similar to: Network broke for a while when libvirtd start

Hi I am trying to do passthrough to guest using sriov and libvirt I tried to use both techniques from here http://wiki.libvirt.org/page/Networking#Assignment_with_.3Chostdev.3E <http://wiki.libvirt.org/page/Networking#Assignment_with_.3Chostdev.3E> Assignment from a pool of SRIOV VFs in a libvirt <network> definition Assignment with <interface

Hello > When start service libvirtd by > > service libvirtd start > > OS: CentOS 6.5 > libvirt: libvirt-daemon-1.2.5-1.mira1.x86_64 https://www.redhat.com/mailman/listinfo/libvirt-users is the official mailing list for the libvirt daemon, maybe you can ask in there and get better support. > Does anyone know the reason? This mailing list is for the general usage of the

I can see from different post that if working with sr-iov, i should work with vlan Is this an obligation to work with vlan if working with sr-iov? If not according to which parameter will the different vf get the traffic. Let's say i declare max_vfs=7, how will the traffic be seperated between the vm? However till i get an answer i tried to work with vlan And i still don't get

Interested in bonding my 2 on board nics along with my add on card NIC for a total of 3. How would this work with the virtual machines? My eths/IPs ---> bond0, bond0:1, etc ---> ? ----> virbr0,virbr0:1 (each machine to have own IP address, one machine may have some virtual sites needing more than one ip, so multiple ips added to mix..) add something to the bond0 file, or just leave

Hello all, I'm currently experiencing an issue with an NFS server I've built (a Dell R710 with a Dell PERC H800/LSI 2108 and four external disk trays). It's a backup target for Solaris 10, CentOS 5.5 and CentOS 6.2 servers that mount it's data volume via NFS. It has two 10gig NICs set up in a layer2+3 bond for one network, and two more 10gig NICs set up in the same way in another

Hello, CentOS team and everyone who cares about CentOS, Huawei release an Euler OS, which is an distribution based on CentOS. http://developer.huawei.com/ict/en/site-euleros/euleros-introduction According to CentOS's statement, CentOS is distributed under the GPLv2 License. http://mirror.centos.org/centos/7.4.1708/os/x86_64/EULA The GPL license requires the modified version to be

Hello, Peter, thanks for your reply 1. Huawei DOES change the distribution EULA, if type in the following command: vi /usr/share/eula/eula.en_US you can see it changed to "HUAWEI EulerOS-2.0" which is a copyright one, let alone original GPL license. According to CentOS Linux EULA The Distribution is released as GPLv2. Individual packages in the distribution come with their own

Hi all, we are testing CentOS 7 in order to migrate from Scientific Linux 6 / CentOS 6 and we are facing an issue with the network. Trying to configure network with teaming in activebackup mode or also with bonding in mode=1 (active backup as well) we see many RX dropped packets in the bond0 interface (around 10% of the total), 100% RX drops in the backup interface and 0% in the active interface.

hi, I have a hard time figuring this out, the kernel says: ... ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 2.5.15> port 0xecc0-0xecdf mem 0xd9e80000-0xd9efffff,0xd9ff8000-0xd9ffbfff irq 40 at device 0.0 on pci4 ix0: Using MSIX interrupts with 9 vectors ix0: Ethernet address: 90:e2:ba:29:c0:54 ix0: PCI Express Bus: Speed 5.0GT/s Width x8 ix1: <Intel(R) PRO/10GbE

Hi all, I just noticed that my two nics that are bonded via mode 0 are showing the same mac addy in ifconfig. Is this normal? In syslog I keep getting; kernel: pbond0: received packet with own address as source address Some guidance is appreciated before I dive in and troubleshoot. If I don't list the mac addy in my ifcfg-th# files, only one of the 2 nic comes up during boot.

Hi list, can somebody fix the bug that the device ixN is missing when the cable mainly the SFP+ module isn't inserted during boot?! Today I connected a new server to our storage system which has 3 ixgbe cards so 6 ports and is freebsd 9 based. Then I have noticed that the link is missing and the free ports were missing from ifconfig. Checking the dmesg revealed the problem. ixN: Hardware

Hi, I have being try to connect a virtual machine to the outside through a bridge on the host. The following shows that I have a bridge. And I'm able to start a guest. pengy@rigel:~$ brctl show bridge name bridge id STP enabled interfaces br0 8000.c81f66e29049 no em4 br1 8000.c81f66e29045 no bond0 virbr0 8000.000000000000 yes

Dne 17.9.2019 v 16:14 Ralf Prengel napsal(a): > > > Am 17.09.2019 um 13:05 schrieb Miroslav Geisselreiter: >> I have brand new PC with this components: >> CPU Intel? Pentium G5400, LGA1151 >> motherboard ASUS PRIME B360M-C >> 16 GB RAM >> HDD 2x ADATA SSD 256GB XPG GAMMIX S11, PCIe Gen3x4 M.2 2280 (RAID1) >> NIC Intel X550-T1 Ethernet Converged Network

Hi, In one of our xen server, I am using two bonding. bond0 : Is for trunk, where the vlans are attached , port eth0 & eth1 is attached to bond0 bond1 : eth2 & eth3 are attached to bond1, where physical ip has been set . In the /etc/xen/xend-config.sxp, I am using (network-script *multi-network-bridge*) , the

Is it possible to do port mirroring while using sriov in the same host and in different host I am using libvirt What must i do? Perhaps bridge two controller virtual function If yes, should I do it with ovs-vsctl, or there is a libvirt functionnality libvirt version: 0.10.2, package: 29.el6_5.12 Open vSwitch) 1.9.0 My ethernet card is... Intel Corporation 82599ES 10-Gigabit

I am experiencing strange network behavior from several DomU''s. I can ssh from DomU to any host on the local lan/vlan, I can ping those hosts. However when I go to resolve a hostname DNS fails. I have verified that three other DomU''s are exhibiting the same behavior. I have also verified that Dom0 is functioning properly and can resolve hostnames and access hosts outside of the

Hi. I have a machine with a local DHCP server and a couple of virtual networks and I've configured the server for each virtual interface, so that I would be able to install VMs on the corresponding subnets using PXE. The problem is that the two DHCP servers (my local server and dnsmasq) are conflicting with each other causing the boot process to either fails or takes ages untill a VM can

I have nic bonding (mode=802.3ad) setup on 2 servers, both running Centos 5.5 In the "Active Aggregator Info", on one reports 4 ports - which is correct - but the other only reports 3 ports. It's always eth0 that shows a different aggregator ID. Changing the cables around so it hits a different port on the switch makes no difference. The switch is correctly configured for the port

On 06/04/2017 05:46 AM, Martin Kletzander wrote: > On Sat, Jun 03, 2017 at 08:27:08PM -0400, Michael C Cambria wrote: >> >> >> On 06/03/2017 05:47 PM, Martin Kletzander wrote: >>> On Sat, Jun 03, 2017 at 05:20:47PM -0400, Michael C Cambria wrote: >>>> I also tried stopping libvirtd, renaming both qemu-system-i386 and >>>> qemu-system-x86_64,

Hi there, I've installed a new KVM-Server. The routing in all instances are only working after "arp -s ip_of_router mac_of_router" Server: CentOS7, KVM Clients: CentOS6 and Fedora 21 What going wrong? [root at bgstkvmlr01 ~]# ifconfig bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST> mtu 1500 inet6 fe80::3ed9:2bff:fe0b:c706 prefixlen 64 scopeid