diff options
Diffstat (limited to 'bgpd/bgp_route.c')
| -rw-r--r-- | bgpd/bgp_route.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c index 4542d0ec27..8ae74a008c 100644 --- a/bgpd/bgp_route.c +++ b/bgpd/bgp_route.c @@ -453,6 +453,7 @@ static int bgp_path_info_cmp(struct bgp *bgp, struct bgp_path_info *new, char exist_buf[PATH_ADDPATH_STR_BUFFER]; uint32_t new_mm_seq; uint32_t exist_mm_seq; + int nh_cmp; *paths_eq = 0; @@ -545,6 +546,28 @@ static int bgp_path_info_cmp(struct bgp *bgp, struct bgp_path_info *new, exist_mm_seq); return 0; } + + /* + * if sequence numbers are the same path with the lowest IP + * wins + */ + nh_cmp = bgp_path_info_nexthop_cmp(new, exist); + if (nh_cmp < 0) { + if (debug) + zlog_debug( + "%s: %s wins over %s due to same MM seq %u and lower IP %s", + pfx_buf, new_buf, exist_buf, new_mm_seq, + inet_ntoa(new->attr->nexthop)); + return 1; + } + if (nh_cmp > 0) { + if (debug) + zlog_debug( + "%s: %s loses to %s due to same MM seq %u and higher IP %s", + pfx_buf, new_buf, exist_buf, new_mm_seq, + inet_ntoa(new->attr->nexthop)); + return 0; + } } /* 1. Weight check. */ |