similar to: Rsync not able to transfer over jumbo frames?

After successfully getting higher MTU to work on my Realtek NICs, I started testing the impact of higher MTU on file transfers using NFS exported ramdisk to ramdisk. The results were unexpected. The higher the MTU on the sending NIC, the lower the file transfer speed. I tested by using time cp to copy a 1GB file (In case compression might affect the results, so I dd the test file from the CentOS

Hi, Has anyone using CentOS 6 been able to successfully set an mtu larger than 9710 on an interface. I am seeing super jumbo frames with length > 10000. ... IP 10.79.4.53.64327 > 10.79.2.53.24294: Flags [.], seq 16060:29200, ack 1, win 32767, length 13140 ... CentOS release 6.7 (Final) Thanks, -- Stephen Clark *NetWolves Managed Services, LLC.* Director of Technology Phone:

We are utilizing the xen hypervisor on nexenta with ISCSI as our method of communication with the guests (currently ubuntu but could be moving to centos). Obviously jumbo packet support would be nice to have. The last time I see that on the xen roadmap http://wiki.xensource.com/xenwiki/XenRoadMap . Is there a canonical place that spells out if jumbo frames are now supported or still on the

On the network theme again. The adapters on the management/storage network all default to an mtu of 1500. Are there plans to be able to indicate when a network supports jumbo frames? Cheers, Justin.

Hi, I have an XCP 0.5 box running a few DomUs some of the DomU''s data is stored at (clustered lvm volumes on) a Coraid etherdrive box which is connected via an Ethernet cable to a dedicated card of the XCP box, for which in the network config I'' ve specified: MTU=9344: xe network-param-list uuid=.... gives: MTU ( RW): 9344 on the DomUs if I leave the MTU at 1500 (default

The documentation says the bridge will work as far as all interfaces have the same MTU, but I also read on this and other mailing lists people having problems when using jumbo frames. What is the current status of jumbo frames support in the bridge? It could also be useful to have the same info on the wiki page. Thanks. -- Luca Lesinigo -------------- next part -------------- An HTML

When using OCFS2 in a Oracle RAC set, one would configure OCFS2 to use the private interconnect address ( in cluster.conf). Are there any known issues / reasons not to have the private interconnect set up for jumbo frames when using in conjunction with OCFS2 ? Thanks -- -------------- next part -------------- An HTML attachment was scrubbed... URL:

On 11/09/2015 12:36 PM, Gordon Messmer wrote: > On 11/09/2015 08:34 AM, Steve Clark wrote: >> Has anyone using CentOS 6 been able to successfully set an mtu larger >> than 9710 >> on an interface. > Maximum frame size varies from implementation to implementation: > http://pages.uoregon.edu/joe/jumbo-clean-gear.html > > It's also worth noting that that due to

I would like to use jumbo frame for local interfaces, but I am not sure in which order to set it up. Should it be set on the physical interface first, then on the bridge and on the guest, or in another way? On some servers there are configurations with vlan on the bridge

Hi everyone, I have looked through the list archives and seen a few posts about jumbo frame support, but there is no definitive answer on whether or not it has been tested or is working for anyone. I tried using an MTU of 9000 in a domU and encountered some very interesting and not-so-great results. My machines used in this test are: * NFS (physical) * dom0 (physical) * domU (virtual)

Hello all, Not sure if I am completely missing something but here goes. I have XCP 1.0 running without any issues. I have the mtu set on both the storage network, the corresponding PIF, and the VIF to 9000 and when displayed in ifconfig it shows that this is indeed true. I have several CentOs 5.6 VMs running in HVM mode (i.e. no xen kernel) which attach to the the storage network through these

Hi all, I am running Ubuntu server 10.04 and use rsync to do all my backups. I would like to backup multiple directories to my external hard drive, but I am faced with a problem on how to set up crontab -e to allow each rsync statement to perform one after the other. Right now I have each one set to run on different nights, but I would like them all to run the same night to allow for a more

I was trying to do some performance testing between using iSCSI on the host as a diskfile to a guest vs the VM guest using the iSCSI device directly. However, in the process of trying to establish a baseline performance figure, I started increasing the MTU settings on the PCI-express NICs with RTL8168B chips. First bottleneck was discovering the max MTU allowed on these is 7K instead of 9K but

What should be the official behaviour here? I must admit some of my scripts probably have both trailing and non-trailing "/". But just played around until it was mirroring into the correct directory. Lachlan. At 18:20 07/11/02 -0500, you wrote: >It appears that the trailing slash in the source is being ignored: > >rsync -auv clam::root/usr/local/bin/ /tmp/bin > >ends

Hi, Increasing MTU beyond 1500 in Linux dom0 results in ooopses. I did not find any statement whether 2.0 series support jumbos or not in dom0. Does it? TIA, Teemu -- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I try: rsync -auv rsync://mirrors.kernel.org/centos/5.2/updates/i386/ ..... And get rsync: read error: Connection reset by peer (104) rsync error: error in rsync protocol data stream (code 12) at io.c(614) [receiver=2.6.8] And then, if I keep trying, eventually rsync 'works' and I get my updates. What is causing this?

Dear RSYNCians, I'm trying to rsync my labtop pc (let's assume A-computer) with my desktop pc (let's assume C-computer) through our firewall. In between there is one computer (let's assume B-computer) that has an open port, so I theoretically could connect via a tunnel. I checked the SSH- website and internet and so on but did not find an answer that works. I tried the

<div> </div><div>Yes, broad. But what guys say: "You LLVM developers are all racists, because you use 'master' word"</div><div>Or broader: "You  all developers are all racists, because you use 'master' word". We are not racists, but other guys think so.</div><div>So let's begin consistent and take into account all

$ rsync -auv \ ftp.funet.fi::CPAN/modules/by-category/05_Networking_Devices_IPC/Net/* . \ | grep -v MOTD: rsync: connection unexpectedly closed (1598 bytes read so far) rsync error: error in rsync protocol data stream (code 12) at io.c(165) This is because the array used to hold the expanded filename glob (argv in rsync_module(), clientserver.c) is only 1000 entries in size, and the above

Dear, I'm trying to put up a scripts to synchronize my computers (HOST_A and HOST_C). I can connect both via HOST_B to avoid the firewall. I am trying to work with the rsync daemon to avoid hanging. I tried to figure out the mailinglist + FAQ, how to do it, but it seems I misunderstand something, since all your previous help did not work for me. I get the following error when executing