static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
{
+ struct listnode *node, *nnode;
struct connected *ifc;
+ struct peer *peer;
struct bgp *bgp;
+ struct prefix *addr;
bgp = bgp_lookup_by_vrf_id(vrf_id);
bgp_connected_delete(bgp, ifc);
}
+ addr = ifc->address;
+
+ if (bgp) {
+ /*
+ * When we are using the v6 global as part of the peering
+ * nexthops and we are removing it, then we need to
+ * clear the peer data saved for that nexthop and
+ * cause a re-announcement of the route. Since
+ * we do not want the peering to bounce.
+ */
+ for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
+ afi_t afi;
+ safi_t safi;
+
+ if (addr->family == AF_INET)
+ continue;
+
+ if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6)
+ && memcmp(&peer->nexthop.v6_global,
+ &addr->u.prefix6, 16)
+ == 0) {
+ memset(&peer->nexthop.v6_global, 0, 16);
+ FOREACH_AFI_SAFI (afi, safi)
+ bgp_announce_route(peer, afi, safi,
+ true);
+ }
+ }
+ }
+
connected_free(&ifc);
return 0;