Displaying 20 results from an estimated 5000 matches similar to: "using KVM Virbr0 with bonded nics?"
2011 Oct 25
1
bridging bonded NICs, centos6
Trying to think this through, hope someone can lend a hand.
I have 3 eths I want to bond together and that seems simple enough.
eth0,1,2 <-> bond0 , though not sure how this would be for multiple ip
addresses needed for the virtual machines...
perhaps eth:0, eth:1 etc....to bond0:1, bond0:2 ?
then I want to bridge to my virtual machines....
I am going to be using virtual machines, each
2009 Oct 06
1
ifconfig showing same mac for 2 nics in same bond
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.
2007 Mar 19
2
TC not working well with bonded nics please help
Hi,
I am facing a problem when I run tc on the bonded nic cards.
When I run tc on a single nic card, it worked perfectly fine. But when I
run tc on a bond of two nics, tc gives poor performance. The two nics
were bonded in round-robin (load balancing) mode. I created a qdisc, class
and a filter as follows:
tc qdisc add dev bond0 root handle 1: htb
tc class add dev bond0 parent 1: classid
2013 Apr 15
1
how to start virbr0-nic when start NAT network virbr0
in my case each ethernet must in UP status even it is a NAT network
where is the point i can start its virt-ethernet when i start a NAT-network?
thanks
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2016 May 12
2
Re: dhcpd (via systemd) @boottime which does not wait for the interface..
On Fri, 2016-05-06 at 07:41 -0400, Laine Stump wrote:
> On 05/04/2016 08:40 AM, lejeczek wrote:
>
> > hi users
> >
> >
> > I have my dhcpd to serve nothing but virbr0 (libvirt), OS is Centos
> > 7.2
> > Dhcpd would not start, complaining like this:
> >
>
> Is virbr0 created by libvirt as part of one of its "virtual
>
2010 Sep 05
3
ip aliasing on bonded interface possible?
Has anyone successfully created a bonded interface (bond0) with say
two nics AND also then aliased that interface to get bond0 and bond0:1
(for an alias ip)
I just want to know if it's possible and reliable
Thanks
--
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
2008 Sep 18
1
How to create a virtual bonded interface?
Hello,
I have a server with 4 NICS running CentOS 5.2. I have bonded the
interfaces together such that 'bond0' consists of eth0-3. This is not a
problem, and works fine.
However, I now need to create a virtual interface. In a non-bonded
server I would just create something like eth0:1, but with a bonded
interface I am a bit confused. I have created bond0:1 simple by copying
the
2007 Apr 18
2
[Bridge] Bridging over a bonded interface?
Hi,
This may sound crazy but I will go ahead anyway. Here's my scenario:
ifconfig bond0 10.10.10.1 netmask 255.0.0.0
ifenslave bond0 eth0
ifenslave bond0 eth1
brctl addbr stp0
brctl addif stp0 bond0
brctl stp stp0 on
Is this a valid scenario? I am trying to bond two interfaces and run STP
over the bonded interface..The problem I am trying to solve is to run STP
over aggregated links
2012 Sep 10
1
virtual networking - virbr0-nic interface
I need some help in understanding libvirt's virtual networking. I have configured bridged networking (shared physical device) on libvirt+KVM system which is working fine. Also, I am using default NAT network on with virbr0 bridge device and virbr0-nic. I would like to get better understanding on virbr0-nic works in this virtual network configuration. I understand that traffic from virbr0
2012 Jan 27
2
After a long break, one more try at bond/bridge nics
took a couple months off due to road blocks, hoping a fresh look would
allow me to use my server as desired.
I have three ports, eth0-2 over two nics.
I want to bond them, and then use a bridge to connect to virtual
machines on the virtual host computer.
Never having done this, I am confused on some parts.
Here is where I am at now and any pointers helpful. Single server,
centos 6.x
My issue
2018 Feb 24
2
Network broke for a while when libvirtd start
When start service libvirtd by
service libvirtd start
the network will broke for a while and then reconnected. Following is /var/log/messages:
Feb 24 13:28:51 node-0 kernel: lo: Dropping TSO features since no CSUM feature.
