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Re: [Xen-users] cross hypervisor communication problem

from [Eric Ross] [Permanent Link][Original]
To: Andy Burns <xen.lists@xxxxxxxxxxx>
Subject: Re: [Xen-users] cross hypervisor communication problem
From: Eric Ross <eross@xxxxxxx>
Date: Wed, 20 Aug 2008 10:45:48 -0500
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Dom0 brctl output

bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.feffffffffff       no              vif0.0
                                                        peth0
xenbr1          8000.feffffffffff       no              vif0.1
                                                        peth1
NOTE: this is the same for all my Dom0s

ifconfig -a on my Dom0s I had to mask out my IPs so that's why there are
XXs there

eth0      Link encap:Ethernet  HWaddr 00:14:4F:20:BF:30
          inet addr:XXX.XXX.XXX.XXX  Bcast:XXX.XXX.XXX.XXX
Mask:255.255.255.0
          inet6 addr: fe80::214:4fff:fe20:bf30/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:23612691 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10330154 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5289657592 (4.9 GB)  TX bytes:10421270721 (9.7 GB)

eth1      Link encap:Ethernet  HWaddr 00:14:4F:20:BF:31
          inet addr:XXX.XXX.XXX.XXX  Bcast:XXX.XXX.XXX.XXX
Mask:255.255.255.0
          inet6 addr: fe80::214:4fff:fe20:bf31/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:27979714 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24557864 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:9088421795 (8.4 GB)  TX bytes:42414741512 (39.5 GB)

eth2      Link encap:Ethernet  HWaddr 00:14:4F:20:BF:32
          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)
          Base address:0x8400 Memory:fbda0000-fbdc0000

eth3      Link encap:Ethernet  HWaddr 00:14:4F:20:BF:33
          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)
          Base address:0x8000 Memory:fbd80000-fbda0000

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:94170 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94170 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:14977913 (14.2 MB)  TX bytes:14977913 (14.2 MB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:23738498 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13712574 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5554987958 (5.1 GB)  TX bytes:10701176202 (9.9 GB)
          Base address:0x8c00 Memory:fbde0000-fbe00000

peth1     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:30539818 errors:0 dropped:0 overruns:0 frame:0
          TX packets:40785208 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12639200501 (11.7 GB)  TX bytes:43648869440 (40.6 GB)
          Base address:0x8800 Memory:fbdc0000-fbde0000

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
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:10330155 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23612693 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:10421270763 (9.7 GB)  TX bytes:5289657732 (4.9 GB)

vif0.1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:24557864 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27979716 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:42414741512 (39.5 GB)  TX bytes:9088421935 (8.4 GB)

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)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21837296 errors:0 dropped:0 overruns:0 frame:0
          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2926456076 (2.7 GB)  TX bytes:1764 (1.7 KB)

xenbr1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5143094 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3541364391 (3.2 GB)  TX bytes:454 (454.0 b)


Sorry, I forgot to include this in the last email

---------------------------------------------------------------------
Eric Ross
Linux Systems Administrator
Argonne National Laboratory
Computing and Information Systems
Phone: 630.252.2600
---------------------------------------------------------------------


Andy Burns wrote:
> 2008/8/19 Eric Ross <eross@xxxxxxx>:
> 
>> If I start a ping on hypervisor FOO to hypervisor BAR, the ping will
>> fail, saying that the destination host cannot be reached.  However, if I
>> start a ping on FOO to BAR, and, at the same time, start a ping from BAR
>> to FOO both commands will succeed.
> 
> By hypervisor I presume you actually mean domU?
> 
> Sounds like a MAC address or bridging issue, did you copy BAR from
> FOO's xen config file? If so did you change the MAC address?  What
> does a "brctl show" on the dom0 look like?  Or an "ifconfig -a" on FOO
> and BAR and the dom0?
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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