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xen-users
Re: [Xen-users] intermittent network hangs
> I've seen this pattern on hosts with errors in the bridge config.
> Especially when more than one bridge was used.
Ah, good to hear.
> The default spanning tree ageing time is set to 300 secs. That's more
> than your ~10 minutes, though.
And the problem may happen more frequently than 10 minutes, I've just only
noticed
it while in coding roughly that often. I've done nothing at all to configure or
change the configuration of the bridges, as I remember it, it all just worked
out
of the box. All of my domains have "vif = [ 'bridge=xen-br0' ]" -- is that a
problem?
> 'brctl showstp xen-br0' and
> 'brctl showmacs xen-br0'
# brctl showmacs xen-br0
port no mac addr is local? ageing timer
1 00:00:0c:07:ac:01 no 4.78
1 00:02:b3:1e:36:15 no 296.86
1 00:02:b3:4b:cf:1f no 0.15
1 00:02:b3:4b:cf:8d no 299.25
1 00:03:ba:65:fe:db no 36.73
1 00:03:ba:d0:2a:f7 no 106.00
1 00:03:ff:1f:36:15 no 63.28
1 00:04:00:12:b0:4c no 51.13
1 00:06:5b:39:c8:20 no 8.43
1 00:06:5b:3e:c6:25 no 163.45
1 00:06:5b:ec:3a:a1 no 2.76
1 00:06:5b:f3:42:48 no 12.03
1 00:06:5b:f4:a9:61 no 17.32
1 00:06:5b:f4:a9:69 no 2.39
1 00:0b:db:a8:a8:e9 no 34.92
1 00:0d:56:fd:9a:bb no 74.03
1 00:0d:bc:8d:38:da no 1.57
1 00:0f:1f:03:f9:0f no 163.29
1 00:0f:1f:04:7c:e3 no 36.59
1 00:0f:1f:04:7c:e9 no 39.61
1 00:0f:1f:64:a0:9a yes 0.00
1 00:0f:1f:65:b8:53 no 211.43
1 00:0f:1f:6b:b2:89 no 39.68
1 00:0f:1f:9d:18:30 no 77.91
1 00:10:18:06:5d:4b no 26.58
1 00:11:43:de:20:58 no 6.83
1 00:30:48:20:ab:17 no 0.56
1 00:30:48:20:ae:3a no 295.75
1 00:30:48:20:ae:6e no 98.88
1 00:80:72:09:8a:f4 no 13.11
1 00:90:27:86:f7:b9 no 25.31
1 00:90:27:e5:3a:af no 2.11
1 00:90:27:e5:3f:66 no 32.59
1 00:b0:d0:20:5e:1a no 95.73
1 00:b0:d0:20:5e:79 no 22.35
1 00:b0:d0:20:f0:43 no 30.34
1 00:b0:d0:49:2d:2b no 97.35
1 00:b0:d0:49:c5:b1 no 13.12
1 00:b0:d0:68:1c:97 no 20.86
1 00:b0:d0:fc:01:a2 no 10.18
1 00:d0:01:88:ec:0a no 0.00
1 00:d0:b7:74:b6:1e no 82.95
1 00:d0:b7:74:b7:a3 no 36.52
1 00:d0:b7:84:a8:fc no 28.91
1 00:d0:b7:91:5b:f6 no 39.66
1 08:00:20:cd:84:c0 no 0.12
1 08:00:20:cd:b5:53 no 259.89
1 08:00:20:d2:2e:17 no 170.59
1 08:00:20:fe:61:16 no 127.50
1 08:00:20:fe:a2:5c no 8.44
3 aa:00:00:07:82:1e no 3.49
5 aa:00:00:0b:16:e3 no 0.01
2 aa:00:00:0c:fc:84 no 34.63
4 aa:00:00:50:55:f8 no 8.44
2 fe:ff:ff:ff:ff:ff yes 0.00
# brctl showstp xen-br0
xen-br0
bridge id 8000.000f1f64a09a
designated root 8000.000f1f64a09a
root port 0 path cost 0
max age 20.00 bridge max age 20.00
hello time 2.00 bridge hello time 2.00
forward delay 0.00 bridge forward delay 0.00
ageing time 300.00
hello timer 0.06 tcn timer 0.00
topology change timer 0.00 gc timer 5.27
flags
eth0 (1)
port id 8001 state forwarding
designated root 8000.000f1f64a09a path cost 4
designated bridge 8000.000f1f64a09a message age timer 0.00
designated port 8001 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
vif25.0 (2)
port id 8002 state forwarding
designated root 8000.000f1f64a09a path cost 100
designated bridge 8000.000f1f64a09a message age timer 0.00
designated port 8002 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
vif26.0 (3)
port id 8003 state forwarding
designated root 8000.000f1f64a09a path cost 100
designated bridge 8000.000f1f64a09a message age timer 0.00
designated port 8003 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
vif27.0 (4)
port id 8004 state forwarding
designated root 8000.000f1f64a09a path cost 100
designated bridge 8000.000f1f64a09a message age timer 0.00
designated port 8004 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
vif28.0 (5)
port id 8005 state forwarding
designated root 8000.000f1f64a09a path cost 100
designated bridge 8000.000f1f64a09a message age timer 0.00
designated port 8005 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
Thanks...
--
John Madden
UNIX Systems Engineer
Ivy Tech Community College of Indiana
jmadden@xxxxxxxxxxx
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