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<div>The DHCP namespace connects to the VM network in that model, along with the instances. The router namespace connects to both the external and VM networks in that model. The router can ping the DHCP namespace along with instances, and vice versa. The router
namespace provides external connectivity to instances via floating IPs (ie NATs) sourced from the external network.</div>
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<div>The management network is used for OpenStack service traffic. You can get creative and collapse some of those networks in some cases.<br>
<br>
<div>James Denton</div>
<div>Network Engineer</div>
<div>Rackspace Private Cloud</div>
<div><a href="mailto:james.denton@rackspace.com">james.denton@rackspace.com</a></div>
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Sent from my iPhone</div>
<div><br>
On Oct 7, 2014, at 7:05 PM, Danny Choi (dannchoi) <<a href="mailto:dannchoi@cisco.com">dannchoi@cisco.com</a>> wrote:<br>
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<div>Hi,</div>
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</div>
<div>In a multinode setup, there are 3 networks.</div>
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<ul>
<li>Management Network: Controller, Compute and Network</li><li>VM traffic Network: Compute and Network</li><li>External Network: Controller and Network</li></ul>
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<div>When pinging the VM at the Compute node from the Neutron router (via ip netns exec qrouter namespace),</div>
<div>which network is used?</div>
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<div>Thanks,</div>
<div>Danny</div>
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