[Bridge] Bug? Some interfaces not forwarding
Stephen Hemminger
shemminger at linux-foundation.org
Mon Feb 21 12:13:40 PST 2011
On Mon, 21 Feb 2011 15:18:15 +0000
Rus Foster <twattycake at gmail.com> wrote:
> We've got an issue with some Xen guests and not forwarding packets on
> the bridge for some interfaces but not all others
>
> The main server is 109.169.72.130.
>
> The bridge is eth0 (with peth0)
>
> The IP 109.169.72.249 assigned to vifvm6039.0 works
>
> The IP 109.169.72.251 assigned to vifvm5927.0 doesn't
>
>
> [root at 8 tmp]# brctl show
> bridge name bridge id STP enabled interfaces
> eth0 8000.0025901d7134 yes vifvm5955.0
> tap46.0
> vifvm5911.0
> tap45.0
> vifvm5927.0
> vifvm5912.0
> tap43.0
> vifvm5967.0
> tap40.0
> vifvm5913.0
> vifvm6043.0
> vifvm6032.0
> vifvm6021.0
> vifvm5953.0
> vifvm5907.0
> vifvm5954.0
> tap11.0
> vifvm6039.0
> vifvm6038.0
> tap4.0
> vifvm5919.0
> tap3.0
> vifvm5915.0
> peth0
>
>
> [root at 8 tmp]# brctl showmacs eth0
> port no mac addr is local? ageing timer
> 1 00:0d:29:43:df:ae no 0.18
> 14 00:16:3e:0f:9b:6c no 0.53
> 16 00:16:3e:14:26:36 no 24.73
> 7 00:16:3e:1d:7e:40 no 104.61
> 5 00:16:3e:37:62:9f no 55.77
> 18 00:16:3e:47:27:f9 no 102.34
> 12 00:16:3e:70:56:f2 no 103.13
> 17 00:16:3e:75:4a:a5 no 101.74
> 19 00:16:3e:75:f4:b1 no 40.01
> 23 00:16:3e:76:f7:4d no 33.89
> 13 00:16:3e:79:84:cb no 105.13
> 15 00:16:3e:7a:59:ac no 26.46
> 2 00:16:3e:8d:1e:4d no 0.20
> 8 00:16:3e:96:47:c6 no 105.13
> 10 00:16:3e:9f:3a:69 no 14.17
> 21 00:16:3e:bc:c6:46 no 102.14
> 9 00:16:3e:f2:03:05 no 11.45
> 1 00:23:9c:12:a1:80 no 0.00
> 1 00:25:90:1d:71:34 yes 0.00
> 23 3a:48:46:fa:0f:f3 yes 0.00
> 2 62:7b:18:61:a1:f7 yes 0.00
> 21 66:c2:21:04:72:26 yes 0.00
> 19 7a:8b:f3:51:81:f4 yes 0.00
> 10 a6:7f:67:8e:e5:45 yes 0.00
> 5 c2:2d:30:b5:8e:44 yes 0.00
> 7 ca:a1:4b:0f:7d:c9 yes 0.00
> 13 fe:ff:ff:ff:ff:ff yes 0.00
>
> root at 8 tmp]# uname -a
> Linux 8.xn.nj.damnvps.com 2.6.18-243.el5xen #1 SMP Mon Feb 7 19:07:01
> EST 2011 x86_64 x86_64 x86_64 GNU/Linux
> [root at 8 tmp]# cat /etc/redhat-release
> CentOS release 5.5 (Final)
>
>
> From the server 109.169.72.249 and 109.169.72.251 can be pinged
>
> From externally only 109.169.72.249 can be
>
> There are NO iptables, ebtables rules
>
> Default gateway is defined correctly in each guests. If we reboot the
> server then differenet interfaces work/don't work so its not a VM
> configuration issue
>
> I'm totally out of ideas so thinking it might be a bug
>
> Feedback gratefully received
pseudo ethernet doesn't do promicious correctly? you should use
eth0 not peth0.
What is output of brctl showstp br0?
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