Hi, All
I went through openstack user/admin guide and get to know neutron
network/subnet concept. As my understanding, network is the logical isolated L2
domain and subnet attached to the network is for IP address management for
attached network. But when playing with real OpenStack, I'm confused with
following questions:
1. In dashboard, I create one pure network (without subnet attached). When VM
connected to this network is started, dashboard reports error. It seems VM
could be started successfully only when attached to network with subnet. I'm
wondering what's the purpose for this restriction? In real world, we often
connect physical machines to pure L2 switch...
2. Through neutron client, we could attach multi-subnets with one network. I'm
confused with this scenario: for one L2 network(vlan) usually we plan one
subnet for that network and start one dhcp server for IP management.
Appreciate your help in advance.
Thanks,
Lyon
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