[libvirt] macvtap support in libvirt 0.9.8

[Amit Tewari]

Hi all,

When I see dmesg on host machine it gives error- "macvtap0: no IPv6
routers present"

 

Is this error causing saome problem..

Even if guest starts it gives error "Bringing up interface eth0:  Device
eth0 does not seem to be present, delaying initialization.

[FAILED]"

 

Is this dmesg =  - "macvtap0: no IPv6 routers present" the cause???

 

________________________________

From: libvir-list-bounces at redhat.com
[mailto:libvir-list-bounces at redhat.com] On Behalf Of Amit Tewari
Sent: Monday, December 12, 2011 3:50 PM
To: libvir-list at redhat.com
Subject: Re: [libvirt] macvtap support in libvirt 0.9.8

 

Hi all,

 

Please ignore my previous mail..

 

This is my test scenario

 

My test environment

Host os=rhel6.1

Guest os = rhel6.1

Libvirt=0.9.8

Kvm hypervisor

 

I am creating a macvtap interface on host machine at eth0 interface

#ip link show macvtap0

51: macvtap0 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq
state UNKNOWN qlen 500

    link/ether 1e:aa:f7:43:7e:3d brd ff:ff:ff:ff:ff:ff

 

I have made this entry in guest xml file

 

<interface type='direct'>

      <mac address=1e:aa:f7:43:7e:3d'/>

      <source dev='eth0' mode='bridge'/>

      <model type='virtio'/>

      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>

    </interface>

 

Now when I start the guest 

#virsh start guest

It gives following message

error: Failed to start domain guest

error: Cannot set interface flags on 'macvtap1': Device or resource busy

 

 

 

Please let me know what else we need to do to make macvtap work on kvm.

 

 

________________________________

From: libvir-list-bounces at redhat.com
[mailto:libvir-list-bounces at redhat.com] On Behalf Of Amit Tewari
Sent: Monday, December 12, 2011 3:22 PM
To: libvir-list at redhat.com
Subject: [libvirt] macvtap support in libvirt 0.9.8

 

Hi all,

 

My test environment

Host os=rhel6.1

Guest os = rhel6.1

Libvirt=0.9.8

Kvm hypervisor

 

I am creating a macvtap interface on host machine at eth0 interface

#ip link show macvtap0

51: macvtap0 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq
state UNKNOWN qlen 500

    link/ether 1e:aa:f7:43:7e:3d brd ff:ff:ff:ff:ff:ff

 

I have made this entry in guest xml file

 

<interface type='direct'>

      <mac address=1e:aa:f7:43:7e:3d'/>

      <source dev='eth0' mode='bridge'/>

      <model type='virtio'/>

      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>

    </interface>

 

Now when I start the guest 

#virsh start guest

It gives following message

"Bringing up interface eth0:  Device eth0 does not seem to be present,
delaying initialization.

[FAILED]"

 

Guest eth interface does not create. what is the problem.

 

Please let me know what else we need to do to make macvtap work on kvm.



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