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ospfd: flush type 5 when type 7 is removed

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When the ASBR stops announcing a prefix into the NSSA area, the LSA
type 7 is removed from the area. However the ABR is refreshing the
type 5 in its LSDB while removing the Type 7 LSA. Routers outside
the area do not get an update.

With this change the LSA type 5 is flushed from the LSDB and the
change is announced to routers outside the area

Signed-off-by: ckishimo <carles.kishimoto@gmail.com>
This commit is contained in:
ckishimo 2020-09-11 07:20:29 -07:00
parent a77bd0f4e6
commit a5f7319294
1 changed files with 9 additions and 0 deletions
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9
ospfd/ospf_abr.c
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@ -642,6 +642,15 @@ static int ospf_abr_translate_nssa(struct ospf_area *area, struct ospf_lsa *lsa)
old = ospf_external_info_find_lsa(area->ospf, &p); old = ospf_external_info_find_lsa(area->ospf, &p);
if (old) { if (old) {
/* Do not continue if type 5 LSA not approved */
if (!CHECK_FLAG(old->flags, OSPF_LSA_APPROVED)) {
if (IS_DEBUG_OSPF_NSSA)
zlog_debug(
"ospf_abr_translate_nssa(): LSA Id %s type 5 is not approved",
inet_ntoa(old->data->id));
return 1;
}
if (IS_DEBUG_OSPF_NSSA) if (IS_DEBUG_OSPF_NSSA)
zlog_debug( zlog_debug(
"ospf_abr_translate_nssa(): found old translated LSA Id %s, refreshing", "ospf_abr_translate_nssa(): found old translated LSA Id %s, refreshing",