Feb 24 13:28:51 node-0 kernel: lo: Disabled Privacy Extensions
Feb 24 13:28:51 node-0 kernel: virbr0: Dropping TSO features since no CSUM feature.
Feb 24 13:28:51 node-0
2018 Oct 04
3
Need help with Linux networking interfaces and NIC bonding
Hello everyone
I am running into some strange issues when configuring networking
interfaces on my physical server running Centos 7.5. Let me give you an
overview of what's going on:
We have a physical server, running CentOS 7.5. This server has one 4 port
NIC and one 2 port NIC and a Dell IDRAC port. The first port of the 4 port
NIC, em1, is used for Management traffic. The first port of
2011 Jan 17
2
nic bonding
I've just setup nic bonding on our server (DL585-G7 running Centos 5.5 x86_64) as detailed on the wiki: http://wiki.centos.org/TipsAndTricks/BondingInterfaces and all seems fine but from other "howto's" I've seen on the web, they're should be a /proc/net/bond0/info
As far as I can see, I don't have one and I'm not sure if it should be there or its absence is a
2014 Nov 12
2
Do not attempt to add physical NIC to virbr0
Hi,
I got this NOTE on most of the link. But I am not getting reason for this.
Why someone should not add physical NIC to virbr0. I tried to add my eth1
to virbr0 and it get added.
So whether it affects to some functionality of NAT network?
--
Sagar Dilip Shedge,
Pune.
With Regards.
2009 Jul 05
9
Xen Networking and bonded interfaces on Debia Lenny
Greetings all. This has been an ongoing issue for me for a few months, and I''ve been trying to get an answer.
My server has two NICs, and I want to set up the following:
NICs (x2) -> bond (mode 5) -> Xen Bridge -> Doms
...however, trying to configure this doesn''t seem to work: network-bridge steals eth0 instead of bond0, which breaks the bond AND my networking. The
2007 Oct 16
7
Xen with NIC Bonding on Debian Etch ?
Hi guys,
I am trying to get bonding work on a debian etch system. I searched
already in the mailing list but unfortunately I couldnt find a proper
solution. This is what i did so far.
- Installed Debian Etch on my server
- Installed the following packages for using Xen from the Debian repository:
xen-hypervisor-3.0.3-1-i386-pae
linux-image-2.6.18-5-xen-686
linux-image-2.6.18-5-xen-686
xen-tools
2017 Jun 20
2
Re: guest A from virbr0 can talk to guest B in virbr1 but not vice versa
On Tue, Jun 20, 2017 at 10:05:19AM +0200, Martin Kletzander wrote:
>On Tue, Jun 20, 2017 at 02:26:59AM -0400, Travis S. Johnson wrote:
>>Hello,
>>
>>I came across an interesting problem in my home lab a few weeks ago as I'm
>>prepping for my RHCE exam using Michael Jang study guide. I've been at this
>>for days now, and I still can't wrap my head around
2019 Sep 20
2
7.7.1908, interface bonding, and default route
Hi!
I just upgraded a machine to 7.7.1908 and the default route is not being
set on boot. This particular server has a bonded interface, and the
corresponding configuration for the master is (
/etc/sysconfig/network-scripts/ifcfg-bond0):
TYPE=Bond
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
NAME=bond0
DEVICE=bond0
ONBOOT=yes
IPADDR=10.3.20.131
PREFIX=24
2014 Nov 12
3
Put virbr0 in promiscusous
Hi ,
I have two virtual machines VM1 and VM2. Then I have added eth0 of my VM
to 'default' network.
Use case :-
I want to monitor all traffic on virbr0('default' network).
Steps followed :-
1. Add VM1 eth0 to virbr0
2. Add VM2 eth1 to virbr0
3. brctl setageing ovsbr0 0 ..(To put bridge in promiscuous)
Now I am running tcpdump on eth1 of VM2 and trying to ping
2012 May 13
4
True bond howto for Centos 6
Hi all,
Read many posts on the subject.
Using 802.3ad.
Few problems;
Cannot ping some hosts on the network, they are all up.
Cannot resolve via DNS which is one of the hosts that I cannot ping, internal nor external DNS hosts.
Unplugging the NICS and plugging them back in will then not allow pining if the default d=gateway.
When cold booting it somewhat works, some hosts are pingable while