Open Stack

I use Quantum with VLAN and ip networknamespace.
After update some packages, all cloud instances lost connectivity.

I run "ovs-vsctl show" and "ovs-ofctl dump-flows br-int" on both
quantum-node and compute-node to check.
In Quantum node, everything is ok.
*root at quantum:/etc/init.d# ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
 cookie=0x0, duration=3284.199s, table=0, n_packets=33404, n_bytes=2134467,
priority=2,in_port=156 actions=drop
 cookie=0x0, duration=3199.3s, table=0, n_packets=1593, n_bytes=101952,
priority=3,in_port=156,dl_vlan=101 actions=mod_vlan_vid:14,NORMAL
 cookie=0x0, duration=3090.599s, table=0, n_packets=1539, n_bytes=98496,
priority=3,in_port=156,dl_vlan=114 actions=mod_vlan_vid:23,NORMAL
 cookie=0x0, duration=3125.8s, table=0, n_packets=4036, n_bytes=257248,
priority=3,in_port=156,dl_vlan=4 actions=mod_vlan_vid:21,NORMAL*
v.v...

But in compute node, all my flows disappear:
*root at compute-01:~# ovs-ofctl dump-flows br-int
*
*NXST_FLOW reply (xid=0x4):
 cookie=0x0, duration=604.009s, table=0, n_packets=12897, n_bytes=823626,
priority=2,in_port=1 actions=drop
 cookie=0x0, duration=604.591s, table=0, n_packets=0, n_bytes=0, priority=1
actions=NORMAL
*
I restarted nova-compute, quantum-plugin-openvswitch-agent. Also reboot
compute node.
But nothing can help.

I checked log and did not found any error.
Do you know a quick fix for situation like that?

Thank you very much!
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