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bgpd: Enhance NHT path evaluation debugs

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Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
This commit is contained in:
vivek 2020-05-25 14:10:12 -07:00
parent 5f0c5ec85d
commit 9e15d76adf
1 changed files with 17 additions and 5 deletions
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22
bgpd/bgp_nht.c
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@ -44,6 +44,7 @@
#include "bgpd/bgp_zebra.h" #include "bgpd/bgp_zebra.h"
#include "bgpd/bgp_flowspec_util.h" #include "bgpd/bgp_flowspec_util.h"
#include "bgpd/bgp_evpn.h" #include "bgpd/bgp_evpn.h"
#include "bgpd/bgp_rd.h"
extern struct zclient *zclient; extern struct zclient *zclient;
@ -700,7 +701,7 @@ static void evaluate_paths(struct bgp_nexthop_cache *bnc)
char buf[PREFIX2STR_BUFFER]; char buf[PREFIX2STR_BUFFER];
bnc_str(bnc, buf, PREFIX2STR_BUFFER); bnc_str(bnc, buf, PREFIX2STR_BUFFER);
zlog_debug( zlog_debug(
"NH update for %s(%s) - flags 0x%x chgflags 0x%x - evaluate paths", "NH update for %s %s flags 0x%x chgflags 0x%x - evaluate paths",
buf, bnc->bgp->name_pretty, bnc->flags, buf, bnc->bgp->name_pretty, bnc->flags,
bnc->change_flags); bnc->change_flags);
} }
@ -757,11 +758,22 @@ static void evaluate_paths(struct bgp_nexthop_cache *bnc)
bgp_isvalid_nexthop(bnc) ? 1 : 0; bgp_isvalid_nexthop(bnc) ? 1 : 0;
} }
if (BGP_DEBUG(nht, NHT)) if (BGP_DEBUG(nht, NHT)) {
zlog_debug("%s: prefix %pRN (vrf %s) %svalid", __func__, char buf1[RD_ADDRSTRLEN];
rn, bgp_path->name,
(bnc_is_valid_nexthop ? "" : "not "));
if (rn->prn) {
prefix_rd2str((struct prefix_rd *)&rn->prn->p,
buf1, sizeof(buf1));
zlog_debug(
"... eval path %d/%d %pRN RD %s %s flags 0x%x",
afi, safi, rn, buf1,
bgp_path->name_pretty, path->flags);
} else
zlog_debug(
"... eval path %d/%d %pRN %s flags 0x%x",
afi, safi, rn, bgp_path->name_pretty,
path->flags);
}
if ((CHECK_FLAG(path->flags, BGP_PATH_VALID) ? 1 : 0) if ((CHECK_FLAG(path->flags, BGP_PATH_VALID) ? 1 : 0)
!= bnc_is_valid_nexthop) { != bnc_is_valid_nexthop) {
if (CHECK_FLAG(path->flags, BGP_PATH_VALID)) { if (CHECK_FLAG(path->flags, BGP_PATH_VALID)) {