Hi all,
I created a two node cluster that manages virtual machines with two
servers connected via a cross cable on the network 10.0.0.0/24. I want
that machines that runs on different servers in the network
172.16.0.0/24 can see all the others.
To make this possible I've configured a vlan on each server:
...
...
5: eth1.111@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP
link/ether 5c:d9:98:b1:4c:4d brd ff:ff:ff:ff:ff:ff
inet 172.16.0.0/24 brd 172.16.0.255 scope global eth1.111
inet6 fe80::5ed9:98ff:feb1:4c4d/64 scope link
valid_lft forever preferred_lft forever
...
...
And created a "lan" network, via virsh:
<network>
<name>lan</name>
<uuid>8ac034c8-553d-b995-5a80-c1c711cb088c</uuid>
<forward dev='eth1.111' mode='route'/>
<bridge name='virbr1' stp='on' delay='0' />
<ip address='172.16.0.2' netmask='255.255.255.0'>
</ip>
</network>
but with this setup "lan" never comes up because, for some reason, the
network is locked:
# virsh net-start lan
error: Failed to start network lan
error: internal error Network 172.16.0.1/255.255.255.0 is already in use
by interface eth1.111
What is not clear to me is why, if I turn down the eth1.111 device,
start the lan network, turn eth1.111 up and then force the brctl addif
command, everything works:
# ifdown eth1.111
Removed VLAN -:eth1.111:-
# virsh net-start lan
Network lan started
# ifup eth1.111
Set name-type for VLAN subsystem. Should be visible in /proc/net/vlan/config
Added VLAN with VID == 111 to IF -:eth1:-
# brctl addif virbr1 eth1.111
# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.6c626dd7518e no eth0
virbr0 8000.000000000000 yes
virbr1 8000.5cd998b14c4d yes eth1.111
Why manually is possible to make things work? What am I ignoring?
Thanks a lot,
--
RaSca
Mia Mamma Usa Linux: Niente è impossibile da capire, se lo spieghi bene!
rasca@xxxxxxxxxxxxxxxxxxxx
http://www.miamammausalinux.org
