[Users] Starting With OpenVZ and Having Interface Issues

[Matt]

I just installed OpenVZ on CentOS 6.x 64 bit following this guide a
few days ago.

http://openvz.org/Quick_Installation_CentOS_6

I am mostly interested in creating containers with veth interfaces so
I can assign multiple public IPv4 and IPv6 addresses from inside the
container.  I noticed that when I am logged into the CentOS physical
server with putty through ssh I can start a container that has a veth
interface with 'vzctl start 102' and it starts just fine.  I can ping
its IPv4 and IPv6 addresses just fine.  However when I issue 'vzctl
stop 102' my putty ssh connection to the OpenVZ server is dropped and
I must reconnect.  I am able to reconnect just fine.  Again, I am
logged into the OpenVZ master not the container.

Can anyone tell me what is going on here?  After further testing I
determined it does not always do it.  The first time I stop a
container after I reboot the master, physical server, it seems most
prone to act up.

######### just did reboot 30 minutes ago or so............

[root at ex1 ~]# vzlist
      CTID      NPROC STATUS    IP_ADDR         HOSTNAME
       103         92 running   -               server.example456.com
[root at ex1 ~]# vzctl start 102
Starting container...
Container is mounted
Setting CPU units: 1000
Setting CPUs: 1
Configure veth devices: veth102.0
Adding interface veth102.0 to bridge vmbr0 on CT0 for CT102
Container start in progress...
[root at ex1 ~]# vzlist
      CTID      NPROC STATUS    IP_ADDR         HOSTNAME
       102         19 running   -               server102.example.com
       103         92 running   -               server.example456.com
[root at ex1 ~]# vzctl stop 102
Stopping container ...

############## Here is where I get kicked off putty/ssh......