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Robert Dunkley

2008-Aug-08 08:59 UTC

[Xen-users] Centos 5.2, Xen 3.2.1 and Bridge Problems

I''m running Centos 5.2 with Xen 3.2.1 installed. The default bridge
config of attaching "virbr0" to eth/peth0 works but I need to create
two
bridges, one on eth0 and one on eth1. 

 

I have tried the script here:

http://www.centos.org/docs/5/html/5.1/Virtualization_Guide/ch-virt-bridg
e-errors.html

 

It does nothing different on startup (Despite editing Xend-config.sxp).
If I manually execute it with ./script start then it kills all network
connections to the server. I have reset the server to its default single
bridge config, does anyone know how to get two bridges up and running?

 

Below are details of the working default single bridge config.

 

Thanks,

 

Rob

 

 

Brctl show:

bridge name bridge id         STP enabled interfaces

eth1        8000.00e081b24ef9 no          peth1

virbr0            8000.000000000000 yes         

 

Ifconfig -a:

eth0      Link encap:Ethernet  HWaddr 00:E0:81:B2:4E:F8  

          inet addr:192.168.2.160  Bcast:192.168.2.255
Mask:255.255.255.0

          UP BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

          Memory:dffe0000-e0000000 

 

eth1      Link encap:Ethernet  HWaddr 00:E0:81:B2:4E:F9  

          inet addr:10.0.0.160  Bcast:10.0.0.255  Mask:255.255.255.0

          inet6 addr: fe80::2e0:81ff:feb2:4ef9/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:398 errors:0 dropped:0 overruns:0 frame:0

          TX packets:84 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:24373 (23.8 KiB)  TX bytes:16454 (16.0 KiB)

 

ib0       Link encap:InfiniBand  HWaddr
80:00:04:04:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00  

          inet addr:192.168.10.160  Bcast:192.168.10.255
Mask:255.255.255.0

          inet6 addr: fe80::202:c902:22:d451/64 Scope:Link

          UP BROADCAST RUNNING  MTU:32768  Metric:1

          RX packets:114 errors:0 dropped:0 overruns:0 frame:0

          TX packets:157 errors:0 dropped:11 overruns:0 carrier:0

          collisions:0 txqueuelen:256 

          RX bytes:6768 (6.6 KiB)  TX bytes:15314 (14.9 KiB)

 

lo        Link encap:Local Loopback  

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:8 errors:0 dropped:0 overruns:0 frame:0

          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)

 

peth1     Link encap:Ethernet  HWaddr 00:E0:81:B2:4E:F9  

          inet6 addr: fe80::2e0:81ff:feb2:4ef9/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:548 errors:0 dropped:0 overruns:0 frame:0

          TX packets:154 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100 

          RX bytes:39709 (38.7 KiB)  TX bytes:32376 (31.6 KiB)

          Memory:dff80000-dffa0000 

 

sit0      Link encap:IPv6-in-IPv4  

          NOARP  MTU:1480  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

veth0     Link encap:Ethernet  HWaddr 00:00:00:00:00:00  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

veth1     Link encap:Ethernet  HWaddr 00:00:00:00:00:00  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

veth2     Link encap:Ethernet  HWaddr 00:00:00:00:00:00  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

veth3     Link encap:Ethernet  HWaddr 00:00:00:00:00:00  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

vif0.1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

vif0.2    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

vif0.3    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  

          BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  

          inet addr:192.168.122.1  Bcast:192.168.122.255
Mask:255.255.255.0

          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:35 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:0 (0.0 b)  TX bytes:9173 (8.9 KiB)

 

 

 


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nathan@robotics.net

2008-Aug-08 09:42 UTC

head link

Re: [Xen-users] Centos 5.2, Xen 3.2.1 and Bridge Problems

On Fri, 8 Aug 2008, Robert Dunkley wrote:
> I''m running Centos 5.2 with Xen 3.2.1 installed. The default
bridge
> config of attaching "virbr0" to eth/peth0 works but I need to
create two
> bridges, one on eth0 and one on eth1.
You can just use ifcfg scrips in /etc/sysconfig/network-scrips, as an 
example I have:

[root@xen0 network-scripts]# more ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none
BRIDGE=private
HWADDR=00:30:48:7D:66:CA

[root@xen0 network-scripts]# more ifcfg-private
DEVICE=private
ONBOOT=YES
BOOTPROTO=static
IPADDR=10.11.0.220
NETMASK=255.255.255.0
GATEWAY=10.11.0.1
TYPE=Bridge

[root@xen0 network-scripts]# more ifcfg-eth1
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
BRIDGE=public
HWADDR=00:30:48:7D:66:CB

[root@xen0 network-scripts]# more ifcfg-public
DEVICE=public
ONBOOT=YES
BOOTPROTO=none
TYPE=Bridge


I could have used an IP address for ifcfg-public, but the xen0 box only 
needs access to the private segment. My DomUs then access public and 
private bridges.

><>Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

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Xen users - Aug 2008 - Centos 5.2, Xen 3.2.1 and Bridge Problems

[Xen-users] Centos 5.2, Xen 3.2.1 and Bridge Problems

Re: [Xen-users] Centos 5.2, Xen 3.2.1 and Bridge Problems