This section contains the known issues and workarounds related to networks and networking.
Oracle VM Manager supports eight network cards for each HVM virtual machine as outlined in Table 5 “Virtual machine maximums”. However, the system library does not allow users to add more than three network cards when creating a virtual machine from installation media.
Workaround: After the virtual machine is created, add up to five new network cards by editing the virtual machine in Oracle VM Manager.
VLANs over bond mode 6 (balance-alb) bridge interface are not supported as this mode is incompatible with VLAN bridge interfaces.
Workaround: There are two workarounds for this problem:
Use bond mode 6 as a bridge interface; do not use VLANs over bond mode 6.
Use VLANs over bond modes (1=active-backup or 4=802.3ad) as a bridge interface.
If you move the Cluster Heartbeat network role to another network, with a different IP address, the change is not reflected in the Oracle VM Servers.
Workaround: Edit the /etc/ocfs2/cluster.conf file on each Oracle VM Server in the network to reflect the new IP address, and restart each Oracle VM Server.