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L3VPN: BGP/MPLS VPNs using MPLS backbone

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The L3VPN protocol implements RFC 4364 BGP/MPLS VPNs using MPLS backbone.
It works similarly to pipe. It connects IP table (one per VRF) with (global)
VPN table. Routes passed from VPN table to IP table are stripped of RD and
filtered by import targets, routes passed in the other direction are extended
with RD, MPLS labels and export targets in extended communities. A separate
MPLS channel is used to announce MPLS routes for the labels.
This commit is contained in:
Ondrej Zajicek
2022-10-03 20:06:13 +02:00
parent 9ca86ef69c
commit bcff3ae79a
10 changed files with 636 additions and 5 deletions
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7
filter/config.Y
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@@ -387,7 +387,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
%type <ecs> ec_kind
%type <fret> break_command
%type <i32> cnum
%type <e> pair_item ec_item lc_item set_item switch_item set_items switch_items switch_body
%type <e> pair_item ec_item lc_item set_item switch_item ec_items set_items switch_items switch_body
%type <trie> fprefix_set
%type <v> set_atom switch_atom fipa
%type <px> fprefix
@@ -716,6 +716,11 @@ switch_item:
| switch_atom DDOT switch_atom { $$ = f_new_item($1, $3); }
;
ec_items:
ec_item
| ec_items ',' ec_item { $$ = f_merge_items($1, $3); }
;
set_items:
set_item
| set_items ',' set_item { $$ = f_merge_items($1, $3); }