.04 to a Windows machine - I've tried both my Samba shares on the server and an SFTP transfer: they both have about the same throughput.

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Ubuntu Networking :: 10.04 RTL8192SU Driver Causing Boot /freeze Ups?

Jul 10, 2010

So I have recently been making attempts at setting up my RTL8192SU chipset usb wifi. After struggling to set it up by following the steps on this link: [URL]../url?sa=t&jUyXQukrfIw After doing this I had no idea what it was supposed to look like but It did display several warnings along the lines of "warning: cast from pointer to integer of different size" I continued following steps as another error occurred "cp cannot stat autoconf.rtl8712_usb_linux.h" I then entered sudo modprobe 8712u and my screen went black i was forced shut down . Upon rebooting I found it also would lock up if my usb device was plugged in It will boot with it unplugged but as soon as it is plugged in again it will lock up my system and send it to a black screen.

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General :: Tar Is Causing A Complete Freeze?

Jun 13, 2010

I have a very simple bash script that just runs a series of backups using tar; for example, one of the lines reads:tar -czvpf /srv/backups/backup_home.tar.gz /homeThis script is scheduled to run every Friday, but occasionally I will schedule it to run before using 'at'. The script is located on the same disk as the backups are saved, I then transfer them off the machine manually (I've yet to automate this). I am only compressing files that are located on the server's disk, no files are being transferred over the network at all.

The problem is, occasionally it appears to be causing the 'server' I have running all the time to completely freeze. When this happens the machine does not power down and there are no entries in the log that indicate a problem. Everything simply stops until I press the reset button. Note that this issue also happens when you run the script manually and not just when it is run via cron or at.I *think* this might be happening when a large file is being compressed, but I'm not certain.

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Networking :: Gigabit Network Card For CentOS 5.4 Server

Feb 11, 2010

I am looking for a gigabit network card for my centos 5.4 server. I am looking for something known to work well with linux. I have been on the bestbuy site and I found a DLink (DGE-530T) card with support for linux from the vendor but after reading feedback from users with that card I am not so sure it is linux friendly. I am now thinking of buying online.

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Debian :: Total System Freeze / What Is Causing It?

Jun 16, 2011

I'm experiencing constant system freezes, and was wondering which log file to view in order to determine what is causing it. I switched over from linux mint as it was giving me the same issues now being experience on my debian setup.

When my system does freeze, the keyboard is unresponsive (caps lock won't even turn on) and I have to use the power button to get out of it. The only thing that does work is my wireless mouse which I can still move around.

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CentOS 5 Networking :: On Board Network Card Refuses To Run Gigabit?

Jun 30, 2009

I've just set up a PC with CentOS 5.3 runing on near identical hardware to an existing 5.2 machine. Motherboard is Asus M2A-VM which I discover by chance generally works very well with CentOS. Ethernet is on board Nvidia.The older machine just did run gigabit speed without any intervention at all, rather to my surprise. The newer machine insists on running at 100 Mbit which is annoying as it is connected to a NAS through a gigabit dumb switch.

The obvious difference between the two is that ethtool on the older machine says that supported ports are TP, and so the port is TP. Whereas the newer machine says that supported ports are TP or MII and insists on running MII. I cannot change this with ethtool -s eth0 port tp. Perhaps not too surprisingly, mii-tool says that the supported speeds range up to 100 Mbit.

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OpenSUSE :: Mplayer Plugin Causing Firefox To Freeze?

Mar 12, 2011

I've been having trouble lately with firefox freezing. For awhile I couldn't figure out what was causing it as it seemed random. But I think I narrowed down the problem to the mplayer plugin. Whenever I go to a site that has streaming video, the mplayer plugin would start reading the stream, but then display "stopped". Now sometimes when it does this firefox would freeze, but sometimes it wouldn't freeze till I start mousing over my bookmark tabs, then it would freeze my entire desktop. I can move my mouse but not much else. I can do a ctrl-alt-backspace to reload the xserver. Has anyone else noticed this? Also, can some help me troubleshoot this. I've removed and then re-installed firefox and the myplayer plugin; deleted my .mozilla directory; changed profiles. Is there anything else I can do?

Here are the package details:

Code:

Repository: @System
Name: MozillaFirefox
Version: 3.6.15-0.2.2
Arch: x86_64

[code]....

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Debian Multimedia :: Multiple Monitors On Laptop Causing System Freeze?

