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bgpd: Display default local preference and local AS for BGP show commands

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1. "show bgp ipv4/ipv6 [json]"
2. "show bgp ipv4/ipv6 neighbor <peer> routes [json]"
3. "show bgp ipv4/ipv6 neighbors <peer> advertised-routes [json]"

In the above show commands, when a BGP path is displayed, we do not display the
local preference if it is EBGP route. Route calculation assumes the default
local preference. But, we can change the default local preference using
configuration in FRR. In this case, user should know the default local
preference value that is being used in the route calculation. Thus, adding a
new field 'default local preferece' in the show commands where a BGP path is
displayed.

When a BGP path is displayed in the above show commands, as-path does not
include the local AS. So, user has to execute another show command to display
the local-AS. To avoid this, adding a new field local-AS to above show commands.

Signed-off-by: Ameya Dharkar <adharkar@vmware.com>
This commit is contained in:
Ameya Dharkar 2018-11-02 14:40:44 -07:00
parent 60e2b4f566
commit 01eced229d
1 changed files with 37 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
bgpd/bgp_route.c
View File

@ -8427,12 +8427,14 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
if (use_json && !*json_header_depth) {
vty_out(vty,
"{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
",\n \"routerId\": \"%s\",\n \"routes\": { ",
",\n \"routerId\": \"%s\",\n \"defaultLocPrf\": %u,\n"
" \"localAS\": %u,\n \"routes\": { ",
bgp->vrf_id == VRF_UNKNOWN ? -1 : (int)bgp->vrf_id,
bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT
? VRF_DEFAULT_NAME
: bgp->name,
table->version, inet_ntoa(bgp->router_id));
table->version, inet_ntoa(bgp->router_id),
bgp->default_local_pref, bgp->as);
*json_header_depth = 2;
if (rd) {
vty_out(vty, " \"routeDistinguishers\" : {");
@ -8599,6 +8601,9 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
else
vty_out(vty, "%u", bgp->vrf_id);
vty_out(vty, "\n");
vty_out(vty, "Default local pref %u, ",
bgp->default_local_pref);
vty_out(vty, "local AS %u\n", bgp->as);
vty_out(vty, BGP_SHOW_SCODE_HEADER);
vty_out(vty, BGP_SHOW_NCODE_HEADER);
vty_out(vty, BGP_SHOW_OCODE_HEADER);
@ -10454,6 +10459,9 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
table->version);
json_object_string_add(json, "bgpLocalRouterId",
inet_ntoa(bgp->router_id));
json_object_int_add(json, "defaultLocPrf",
bgp->default_local_pref);
json_object_int_add(json, "localAS", bgp->as);
json_object_object_add(json, "bgpStatusCodes",
json_scode);
json_object_object_add(json, "bgpOriginCodes",
@ -10470,6 +10478,9 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
else
vty_out(vty, "%u", bgp->vrf_id);
vty_out(vty, "\n");
vty_out(vty, "Default local pref %u, ",
bgp->default_local_pref);
vty_out(vty, "local AS %u\n", bgp->as);
vty_out(vty, BGP_SHOW_SCODE_HEADER);
vty_out(vty, BGP_SHOW_NCODE_HEADER);
vty_out(vty, BGP_SHOW_OCODE_HEADER);
@ -10497,6 +10508,11 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
"bgpLocalRouterId",
inet_ntoa(
bgp->router_id));
json_object_int_add(json,
"defaultLocPrf",
bgp->default_local_pref);
json_object_int_add(json,
"localAS", bgp->as);
json_object_object_add(
json, "bgpStatusCodes",
json_scode);
@ -10515,6 +10531,11 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
vty_out(vty, "%u",
bgp->vrf_id);
vty_out(vty, "\n");
vty_out(vty,
"Default local pref %u, ",
bgp->default_local_pref);
vty_out(vty, "local AS %u\n",
bgp->as);
vty_out(vty,
BGP_SHOW_SCODE_HEADER);
vty_out(vty,
@ -10576,6 +10597,13 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
"bgpLocalRouterId",
inet_ntoa(
bgp->router_id));
json_object_int_add(
json, "defaultLocPrf",
bgp->default_local_pref
);
json_object_int_add(
json, "localAS",
bgp->as);
json_object_object_add(
json,
"bgpStatusCodes",
@ -10601,6 +10629,13 @@ static void show_adj_route(struct vty *vty, struct peer *peer, afi_t afi,
"%u",
bgp->vrf_id);
vty_out(vty, "\n");
vty_out(vty,
"Default local pref %u, ",
bgp->default_local_pref
);
vty_out(vty,
"local AS %u\n",
bgp->as);
vty_out(vty,
BGP_SHOW_SCODE_HEADER);
vty_out(vty,