similar to: Traffic going to wrong interface?

I used to be able to modify my modules.conf file so that certain NIC cards would load specific drivers. Has this changed in kernel 2.6 i.e. <snip /etc/modules.conf> alias eth0 e100 alias eth1 e1000 </snip> It used to be that I could reverse this order and eth0 would be the GigE card.

I've got a pair of identical CentOS 6.7 servers, with SuperMicro X8DTE-F motherboards, these have 2 each Intel 82574L ethernet ports. The eth0 ports are plugged in with 10' runs of brand new cat 5e cable to a Cisco Nexxus 9000 switch (provided by the data center). These servers keep coming up at 100baseT rather than gigE. I've swapped ports and cables with a different server,

Hi there, When Lustre is configured in an environment where there are multiple paths to the same destination of the same length (i.e. two paths, each one hop away), which path(s) will be used for sending and receiving data? I have my cluster configured with two OSTs with two GigE NICs in each. I am seeing identical performance metrics when I use LACP to aggregate, and when I use two separate

Hi? I have setup a samba 4 DC with mixed client environment. My problem is that the mac osx client are unable to write to a samba 4 share. I tested mac osx clients on a normal windows 7 share and it works fine I tested mac osx clients on a samba 3.5 .. share and everything works fine. As i am in a professional environment and all the windows clients are already binded to the samba 4 domain i

Yes, I get more than 30MB/s performance. The benchmark I use (NetBench) is essentially CPU bound, such that a faster processor = faster performance. With a very fast hardware config (dual 3.2GHz processors), I've been able to hit around 100MB/s. Changing the RAM or other attributes does not buy me much, it seems that processor power is the bottleneck (at least in my case). When doing your

I thought that the below email would be of interest to LARTC readers. I wasted quite a bit of time tracking down this "feature" (bug?). Any comments that shed light on this would be appreciated. In short, "tc filter" + htb + bridging works only with ip_forward off. Andrew Athan ----------------------------------------------------------------------- All: It seems that

Folks, I realize this is off topic, and if anyone can suggest a better source for the question, I'd be glad to go there. Novell SUSE's support is unresponsive, however. My problem is this: I'm running 9.3 Pro on an Intel server board that has two NIC chips built in (a 10/100 and a GigE). I've since added a Netgear GigE NIC. However, every time I reboot, the NICs assigned to

I have a beefy machine (Intel dual-quad core, 16GB memory 2 x GigE) I have loaded RHEL5.1-xen on the hardware and have created two logical systems: 4 cpus, 7.5 GB memory 1 x Gige Following RHEL guidelines, I have it set up so that eth0->xenbr0 and eth1->xenbr1 Each of the two RHEL5.1 guests uses one of the interfaces and this is verified at the switch by seeing the unique MAC addresses.

Hi folks, I'm using the latest Dovecot 1.16 with Postfix for my FreeBSD box. Since v1.1.4 (if i remember correctly), the following message is displayed whenever starting Dovecot. "Info: If you have trouble with authentication failures, enable auth_debug setting. See http://wiki.dovecot.org/WhyDoesItNotWork" Besides that, Dovecot works great but I wonder what this message is all

At 01:54 PM 1/8/2015, John R Pierce wrote: >On 1/8/2015 11:32 AM, david wrote: >>The price point of Intel's NUC unit makes it attractive to use as a >>server that doesn't have significant computational load. In my >>environment, a USB connected hard-drive could provide all the >>storage needed. I wonder if anyone has had experience with it, and can answer:

I'm considering using rsync in our data center but I'm worried about whether it will scale to the numbers and sizes we deal with. We would be moving up to a terabyte in a typical sync, consisting of about a million files. Our data mover machines are RedHat Linux Advanced Server 2.1 and all the sources and destinations are NFS mounts. The data is stored on big NFS file servers. The

Folks, I'm trying to add a network interface card to my SUSE 9.3 box, and I'm not having much luck with a US Robotics version. What manufacturer do any of you use in your machines--either 10/100MB or GigE NIC? Thanks Eric Hines There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action. --Bertrand Russell

I'm trying to maximize throughput between my Samba server and my Win2k (SP3 and 4) clients. Samba's configured to allow up to 64k packets and the server is on a GigE network (3com card, acenic driver) with SCSI UW2 drives (software RAID1 and RAID5 volumes). All clients are 100MB/sec FDX on a switched LAN. I can get sustained 35MB/sec transfers (read and write) on the disk subsystem

Hello, I was wondering if anyone has succeeded in getting the Java bindings to work with NetBeans, in order to make use of NetBeans's GUI developer. I've had no luck so far, does anyone know how to do that? Many thanks.

Hi everyone. Has anyone experienced rsync 2.6.0 causing huge amounts of system load? Especially on Linux 2.4? We recently upgraded our "push" machine to rsync 2.6.0 and the next push that went out (rsyncing about 3GB of data to 15 servers sequentially over gigabit ethernet) caused the box to hit 110.59. We only know the load because snmpd was still working, but nothing else in userspace

i all I use linux as GiGE router and have 6 NIC on it Those days the NIC interrupt takes around 100% CPU but the system is 4G memroy and 8 CPU. I can't see any error packet in this NIC interface too After I block the udp, the %CPU drops. but the UDP only takes around 8M in general We use UDP traffic for voice. Do you have any suggestion ? increase the kernel parameter? Thank you so much

Hello, Working a few servers that are transferring data across country with a 75ms delay on a GIGE connection. We can tune the tcp buffers on linux to improve the connections using iperf. Does rsync use the tcp buffers of the OS or does it override these settings? Thanks, Neal -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I have problem with a Centos 5.3 computer. The networking is very slow. The networking card is a RealTek 1GigE. I plugged an Ubuntu laptop on the same cable and port with an Intel GigE, and it's about 8 to 10 times faster. So the problem is likely to be with the CentOS config. Any suggestion on how to track down the problem with speed. I have checked the packets with wireshark, no

Hello list, I discover strange behaviour of shaping traffic that i setup from Shorewall-4.0.2. I know that this is not Shorewall problem but may be somebody from list can help me or explain this situation. I have follow interfaces in 'tcdevices' files: #INTERFACE IN-BANDWITH OUT-BANDWIDTH # $EXT_IF 500kbit 248kbit $INT1_IF 500mbit

I have a Linux Server (3.06 Xeon) with a very fast RAID array -- reads at around 500 MB/sec as clocked by Bonnie++. I have 6 GigE nics on my machine -- on two 133Mhz PCI-x bus segments (not on the same bus as the RAID drives) I have noticed two puzzling things and I'm wondering if anybody has any ideas about why I'm seeing these: 1) transfer speeds over a single NIC from a single