feat: flip swap mechanism — MD as primary, RST as override (Phase 1)

This is the first of three phases inverting the per-page swap mechanism
so MD becomes the canonical primary and RST becomes the rare override.

Phase 1 — file renames + conf.py exclude_patterns flip only:
- Rename docs/**/md-<stem>.md to docs/**/<stem>.md (drop md- prefix)
  for all 254 stems previously listed in docs/_swap.txt
- Rename docs/**/<stem>.rst to docs/**/rst-<stem>.rst (add rst- prefix)
  for the same 254 stems
- Repurpose docs/_swap.txt as docs/_rst_overrides.txt; initially empty
  comment-only since no pages need the RST fallback right now
- conf.py exclude_patterns flipped: rst-*.rst is now excluded by default
  instead of md-*.md
- conf.py runtime-artifact references updated to _rst_override_state.json
  and _md_exclude.txt (Phase 2 will rewrite swap_sources.py to produce
  these names; for now no swap script runs because overrides list is empty)

Phase 2 (next commit on this branch) will rewrite scripts/swap_sources.py
with inverted rename direction, delete scripts/import_myst.py + tests, and
update tests/test_swap_sources.py for the new semantics.

Phase 3 will be the cleanup pass and ready-for-review flip.

Generated by robots https://vyos.io

1 files changed, 298 insertions, 0 deletions

diff --git a/docs/configuration/protocols/static.md b/docs/configuration/protocols/static.md
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+(routing-static)=
+
+# 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.
+
+## IPv4 Unicast Routes
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\>
+
+Configure next-hop *\<address\>* for an IPv4 static route. Multiple static
+routes can be created.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\> disable
+
+Disable this IPv4 static route entry.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\> distance \<distance\>
+
+Defines next-hop distance for this route, routes with smaller administrative
+distance are elected prior to 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.
+:::
+```
+
+
+### IPv4 Interface Routes
+
+```{cfgcmd} set protocols 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 traffic is
+routed for the given *\<subnet\>*.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> interface \<interface\> disable
+
+Disables interface-based IPv4 static route.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> interface \<interface\> distance \<distance\>
+
+Defines next-hop distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+
+Range is 1 to 255, default is 1.
+```
+
+
+### IPv4 BFD
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\> bfd
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\> bfd profile \<profile\>
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address with BFD profile *\<profile\>*.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> next-hop \<address\> bfd multi-hop source-address \<source-address\>
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address with source address
+*\<source\>* but initiate a multi-hop session.
+```
+
+
+### DHCP Interface Routes
+
+```{cfgcmd} set protocols static route \<subnet\> dhcp-interface \<interface\>
+
+Defines route with DHCP interface supplying next-hop IP address.
+```
+
+
+### IPv4 Reject Routes
+
+```{cfgcmd} set protocol static route \<subnet\> reject
+
+Defines route which emits an ICMP unreachable when matched.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> reject distance \<distance\>
+
+Defines distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> reject tag \<tag\>
+
+Sets a tag for this route.
+```
+
+```{cfgcmd} set protocol static route6 \<subnet\> reject
+
+Defines route which emits an ICMP unreachable when matched.
+```
+
+
+### IPv4 Blackhole Routes
+
+```{cfgcmd} set protocols 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 static route \<subnet\> blackhole distance \<distance\>
+
+Defines blackhole distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+```
+
+```{cfgcmd} set protocols static route \<subnet\> blackhole tag \<tag\>
+
+Sets a tag for this route.
+```
+
+
+## IPv6 Unicast Routes
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\>
+
+Configure next-hop *\<address\>* for an IPv6 static route. Multiple static
+routes can be created.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> disable
+
+Disable this IPv6 static route entry.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> distance \<distance\>
+
+Defines next-hop distance for this route, routes with smaller administrative
+distance are elected prior to 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.
+:::
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> segments \<segments\>
+
+It is possible to specify a static route for ipv6 prefixes using an
+SRv6 segments instruction. The ``/`` separator can be used to specify
+multiple segment instructions.
+
+Example:
+
+:::{code-block} none
+set protocols static route6 2001:db8:1000::/36 next-hop 2001:db8:201::ffff segments '2001:db8:aaaa::7/2002::4/2002::3/2002::2'
+:::
+
+:::{code-block} none
+vyos@vyos:~$ show ipv6 route
+Codes: K - kernel route, C - connected, S - static, R - RIPng,
+      O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+      v - VNC, V - VNC-Direct, A - Babel, F - PBR,
+      f - OpenFabric,
+      > - selected route, * - FIB route, q - queued, r - rejected, b - backup
+      t - trapped, o - offload failure
+C>* 2001:db8:201::/64 is directly connected, eth0.201, 00:00:46
+S>* 2001:db8:1000::/36 [1/0] via 2001:db8:201::ffff, eth0.201, seg6 2001:db8:aaaa::7,2002::4,2002::3,2002::2, weight 1, 00:00:08
+:::
+```
+
+
+### IPv6 Interface Routes
+
+```{cfgcmd} set protocols 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 traffic is
+routed for the given *\<subnet\>*.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> interface \<interface\> disable
+
+Disables interface-based IPv6 static route.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> interface \<interface\> distance \<distance\>
+
+Defines next-hop distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+
+Range is 1 to 255, default is 1.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> interface \<interface\> segments \<segments\>
+
+It is possible to specify a static route for ipv6 prefixes using an
+SRv6 segments instruction. The ``/`` separator can be used to specify
+multiple segment instructions.
+
+Example:
+
+:::{code-block} none
+set protocols static route6 2001:db8:1000::/36 interface eth0 segments '2001:db8:aaaa::7/2002::4/2002::3/2002::2'
+:::
+```
+
+
+### IPv6 BFD
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> bfd
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> bfd profile \<profile\>
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address with BFD profile *\<profile\>*.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> next-hop \<address\> bfd multi-hop source-address \<source\>
+
+Configure a static route for *\<subnet\>* using gateway *\<address\>* and use the
+gateway address as BFD peer destination address with source address
+*\<source\>* but initiate a multi-hop session.
+```
+
+
+### IPv6 Reject Routes
+
+```{cfgcmd} set protocol static route6 \<subnet\> reject
+
+Defines route which emits an ICMP unreachable when matched.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> reject distance \<distance\>
+
+Defines distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> reject tag \<tag\>
+
+Sets a tag for this route.
+```
+
+
+### IPv6 Blackhole Routes
+
+```{cfgcmd} set protocols static route6 \<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 static route6 \<subnet\> blackhole distance \<distance\>
+
+Defines blackhole distance for this route, routes with smaller administrative
+distance are elected prior to those with a higher distance.
+```
+
+```{cfgcmd} set protocols static route6 \<subnet\> blackhole tag \<tag\>
+
+Sets a tag for this route.
+```
+
+
+## Alternate Routing Tables
+
+Alternate routing tables are used with policy based routing by utilizing
+{ref}`vrf`.