}
for (Long vpcId: vpcIds) {
VpcVO vpc = _vpcDao.findById(vpcId);
// nothing to do if the VPC is not setup for distributed routing
if (vpc == null || !vpc.usesDistributedRouter()) {
return;
}
// get the list of hosts on which VPC spans (i.e hosts that need to be aware of VPC topology change update)
List<Long> vpcSpannedHostIds = _ovsNetworkToplogyGuru.getVpcSpannedHosts(vpcId);