Hello All, A little bit ago I wrote an email about network issues I was having. I found the problem... On the VM host, I had a bond set up between two network interfaces. The bond mode was set to mode 1 (active/passive). However when I look at the bond on the box, I get this: [root@node02 bonding]# cat bond4 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: load balancing (round-robin) MII Status: up MII Polling Interval (ms): 0 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: em2 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: d4:ae:52:6d:c8:cc Slave queue ID: 0 Slave Interface: em3 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: d4:ae:52:6d:c8:ce Slave queue ID: 0 Somehow, the OS is not setting the bonding mode right. I verified that it was set to mode 1 in /etc/sysconfig/network-scripts/ifcfe-bond4 When I take the bond away, the host network works perfectly on both of the formerly bonded interfaces. So again, if anyone has any ideas, I'm open to suggestions. Thanks, Dan