Mar 18, 2010

I'm having some trouble hooking my external flatscreen monitor up to my Toshiba Tecra's docking station and having Mint (or Debian) be happy with it. The laptop uses a widescreen monitor but my external is a 4x3; I wonder if this is causing problems. Of course, it may just be the Intel 82801G graphics adapter.et things up properly in the Display Preferences config window (I'm using Gnome, btw) but when I hit apply, the system locks and I have to hard boot. I've never set up a linux box with multiple monitors before, let alone multiple monitors that require different resolutions.

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Debian Hardware :: Linux Non-free ATI Driver Causing Login Freeze

Oct 22, 2015

Whilst watching my system boot I see the following error:

'drm: radeon pci probe error kernel requires firmware non-free'.

When I install the ATI graphics driver, sure - I get all the screen resolutions I could possibly want, but the cost appears to be that it makes it causes my system to freeze at the user name and password screen. Sometimes the cursor blinks teasingly, but nothing appears as I type; sometimes the cursor itself is frozen.

My question isn't about the myriad of theoretical key combinations that might work - none of them have thus far.

I'm wondering whether I can simply continue using the default driver that the debian installer (ver. 8 stable 'Jessie') installed on my system. It's true that I only get 3 choices of screen resolution - 1152x864, 1024x768, and 800x600 - but my system seems so much more stable than when I install the proprietary ATI driver.

Aside from the login screen freezing - more often than not, strange things were happening keyboard wise - especially when composing posts for forums - the cursor would suddenly jump to another line of previously composed text for example!

So, can I keep the default driver or is it best to install the ATI driver and attempt to troubleshoot it? Is it even possible to troubleshoot a problematic driver - I knew how to do such things in Windows, but still learning about linux.

Also, when my system freezes at login (for whatever reason), if I'm obliged to simply hit the laptop power button to power down and press it again to restart - is this potentially damaging/corrupting my system - Debian, or indeed my hard drive?

Going forward, is the ATI driver issue likely be addressed in future Debian releases? Obviously, I would prefer to have the proper driver installed so as to have more screen resolution options - since I will be using my laptop for developing and testing web sites.

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OpenSUSE Hardware :: Radeon Drivers Causing XOrg Freeze With 3D Graphics?

Dec 31, 2009

I'm having a few problems with XOrg freezing while playing World of Goo (not the worlds most intense game for graphics, but seemingly too much for my rig). I initially posted on the developer's forums, but they said a full X freeze wouldn't be the game. Testing with BZFlag got me a full Xorg freeze even quicker than with WoG. Later I even tried glxgears to see how well it ran and even that froze the system! My only way of recovering is SysReq-REISUB.

Specs/system details:

2.4GHz Core 2 Duo (E6600)
2GB RAM
Radeon X1950XTX using the open source drivers
openSUSE 11.2 (64-bit - patched up to date and without an xorg.conf)

[code].....

So, is there a fix for the huge instability with 3D graphics, or am I stuck between a rock and a hard place with the options of outdated official drivers that may not work with the latest kernels (and would need manually rebuilding even if they did) or flakey open drivers that are guaranteed to freeze at some point, it is just a matter of when?

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Ubuntu Networking :: 10.10 Freeze On Network Connect

Jan 17, 2011

Every time I connect to the internet via pppoe the OS freezes. Note that fedora 14 does the exact same thing, freeze on network connect. Both are are x64 variants and the pppoe connection worked fine on live bootup.

On the other hand Windows 7 boots and uses the connection just fine.

NIC - TP-LINK TF-3200 10/100 Fast Ethernet Adapter on a PCI port.

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Fedora :: Switch Between Users Cause System Freeze Up

Mar 17, 2010

I just get upgraded from F10 to F12. I am having problem with switching between users. The system would freeze up and the mouse would move unresponsively, could not restart system with Ctrl-Alt Del. When it freeze up, it doesn't give error anyway on next start.I suspect the problem is doing with Web browser, If one user using browser and switch to other user without logoff, it will freeze up when other using login.It seem working on following contion.

1. It seems ok when all users quit using browser,and it doesn't matter how many times you switch between users.

2. delete all other users and operate as only one user

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Ubuntu Networking :: Freeze On Network Cable Plugging-in HP Mini 5101?

May 2, 2011

Since I upgraded to Ubuntu 11.04 my system freezes when I plugging-in an ethernet cable.My network devices:

Code:
#sudo lshw -C network
*-network

[code]....

