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Merge pull request #7647 from ton31337/feature/show_best_path_reason_in_show_bgp

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bgpd: Show best path reason in JSON output for `show bgp` command
This commit is contained in:
Donald Sharp 2020-12-02 06:52:30 -05:00 committed by GitHub
commit c9d9d82dd4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 61 additions and 57 deletions
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118
bgpd/bgp_route.c
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@ -8072,6 +8072,62 @@ enum bgp_display_type {
normal_list,
};
static const char *
bgp_path_selection_reason2str(enum bgp_path_selection_reason reason)
{
switch (reason) {
case bgp_path_selection_none:
return "Nothing to Select";
case bgp_path_selection_first:
return "First path received";
case bgp_path_selection_evpn_sticky_mac:
return "EVPN Sticky Mac";
case bgp_path_selection_evpn_seq:
return "EVPN sequence number";
case bgp_path_selection_evpn_lower_ip:
return "EVPN lower IP";
case bgp_path_selection_evpn_local_path:
return "EVPN local ES path";
case bgp_path_selection_evpn_non_proxy:
return "EVPN non proxy";
case bgp_path_selection_weight:
return "Weight";
case bgp_path_selection_local_pref:
return "Local Pref";
case bgp_path_selection_local_route:
return "Local Route";
case bgp_path_selection_confed_as_path:
return "Confederation based AS Path";
case bgp_path_selection_as_path:
return "AS Path";
case bgp_path_selection_origin:
return "Origin";
case bgp_path_selection_med:
return "MED";
case bgp_path_selection_peer:
return "Peer Type";
case bgp_path_selection_confed:
return "Confed Peer Type";
case bgp_path_selection_igp_metric:
return "IGP Metric";
case bgp_path_selection_older:
return "Older Path";
case bgp_path_selection_router_id:
return "Router ID";
case bgp_path_selection_cluster_length:
return "Cluser length";
case bgp_path_selection_stale:
return "Path Staleness";
case bgp_path_selection_local_configured:
return "Locally configured route";
case bgp_path_selection_neighbor_ip:
return "Neighbor IP";
case bgp_path_selection_default:
return "Nothing left to compare";
}
return "Invalid (internal error)";
}
/* Print the short form route status for a bgp_path_info */
static void route_vty_short_status_out(struct vty *vty,
struct bgp_path_info *path,
@ -8100,8 +8156,12 @@ static void route_vty_short_status_out(struct vty *vty,
if (CHECK_FLAG(path->flags, BGP_PATH_DAMPED))
json_object_boolean_true_add(json_path, "damped");
if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED))
if (CHECK_FLAG(path->flags, BGP_PATH_SELECTED)) {
json_object_boolean_true_add(json_path, "bestpath");
json_object_string_add(json_path, "selectionReason",
bgp_path_selection_reason2str(
path->net->reason));
}
if (CHECK_FLAG(path->flags, BGP_PATH_MULTIPATH))
json_object_boolean_true_add(json_path, "multipath");
@ -9254,62 +9314,6 @@ static void route_vty_out_tx_ids(struct vty *vty,
}
}
static const char *bgp_path_selection_reason2str(
enum bgp_path_selection_reason reason)
{
switch (reason) {
case bgp_path_selection_none:
return "Nothing to Select";
case bgp_path_selection_first:
return "First path received";
case bgp_path_selection_evpn_sticky_mac:
return "EVPN Sticky Mac";
case bgp_path_selection_evpn_seq:
return "EVPN sequence number";
case bgp_path_selection_evpn_lower_ip:
return "EVPN lower IP";
case bgp_path_selection_evpn_local_path:
return "EVPN local ES path";
case bgp_path_selection_evpn_non_proxy:
return "EVPN non proxy";
case bgp_path_selection_weight:
return "Weight";
case bgp_path_selection_local_pref:
return "Local Pref";
case bgp_path_selection_local_route:
return "Local Route";
case bgp_path_selection_confed_as_path:
return "Confederation based AS Path";
case bgp_path_selection_as_path:
return "AS Path";
case bgp_path_selection_origin:
return "Origin";
case bgp_path_selection_med:
return "MED";
case bgp_path_selection_peer:
return "Peer Type";
case bgp_path_selection_confed:
return "Confed Peer Type";
case bgp_path_selection_igp_metric:
return "IGP Metric";
case bgp_path_selection_older:
return "Older Path";
case bgp_path_selection_router_id:
return "Router ID";
case bgp_path_selection_cluster_length:
return "Cluser length";
case bgp_path_selection_stale:
return "Path Staleness";
case bgp_path_selection_local_configured:
return "Locally configured route";
case bgp_path_selection_neighbor_ip:
return "Neighbor IP";
case bgp_path_selection_default:
return "Nothing left to compare";
}
return "Invalid (internal error)";
}
static void route_vty_out_detail_es_info(struct vty *vty,
struct bgp_path_info *pi,
struct attr *attr,