Murali Reddy created CLOUDSTACK-6925:
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Summary: [OVS] get rid custom logic to create bridges on hosts in
the XenServer pool
Key: CLOUDSTACK-6925
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6925
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Affects Versions: 4.2.0
Reporter: Murali Reddy
Assignee: Murali Reddy
Fix For: 4.4.0
In XenServer, when we created a GRE tunnel network, they don't have a PIF
attached it. XenServer treats network without a PIF attached as internal
network. In a pool, XenServer internal network is visible across the hosts in
the pool, but bridge is created only on the first host on which VIF connected
to internal network is started. On rest of the hosts when VM is started, xapi
fails with VM_REQUIRES_NETWORK exception. CloudStack had workaround for this
problem where it creates a dom0 VIF connected to the network. Which plugged and
unplugged to ensure bridge is created on all hosts in the pool. This approach
is error prone and resulted in multiple issues.
Recommended way by XenServer, is to mark the network other-config param
assume_network_is_shared set to true.
Network.other_config:assume_network_is_shared=true
This will ensure, when a VM connected to a internal network is launched on any
host in the pool, bridge is automatically provisioned.
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