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Ubuntu :: Gigabit Network Connection Stuck At 100 Mb/s?

Aug 12, 2011

I have a machine with an MSI motherboard and gigabit ethernet. However, it only reports being connected at 100Mb/s. I have tried using ethtool to force the speed to gigabit but it doesn't seem to have any effect. I'm using Ubuntu 11.04. Does anyone know a way other than ethtool to set the network speed?

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Ubuntu Networking :: 1 Switch For 2 Wireless Network Adapters

Oct 13, 2010

I am using 2 wireless network adaptors,one intel 5300 AGN (driver iwlagn)and the other one smc ezconnect ( driver zd1211rw), a usb adaptor The intel 5300 AGN has a hardware switch.

However, everytime i turn off the hardware switch of intel 5300 AGN, the smc ezconnect adaptor is turned off too. How to I prevent this(how to make 2 switch for 2 adaptors?)

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Networking :: Layer 2 Switch - VLAN Router To Network

May 15, 2009

Our ISP provides us with Layer 2 hardware (Modem?/Switch? (Hatteras)) for our leased line and internet access. I have been told that I should set up a VLAN capable router to separate the internet traffic from the internal traffic. I found that linux is capable of VLAN routing. Nice!

I have setup opensuse 10.3 put in two NICs and did the following
vconfig add eth0 10
vconfig add eth0 20
ifconfig public.ip.add.ress netmask 255.255.255.252 eth0.10 up
ifconfig 192.168.0.1 netmask 255.255.255.0 eth0.20 up

Plugged this NIC into the HATTERAS hardware (with a straight cable), and thought that this way I should be able to ping the public gateway or any ip out on the internet. My ISP is telling me that I should create a VLAN trunk to be able to 'use the internet', but as I understand in linux if I create any number of VLANs on one NIC they are already trunked. I also got the info, that the traffic is tagged, and I can separate the traffic reading the tags. I already read that some NICs are not able to VLAN because they are not able to handle the increased packet size.

Also that the MTU setting is important (dono' the exact value though, only that its important). I thought that a linux machine can act as a router and firewall in such a case, because proprietary switches/routers use linux as embedded os. This is my first meeting with VLAN so if this whole post does not make any sense or you think that I just need to RTFM more then tell me! I also have some (3) Dlink 3226 Layer2 switches around, but I think it would be waste to use a 24 port switch on this subject.

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CentOS 5 Networking :: Script For Switch The Network Gateways

May 11, 2010

I installed the CentOS v5.4 on a virtual machine vmware server v1.0. I put the the vmware ethernet on bridged mode and now I have an ip address, subnet mask and dns from my dhcp server from the the office where I am. I edit the file /etc/sysconfig/network and I put there the gateway ip. Now is okay but not at my home where I have another gateway ip. a script who switch between my gateways ?

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Slackware :: No Network - Intel Corporation 82567LM Gigabit?

Mar 3, 2011

Just did a clean install on a Dell Latitude E6400 of Slackware 13.1 and, for the most part, all is working great. Got wicd installed and wireless came right up, nvidia drivers installed and video is fantastic, but for some reason my wired connection isn't happening. The device is detected, but I can't get an IP.

Code:
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)

[Code]...

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Ubuntu Networking :: When Switch Rebooted Network Connection Lost?

Apr 19, 2010

When there is a power failure at my university for about 30 minute, my computer stays up because of a UPS, but the switch it is connected to via ethernet is reset. After this, my machine loses network connectivity until I manually select the network using nm-applet.

In System -> Preferences -> Network Connections, the network has the "Connect automatically" box checked.

However, in /etc/NetworkManager/nm-system-settings.conf, there is a line that says:

Code:
no-auto-default=00:30:48:b0:11:07,
and that is the MAC address of the ethernet card.

I'm running Ubuntu jaunty.

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Ubuntu Networking :: No Network Icon In Panel - Switch Users

Nov 8, 2010

Have a strange problem with the network icon on my laptop.

I have two users (me & my wife). We often log in and use switch users so we're both logged in at the same time.

Whoever logs in first will get the network manager icon in the top panel, and whoever logs in second won't get the icon.

The second user does get a message (growl notification?) saying the wireless network <whatever> is now connected & it is indeed connected.

It's a bit annoying, as if I log in second, I can't chnage my wireless network to the other one we have, I'm stuck using whichever one my wife selected.

