diff options
| author | Donatas Abraitis <donatas@opensourcerouting.org> | 2025-03-25 17:20:56 +0200 |
|---|---|---|
| committer | Donatas Abraitis <donatas@opensourcerouting.org> | 2025-03-26 22:28:38 +0200 |
| commit | ec99be5d63818f15fa9f98c4c4c1cded8dc356a5 (patch) | |
| tree | fbe5fb0179cfae56cc63c547fdf79e039496810a | |
| parent | efa78f28ab0c156b76586bb427d49f5bdb600676 (diff) | |
bgpd: Retain the routes if we do a clear with N-bit set for Graceful-Restart
On receiving side we already did the job correctly, but the peer which initiates
the clear does not retain the other's routes. This commit fixes that.
Fixes: 20170775da3a3c5d41aba714d0c1d5a29b0da61c ("bgpd: Activate Graceful-Restart when receiving CEASE/HOLDTIME notifications")
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
| -rw-r--r-- | bgpd/bgp_packet.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c index edef77b845..c3c21628bc 100644 --- a/bgpd/bgp_packet.c +++ b/bgpd/bgp_packet.c @@ -1031,6 +1031,13 @@ static void bgp_notify_send_internal(struct peer_connection *connection, /* Add packet to peer's output queue */ stream_fifo_push(connection->obuf, s); + /* If Graceful-Restart N-bit (Notification) is exchanged, + * and it's not a Hard Reset, let's retain the routes. + */ + if (bgp_has_graceful_restart_notification(peer) && !hard_reset && + CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_MODE)) + SET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); + bgp_peer_gr_flags_update(peer); BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(peer->bgp, peer->bgp->peer); |