Hello all,
we recently experience intermittent packet
losses on child system.
In this situation the the root server is
still reachable, access to the child is possible via console, and also you can ping
from root to child system. But you cannot ping from external to the child and
from (console) child to external.
This happens every now and then and the
duration differs from few seconds to sometimes more than half a minute.
I cannot find a solution in the internet or
any help resource out there, … maybe my search patterns are dumb… I
don’t know.
Also I cannot find anything in any system
log…
Maybe there is someone who had the same
issues.
I found something about bridge helo time,
that apparently must not be zero but “brctl showstp xenbr0” shows
this:
xenbr0
bridge
id
8000.feffffffffff
designated
root 8000.feffffffffff
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
300.01
hello timer
1.77
tcn
timer
0.00
topology change
timer
0.00
gc
timer
0.09
flags
Therefore it shouldn’t be zero…
My domain-config is set up like this:
disk = [ 'file:/vserver/domains/xyz/disk.img,sda1,w',
'file:/vserver/domains/xyz/swap.img,sda2,w' ]
#
# Hostname
#
name = 'xyz'
#
# Networking
#
vif = [ 'ip=x.x.x.x' ]
#
# Behaviour
#
on_reboot = 'restart'
on_crash = 'restart'
ifconfig
eth0
Link encap:Ethernet HWaddr 00:11:6B:93:6F:F4
inet addr:x.x.x.x Bcast:xx.xx.x.x Mask:255.255.255.224
inet6 addr: xxx::xxx:xxx:xxx:xxx/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:680162 errors:0 dropped:0 overruns:0 frame:0
TX packets:687269 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:95845391 (91.4 MiB) TX bytes:100974938
(96.2 MiB)
eth0:2
Link encap:Ethernet HWaddr 00:11:6B:93:6F:F4
inet addr:x.x.x.x Bcast:x.x.x.x Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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:14729 errors:0 dropped:0 overruns:0 frame:0
TX packets:14729 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2272689 (2.1 MiB) TX bytes:2272689 (2.1 MiB)
peth0
Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: xxx::xxx:xxx:xxx:xxx /64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:478347 errors:3 dropped:12 overruns:1 frame:0
TX packets:505109 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:75612245 (72.1 MiB) TX bytes:88192492 (84.1 MiB)
Interrupt:18 Base address:0x4000
vif0.0
Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: xxx::xxx:xxx:xxx:xxx /64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:687269 errors:0 dropped:0 overruns:0 frame:0
TX packets:680162 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:100974938 (96.2 MiB) TX bytes:95845391 (91.4 MiB)
vif4.0
Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: xxx::xxx:xxx:xxx:xxx /64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:209217 errors:0 dropped:0 overruns:0 frame:0
TX packets:217172 errors:0 dropped:2 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:19954554 (19.0 MiB) TX bytes:22273840 (21.2 MiB)
xenbr0
Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: xxx::xxx:xxx:xxx:xxx /64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:6847 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:220966 (215.7 KiB) TX bytes:0 (0.0 b)
Any help would be appreciated!
Thanks in advance
Christian
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