vrf: dynamic routing is now supported - document this

1 files changed, 17 insertions, 146 deletions

diff --git a/docs/configuration/vrf/index.rst b/docs/configuration/vrf/index.rst
index 244784de..cd7f3d54 100644
--- a/docs/configuration/vrf/index.rst
+++ b/docs/configuration/vrf/index.rst
@@ -14,7 +14,6 @@ in the very least need different default gateways.
    different then they are implemented and handled right now - please feedback
    via a task created in Phabricator_.
 
-
 Configuration
 =============
 
@@ -58,157 +57,29 @@ itself needs to be assigned to an interface.
 Routing
 -------
 
-Static
-^^^^^^
-
-Static routes are manually configured routes, which, in general, cannot be
-updated dynamically from information VyOS learns about the network topology from
-other routing protocols. However, if a link fails, the router will remove
-routes, including static routes, from the :abbr:`RIPB (Routing Information
-Base)` that used this interface to reach the next hop. In general, static
-routes should only be used for very simple network topologies, or to override
-the behavior of a dynamic routing protocol for a small number of routes. The
-collection of all routes the router has learned from its configuration or from
-its dynamic routing protocols is stored in the RIB. Unicast routes are directly
-used to determine the forwarding table used for unicast packet forwarding.
-
-Static Routes
-"""""""""""""
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> next-hop <address>
-
-   Configure next-hop `<address>` for an IPv4 static route in the VRF identified
-   by `<name>`. Multiple static routes can be created.
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> next-hop <address>
-   disable
-
-   Disable IPv4 static route entry in the VRF identified by `<name>`
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> next-hop <address>
-   distance <distance>
-
-   Defines next-hop distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
-
-   Range is 1 to 255, default is 1.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> next-hop <address>
-
-   Configure next-hop `<address>` for an IPv6 static route in the VRF identified
-   by `<name>`. Multiple IPv6 static routes can be created.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> next-hop <address>
-   disable
-
-   Disable IPv6 static route entry in the VRF identified by `<name>`.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> next-hop <address>
-   distance <distance>
-
-   Defines next-hop distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
-
-   Range is 1 to 255, default is 1.
-
-   .. note:: Routes with a distance of 255 are effectively disabled and not
-      installed into the kernel.
-
-
-Leaking
-"""""""
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> next-hop <address>
-   vrf <default | vrf-name>
-
-   Use this command if you have shared services or routes that should be shared
-   between multiple VRF instances. This will add an IPv4 route to VRF `<name>`
-   routing table to reach a `<subnet>` via a next-hop gatewys `<address>` in
-   a different VRF or leak it into the default VRF.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> next-hop <address>
-   vrf <default | vrf-name>
-
-   Use this command if you have shared services or routes that should be shared
-   between multiple VRF instances. This will add an IPv6 route to VRF `<name>`
-   routing table to reach a `<subnet>` via a next-hop gatewys `<address>` in
-   a different VRF or leak it into the default VRF.
-
-
-Interface Routes
-""""""""""""""""
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet>
-   interface <interface>
-
-   Allows you to configure the next-hop interface for an interface-based IPv4
-   static route. `<interface>` will be the next-hop interface where trafic is
-   routed for the given `<subnet>`.
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet>
-   interface <interface> disable
-
-   Disables interface-based IPv4 static route.
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet>
-   interface <interface> distance <distance>
-
-   Defines next-hop distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
-
-   Range is 1 to 255, default is 1.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet>
-   interface <interface>
-
-   Allows you to configure the next-hop interface for an interface-based IPv6
-   static route. `<interface>` will be the next-hop interface where trafic is
-   routed for the given `<subnet>`.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet>
-   interface <interface> disable
-
-   Disables interface-based IPv6 static route.
-
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet>
-   interface <interface> distance <distance>
-
-   Defines next-hop distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
-
-   Range is 1 to 255, default is 1.
-
-Blackhole
-"""""""""
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> blackhole
-
-   Use this command to configure a "black-hole" route on the router. A
-   black-hole route is a route for which the system silently discard packets
-   that are matched. This prevents networks leaking out public interfaces, but
-   it does not prevent them from being used as a more specific route inside your
-   network.
-
-.. cfgcmd:: set protocols vrf <name> static route <subnet> blackhole distance
-   <distance>
+.. note:: VyOS 1.4 (sagitta) introduced dynamic routing support for VRFs.
 
-   Defines blackhole distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
+Currently dynamic routing is supported for the following protocols:
 
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> blackhole
+- :ref:`routing-bgp`
+- :ref:`routing-isis`
+- :ref:`routing-ospf`
+- :ref:`routing-static`
 
-   Use this command to configure a "black-hole" route on the router. A
-   black-hole route is a route for which the system silently discard packets
-   that are matched. This prevents networks leaking out public interfaces, but
-   it does not prevent them from being used as a more specific route inside your
-   network.
+The CLI configuration the same as mentioned in above articles. The only
+difference is, that each routing protocol used, must be prefixed with the `vrf
+name <name>` command.
 
-.. cfgcmd:: set protocols vrf <name> static route6 <subnet> blackhole distance
-   <distance>
+Example
+^^^^^^^
 
-   Defines blackhole distance for this route, routes with smaller administrative
-   distance are elected prior those with a higher distance.
+The following commands would be required to set options ofr a given dynamic
+routing protocol inside a given vrf:
 
+- :ref:`routing-bgp`: ``set vrf name <name> protocols bgp ...``
+- :ref:`routing-isis`: ``set vrf name <name> protocols isis ...``
+- :ref:`routing-ospf`: ``set vrf name <name> protocols ospf ...``
+- :ref:`routing-static`: ``set vrf name <name> protocols static ...``
 
 Operation
 =========