On Wed, Feb 18, 2015 at 3:10 AM, C. L. Martinez <carlopmart@xxxxxxxxx> wrote:
1) down the vnetX interface from the host node
On Tue, Feb 17, 2015 at 1:43 PM, Sven Kieske <s.kieske@xxxxxxxxxxx> wrote:
>
>
> On 17/02/15 09:18, C. L. Martinez wrote:
>> Hi all,
>>
>> How can I stop/disable a nic in a virtual guest using a virsh
>> command?? I am searching the same effect like if I unplug network
>> cable ... Is it possible?? I have tried with "detach-interface"
>> command without luck. I don't want to remove the nic from guest
>> configuration, only to stop the nic ...
>
> Depending on your network architecture you could just ifdown
> the vmnet, but this just works if you don't have multiple
> vms on one vmnet (which you shouldn't).
>
> HTH
>
> --
Ok, to do a ifdown of virtual bridge it seems the only option.
Many thanks to all for your answers.
* Definitely look to Juerg Haefliger's solution. It's exactly what you want since you requested a method that can be done from the virsh interface. Thanks Juerg!
1) down the vnetX interface from the host node
ip link show dev vnetX
ip link set down vnetX
ip link show dev vnetX
And if using bridged networking, you have one more option.
2) remove the vnetX interface from the bridge
brctl delif <bridge_int> vnetX
Certainly downing the interface using either Juerg's solution via virsh or mine via iproute2 tools is most ideal since it's easier/simpler to reinstate. You can use ifconfig if you prefer it over ip tools, but enjoy those tools and syntax while it remains! [0] ;-)
[0] https://dougvitale.wordpress.com/2011/12/21/deprecated-linux-networking-commands-and-their-replacements/
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Mike
// SilverTip257 //
Mike
// SilverTip257 //
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