Comment 5 for bug 1350639

Neutron L3 feature affects both router and floating IP features, so the situation is a bit complicated. There are two cases.
(1) Neutron does not provide L3 features (due to a backend plugin configuration)
(2) Neutron provides L3 features but a deployer wants to disable Horizon Router panel.

For case (1), we can know whether L3 feature is provided through Neutron extension list API. Note that the configuration depends on backend neutron plugins and deployers cannot control it without modifying the code. bug 1292022 reports this case.

For case (2), Horizon need a configuration for this. The comment from Shuichiro is talking about this case.

BTW, do you want to disable floating IP feature too?