diff options
| author | Josh Bailey <joshb@google.com> | 2011-07-20 20:45:12 -0700 |
|---|---|---|
| committer | Josh Bailey <joshb@google.com> | 2011-07-20 20:45:12 -0700 |
| commit | 96450faf3385a6ed9f4dd5c2c58776c4a664a8da (patch) | |
| tree | 26c56a71548686a7d6797b79377ccc5e25730186 /bgpd/bgp_mpath.h | |
| parent | 42ea68512fc4d04b500def45e8f899321f4081e7 (diff) | |
bgpd: Adds equal-paths check to path comparison. Paths that are
equal to the best path are accumulated onto an ordered list (mp_list)
if maximum-paths is configured. A future commit will add the
multipath markup to the BGP rib table based on the mp_list. Add
unit test for the added mp_list functions.
Deterministic MED is not supported in this commit, it will be
added later.
* bgpd/bgp_aspath.c
* Make aspath_cmp() an external symbol so it can be used in
equivalent paths check
* bgpd/bgp_aspath.h
* Add extern declaration of aspath_cmp()
* bgpd/bgp_mpath.c
* bgp_info_nexthop_cmp(): Compares nexthops of two paths
* bgp_info_mpath_cmp(): Compare function to order multipaths by
nexthop and then by peer address
* bgp_mp_list_init(): Initialize a list with the multipath order function
* bgp_mp_list_clear(): Clear out the mp_list
* bgp_mp_list_add(): Add a multipath to mp_list
* bgpd/bgp_mpath.h
* External declarations for above added functions in bgp_mpath.c
* bgpd/bgp_route.c
* bgp_info_cmp(): Add equivalent paths result (paths_eq). If eBGP
paths are equal down to IGP metric check, flag as equal if peer AS
matches. Similarly for iBGP paths but compare full AS_PATH.
* bgp_best_selection(): If multipath is enabled, accumulate equivalent paths
in mp_list. Add debug bgp event output to see result (will be filtered
later to display only when change occurs)
* bgp_process_rsclient(): Pass multipath config to bgp_best_selection()
* bgp_process_main(): Pass multipath config to bgp_best_selection()
* tests/bgp_mpath_test.c
* Add unit test case for bgp_mp_list functions
Diffstat (limited to 'bgpd/bgp_mpath.h')
| -rw-r--r-- | bgpd/bgp_mpath.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/bgpd/bgp_mpath.h b/bgpd/bgp_mpath.h index f0ac8367..de6461fd 100644 --- a/bgpd/bgp_mpath.h +++ b/bgpd/bgp_mpath.h @@ -31,4 +31,11 @@ extern int bgp_maximum_paths_set (struct bgp *, afi_t, safi_t, int, u_int16_t); extern int bgp_maximum_paths_unset (struct bgp *, afi_t, safi_t, int); +/* Functions used by bgp_best_selection to record current + * multipath selections + */ +extern void bgp_mp_list_init (struct list *); +extern void bgp_mp_list_clear (struct list *); +extern void bgp_mp_list_add (struct list *, struct bgp_info *); + #endif /* _QUAGGA_BGP_MPATH_H */ |