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Fedora Hardware :: Broadcom 57780 Gigabit Network Card

Mar 16, 2011

I have been trawling the web looking to see how to get my broadcom nic working on my Dell optiplex 380 with fedora 12. Basically it shows up when I run lspci but no where else, unfortunately I have no linux experience. Other things that I have tried were to check the blacklist driver file, which had no reference to the nic.

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Hardware :: Intel 82574L Mobo Gigabit Network Card

Sep 10, 2010

NIC: Intel 82574L Gigabit mobo network card
Issue: After the server has been up for a random amount of time, the network connection is lost. Attaching a console and looking at ifconfig I see a large number of dropped packets and collisions.

use;
Code:
lspci -vxx
to list the make manufacture of NIC and the device driver it is using.

In this case: Intel 82574L, e1000e
Look in var/log/messages to get the version of the driver, in this case 1.0.2
Download .gz file with source code, follow instructions to install newest driver (e1000e.ko), in my case version 1.2.10. [URL]

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Fedora Installation :: Intel Corporation 82579V Gigabit Network Connection?

Aug 29, 2011

I installed Fedora 14 on my new PC but I don't have network connection. In fact, I hit the command "lspci" and the prompt return :

Code:
Ethernet Controller : Intel Corporation 82579V Gigabit Network Connection
So, I created a ifcfg-eth0 file on /etc/sysconfig/network-script because it doesn't exist :

Code:
DEVICE=eth0
TYPE=Ethernet
BOOTPROTO=dhcp
ONBOOT=yes

Then, I restart network service, but eth0 is down, no device found for the connection eth0.

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OpenSUSE Hardware :: 11.2 - Marvell Yukon Gigabit Ethernet Network Card 88E8072

May 12, 2010

I have a dual boot system (Suse 10.0 and Windows XP Pro) in my notebook. My notebook is toshiba m358, which has a Marvell Yukon Gigabit Ethernet Network Card (Marvell 88E8072) on it. My problem is this: in Windows XP Pro, the network card works well, but in openSUSE, the light on the network card does not turn on. I believe that there is no driver for the network card. I have tried several ways to solve this problem:

1. Download Marvell 88E8072's driver from "[URL]", whose name is "install_v10.85.3.3.tar.bz2", and then install it with following commands:

Code:
# tar xfvj install_v10.85.3.3.tar.bz2
# cd DriverInstall
# ./install.sh .....

Code:
# modprobe sk98lin
# WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
After I reboot the openSUSE, the light of network card is still off.

2. Follow "[URL]" to configure the Marvell 88E8072. It also does not work.

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Ubuntu Networking :: Not Getting Gigabit Connection

Aug 24, 2010

I'm running a wired gigabit card using the atl1c driver. It works fine, but I don't get gigabit, only 100 Mbps. I have a gigabit switch and other Ubuntu machines on my network are gigabit. Is there any way this could be a software/configuration issue, or is the only likely explanation that my wires are of sub-par quality somewhere?

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CentOS 5 Networking :: Motherboard NIC Will Not Run Gigabit

Mar 3, 2009

Using the onboard gigabit ethernet interface on an Asus M2N-CM DVI motherboard (nVidia chipset) with CentOS 5.2 the ethtool utility recognises that the NIC is capable of gigabit:

# ethtool eth0
Settings for eth0:
Supported ports: [ MII ]
Supported link modes: 10baseT/Half 10baseT/Full

[code]....

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CentOS 5 Networking :: Trying To Upgrade To Gigabit

Feb 12, 2010

I am running CentOS 5.3.The NIC on my motherboard does not support gigabit, so I bought a gigabit network card. I installed the network card and configured it via system-config-network. Everything seems to work fine as long as I keep a cable plugged into the original NIC. The original NIC works just fine if it is the only one with a network connection, but as soon as I uplug the original NIC I can no longer ping nor connect to the server via the gigabit NIC.

The original NIC is eth0, the new NIC is eth1. Is there something I need to do to tell the system that eth0 is not required or something? I've never encountered an issue like this before...

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Ubuntu Networking :: 10.04 Gigabit Lan Connection 10Mb/s?

May 11, 2010

I recently did a clean install of Ubuntu 10.04 on my machine. It previously had windows 7 on it and everything worked flawlessly. Now the gigabit LAN connection only connects at 10Mb/s under Ubuntu. I installed a virtual machine with windows 7 and there it connects at 1Gb/s.

[Code]...

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