Re: [Xen-users] no network traffic between domUs

[Tim Post <tim.post@xxxxxxxxxxxxxxx>]

Can you post the contents of /etc/network/interfaces from dom-0 on the
machine having the problems? 

Thanks -
Tim

On Fri, 2006-08-04 at 11:17 -0600, Gabriel Gunderson wrote:
> On 8/3/06, Justin R Findlay <justin@xxxxxxxxxxx> wrote:
>         UPDATE: Just before sending this email I noticed that traffic
>         between
>         the two domUs starts flowing as expected only after I ping the
>         client
>         from the server, however I'm still mystified as to what is
>         really going
>         on.
> 
> I'm working with Justin on this and wanted to add a few details.  As
> he said, if you try to ping the client DomU from the
> gateway/firewall/router server DomU, then (after 5 or 6 seconds) the
> traffic will start flowing.  Only *after* doing this can the client
> DomU then ping the gateway (or beyond).  I'm 99.9% sure that the
> networking is setup correctly and *should* be working.
> 
> I believe it's a Xen or NIC kernel module problem.  We are testing a
> setup like it and it *seems* to work well for us on different
> hardware.  This box is a Dell PowerEdge with Broadcom chips (e1000).
> Ever heard of this type of behavior?  Any ideas? 
> 
> Thanks,
> Gabe
> 
> P.S.  Additional info:
> 
> It's running Ubuntu 6.06 LTS Server (updated) with the official Xen
> 3.0.2 kernel.
> 
> # lspci | grep Ether
> Intel Corporation 82544EI Gigabit Ethernet Controller (Copper) (rev
> 02) 
> Intel Corporation 82544EI Gigabit Ethernet Controller (Copper) (rev
> 02)
> 
> P.P.S.  D'oh!  I just noticed all of these dropped packets shown below
> (vif0.0, vif12.0, vif12.1, vif12.2, vif13.0).   Now I have to figure
> out what that means. 
> 
> 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 MULTICAST  MTU:1500  Metric:1
>           RX packets:89084 errors:0 dropped:0 overruns:0 frame:0 
>           TX packets:110727 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:24713772 (23.5 MiB)  TX bytes:18362931 (17.5 MiB)
>           Base address:0xdce0 Memory:feb60000-feb80000 
> 
> 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 MULTICAST  MTU:1500  Metric:1
>           RX packets:79852 errors:0 dropped:0 overruns:0 frame:0 
>           TX packets:60698 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:13187315 (12.5 MiB)  TX bytes:10060245 (9.5 MiB)
> 
> vif12.0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
>           inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3856 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:5290 errors:0 dropped:224 overruns:0 carrier:0 
>           collisions:0 txqueuelen:0
>           RX bytes:471277 (460.2 KiB)  TX bytes:1723434 (1.6 MiB)
> 
> vif12.1   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link 
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:1030 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1817 errors:0 dropped:223 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
>           RX bytes:1230197 (1.1 MiB)  TX bytes:132427 (129.3 KiB)
> 
> vif12.2   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:1484 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
> 
> vif13.0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:4850 errors:0 dropped:0 overruns:0 frame:0 
>           TX packets:2441 errors:0 dropped:97 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:842701 (822.9 KiB)  TX bytes:1314526 (1.2 MiB)
> 
> xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
>           inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:4470 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 
>           collisions:0 txqueuelen:0
>           RX bytes:202946 (198.1 KiB)  TX bytes:468 (468.0 b)
> 
> 
> -- 
> Gabriel Gunderson
> http://gundy.org 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users


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