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Re: [Xen-users] 2 network connection for dom0 and domU(s)

To: chris <tknchris@xxxxxxxxx>
Subject: Re: [Xen-users] 2 network connection for dom0 and domU(s)
From: Gabor Szilagyi <szilagyi@xxxxxxxxxxxx>
Date: Thu, 18 Feb 2010 12:36:22 -0500
Cc: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
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chris wrote:
> what does ifconfig -a and "brtcl show" output?

When I try with the two bridge config line

vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' ,
'mac=00:16:3e:10:01:01, bridge=eth1', ]

got this error and the ifconfig/brctl below
Using config file "./test1_pv.cfg".

Error: Device 1 (vif) could not be connected. Hotplug scripts not working.


rasnew:/home/gabor# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
          inet addr:1 XX.XX.242.105  Bcast: XX.X.242.255  Mask:255.255.255.0
          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:652048 errors:0 dropped:0 overruns:0 frame:0
          TX packets:62069 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:130026530 (124.0 MiB)  TX bytes:7218830 (6.8 MiB)

eth1      Link encap:Ethernet  HWaddr 00:0e:0c:64:cf:3c
          inet addr:10.0.0.105  Bcast:10.0.0.255  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)

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)

peth0     Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:714082 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94462 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:229396507 (218.7 MiB)  TX bytes:9422167 (8.9 MiB)
          Memory:fc800000-fc820000

tmpbridge Link encap:Ethernet  HWaddr 72:b2:05:6d:34:50
          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)

rasnew:/home/gabor# brctl show
bridge name     bridge id               STP enabled     interfaces
eth0            8000.002186ef3ebb       no              peth0
tmpbridge               8000.000000000000       no

end domU eventualy quits

trying with domU config

vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' , ]

No other changes !!!
rasnew:/home/gabor# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
          inet addr: XX.XX.242.105  Bcast:XX.XX.242.255  Mask:255.255.255.0
          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:652584 errors:0 dropped:0 overruns:0 frame:0
          TX packets:62139 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:130063411 (124.0 MiB)  TX bytes:7237170 (6.9 MiB)

eth1      Link encap:Ethernet  HWaddr 00:0e:0c:64:cf:3c
          inet addr:10.0.0.105  Bcast:10.0.0.255  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)

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)

peth0     Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:714624 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94547 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:229442341 (218.8 MiB)  TX bytes:9441589 (9.0 MiB)
          Memory:fc800000-fc820000

tmpbridge Link encap:Ethernet  HWaddr 72:b2:05:6d:34:50
          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)

vif21.0   Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:15 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15 errors:0 dropped:6 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:872 (872.0 B)  TX bytes:2021 (1.9 KiB)


rasnew:/home/gabor# brctl show
bridge name     bridge id               STP enabled     interfaces
eth0            8000.002186ef3ebb       no              peth0
                                                        vif21.0
tmpbridge               8000.000000000000       no


I am not sure if this helps ...

Gabor
> 
> On Thu, Feb 18, 2010 at 11:46 AM, Gabor Szilagyi <szilagyi@xxxxxxxxxxxx
> <mailto:szilagyi@xxxxxxxxxxxx>> wrote:
> 
> chris wrote:
>> In my experience its because the bridge is not brought up unless the
>> interface is configured. Does the eth1 on dom0 have an IP address
> or did
>> you put it up with ifconfig?
> 
> Thanks Chris,
> 
> Yes, it is fully configured (second network cable is not attached right
> now but was tested). Actually /etc/network/interfaces file is fully
> configured on the dom0 for eth0 and eth1 ... just the second network is
> not in the location where the host is now :-) could this be an issue?
> 
> See ifconfig print out in my message below.
> 
> Again, when I have only one bridge declared in the domU config (see
> below it comes up fine with one interface using the modifed wrapper but
> with both it hangs
> 
> Gabor
> 
> 
>> - chris
> 
>> On Thu, Feb 18, 2010 at 10:21 AM, Gabor Szilagyi
> <szilagyi@xxxxxxxxxxxx <mailto:szilagyi@xxxxxxxxxxxx>
>> <mailto:szilagyi@xxxxxxxxxxxx <mailto:szilagyi@xxxxxxxxxxxx>>> wrote:
> 
>> I am new to xen and went through the wiki(s) on bridging btw dom0
>> and domU.
> 
>> My physical host has two network card which needs to be attached
> to two
>> different network (one private one public).
> 
>> First using one bridge was successful but I am having trouble to bring
>> up the second. I have tried to  modifie the xendconfig and tried to
>> create a custom wrapper for the bridging script following some
> examples.
> 
>> The dom0 is Debian Squeeze (base install) with dom0 kernel
> compiled from
>> the jeremy's tree (no problem there). The Hypervisor 3.4.2 (64bit)
> 
>> I have not found exact receipt for the layout I want
> 
>> dom0 -- eth0 -- XX.XX.242.0/24 -- "bridge1" -- eth0 -- domU1
>> dom0 -- eth1 -- 10.0.0.0/24 <http://10.0.0.0/24>
> <http://10.0.0.0/24>    -- "bridge2" --
>> eth1 -- domU1
> 
>> All the interfaces will be using static IP (I have no problem
>> configuring those within their OS).
> 
> 
>> Current setup:
> 
>> rasnew:/etc/xen# cat xend-config.sxp|grep -v ^#|grep bridge
>> (network-script network-bridge-custom)
>> (vif-script vif-bridge)
> 
>> rasnew:/etc/xen# cat ./scripts/network-bridge-custom
>> #!/bin/sh
>> /etc/xen/scripts/network-bridge "$@" netdev=eth0
>> /etc/xen/scripts/network-bridge "$@" netdev=eth1
> 
> 
>> The test domU config is like this the uncommented line would hang the
>> domU although it shows up in xm list
> 
>> rasnew:/etc/xen# cat test1_pv.cfg
>> bootloader = '/usr/lib/xen-3.4/bin/pygrub'
>> memory = 256
>> name = "testPV"
>> vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' , ]
>> #vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' ,
> 'mac=00:16:3e:10:01:01,
>> bridge=eth1', ]
>> disk = [ 'phy:/dev/vm-vg/testdomU.disk,xvda1,w', ]
> 
>> On the host both eth0 and eth1 us up :
> 
>> rasnew:/etc/xen# ifconfig
>> eth0      Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
>>          inet addr: XX.XX.242.105  Bcast: XX.XX.242.255
>>  Mask:255.255.255.0
>>          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
>>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>          RX packets:643696 errors:0 dropped:0 overruns:0 frame:0
>>          TX packets:61616 errors:0 dropped:0 overruns:0 carrier:0
>>          collisions:0 txqueuelen:0
>>          RX bytes:129478544 (123.4 MiB)  TX bytes:7094105 (6.7 MiB)
> 
>> eth1      Link encap:Ethernet  HWaddr 00:0e:0c:64:cf:3c
>>          inet addr:10.0.0.105  Bcast:10.0.0.255  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)
> 
> 
> 
>> Not sure what else I should list here :-)
> 
>> Any suggestion would be appreciated. Can this be done with the xen
>> scripts or I have to build the bridges manually?
> 
>> Thanks.
> 
>> Gabor
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx <mailto:Xen-users@xxxxxxxxxxxxxxxxxxx>
> <mailto:Xen-users@xxxxxxxxxxxxxxxxxxx
> <mailto:Xen-users@xxxxxxxxxxxxxxxxxxx>>
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> 
> 
> 
> 

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