Hi, We are using Xen 3.0.3 (latest in Centos 5) to test our application on different platforms. We constantly start/destroy different guests, variety of Windows and Linux VMs : # ip addr show|tail -4 25094: vif18682.0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 500 link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff 25095: tap4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 500 link/ether fe:f4:fd:9d:3d:57 brd ff:ff:ff:ff:ff:ff All guests reside in xen network: # virsh net-dumpxml xen <network> <name>xen</name> <forward mode=''route''/> <bridge name=''virbr0'' stp=''on'' delay=''0'' /> <ip address=''10.1.0.1'' netmask=''255.255.0.0''> </ip> </network> We are experiencing network disruption, packet losses when guests are started/destroyed. Communications of guests with outside "world" as well as 10.1.0.1 are affected. What could be the root cause and what we can do to resolve this issue? Thanks, Vadym _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users