From 5aebce5e0cc59c4c8459ab92a201df5868f46e7a Mon Sep 17 00:00:00 2001
From: Alexander Zubkov <green@qrator.net>
Date: Tue, 18 Oct 2022 04:25:29 +0200
Subject: [PATCH] Doc: Add documentation for "show route (import|export) table"

---
 doc/bird.sgml | 7 ++++++-
 nest/config.Y | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/doc/bird.sgml b/doc/bird.sgml
index 3dc1e294..c78b8300 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1113,7 +1113,7 @@ This argument can be omitted if there exists only a single instance.
 	Show the list of symbols defined in the configuration (names of
 	protocols, routing tables etc.).
 
-	<tag><label id="cli-show-route">show route [[for] <m/prefix/|<m/IP/] [table (<m/t/ | all)] [filter <m/f/|where <m/c/] [(export|preexport|noexport) <m/p/] [protocol <m/p/] [(stats|count)] [<m/options/]</tag>
+	<tag><label id="cli-show-route">show route [[for] <m/prefix/|<m/IP/] [table (<m/t/ | all)] [(import|export) table <m/p/.<m/c/] [filter <m/f/|where <m/c/] [(export|preexport|noexport) <m/p/] [protocol <m/p/] [(stats|count)] [<m/options/]</tag>
 	Show contents of specified routing tables, that is routes, their metrics
 	and (in case the <cf/all/ switch is given) all their attributes.
 
@@ -1133,6 +1133,11 @@ This argument can be omitted if there exists only a single instance.
 	Last, the set of default tables is used: <cf/master4/, <cf/master6/ and
 	each first table of any other network type.
 
+	<p>There are internal tables when <cf/(import|export) table/ options
+	are used for some channels. They can be selected explicitly with
+	<cf/(import|export) table/ switch, specifying protocol <m/p/ and
+	channel name <m/c/.
+
 	<p>You can also ask for printing only routes processed and accepted by
 	a given filter (<cf>filter <m/name/</cf> or <cf>filter { <m/filter/ }
 	</cf> or matching a given condition (<cf>where <m/condition/</cf>).
diff --git a/nest/config.Y b/nest/config.Y
index a91fd976..b2aa0906 100644
--- a/nest/config.Y
+++ b/nest/config.Y
@@ -632,7 +632,7 @@ CF_CLI(SHOW INTERFACES SUMMARY,,, [[Show summary of network interfaces]])
 { if_show_summary(); } ;
 
 CF_CLI_HELP(SHOW ROUTE, ..., [[Show routing table]])
-CF_CLI(SHOW ROUTE, r_args, [[[<prefix>|for <prefix>|for <ip>] [table <t>] [filter <f>|where <cond>] [all] [primary] [filtered] [(export|preexport|noexport) <p>] [protocol <p>] [stats|count]]], [[Show routing table]])
+CF_CLI(SHOW ROUTE, r_args, [[[<prefix>|for <prefix>|for <ip>] [table <t>] [(import|export) table <p>.<c>] [filter <f>|where <cond>] [all] [primary] [filtered] [(export|preexport|noexport) <p>] [protocol <p>] [stats|count]]], [[Show routing table]])
 { rt_show($3); } ;
 
 r_args: