DVR: Why a router namespace on NW node?

asked 2017-01-12 18:28:24 -0600

updated 2017-01-12 18:38:31 -0600

When deploying a non-HA DVR, a router namespace is created on the same network node that also contains a router's SNAT namespace. It looks very much like the corresponding router namespaces on compute nodes, except that it has no FIP connection.

The namespace is created as soon as a port is added to the router - either gateway or normal interface.

The networking guide just says that "it serves no purpose in this case" (i.e., the SNAT case).

So, what purpose does it serve?

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