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ospfd: Adding Debugs to dump OSPF DD Seqnumber

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Recently Lot of issues are seen in  OSPF adjacnecy establishements,
sessions was tear down because of DD Sequence Number mismatch.

adding Debugs to capture Master & slave generated sequence numbers.

Signed-off-by: Satheesh Kumar K <sathk@cumulusnetworks.com>
This commit is contained in:
Satheesh Kumar K 2019-11-07 22:00:33 -08:00
parent 53d19f2d6e
commit e6a22aeb42
2 changed files with 27 additions and 0 deletions
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7
ospfd/ospf_nsm.c
View file

@ -723,6 +723,13 @@ static void nsm_change_state(struct ospf_neighbor *nbr, int state)
nbr->dd_flags =
OSPF_DD_FLAG_I | OSPF_DD_FLAG_M | OSPF_DD_FLAG_MS;
if (CHECK_FLAG(oi->ospf->config, OSPF_LOG_ADJACENCY_DETAIL))
zlog_info(
"%s: Intializing [DD]: %s with seqnum:%x , flags:%x",
(oi->ospf->name) ? oi->ospf->name
: VRF_DEFAULT_NAME,
inet_ntoa(nbr->router_id), nbr->dd_seqnum,
nbr->dd_flags);
ospf_db_desc_send(nbr);
}

20
ospfd/ospf_packet.c
View file

@ -1357,6 +1357,14 @@ static void ospf_db_desc(struct ip *iph, struct ospf_header *ospfh,
/* Add event to thread. */
OSPF_NSM_EVENT_SCHEDULE(nbr, NSM_PacketReceived);
if (CHECK_FLAG(oi->ospf->config, OSPF_LOG_ADJACENCY_DETAIL))
zlog_info(
"%s:Packet[DD]: Neighbor %s state is %s, seq_num:0x%x, local:0x%x",
(oi->ospf->name) ? oi->ospf->name : VRF_DEFAULT_NAME,
inet_ntoa(nbr->router_id),
lookup_msg(ospf_nsm_state_msg, nbr->state, NULL),
ntohl(dd->dd_seqnum), nbr->dd_seqnum);
/* Process DD packet by neighbor status. */
switch (nbr->state) {
case NSM_Down:
@ -3825,6 +3833,12 @@ void ospf_db_desc_send(struct ospf_neighbor *nbr)
ospf_packet_free(nbr->last_send);
nbr->last_send = ospf_packet_dup(op);
monotime(&nbr->last_send_ts);
if (CHECK_FLAG(oi->ospf->config, OSPF_LOG_ADJACENCY_DETAIL))
zlog_info(
"%s:Packet[DD]: %s DB Desc send with seqnum:%x , flags:%x",
(oi->ospf->name) ? oi->ospf->name : VRF_DEFAULT_NAME,
inet_ntoa(nbr->router_id), nbr->dd_seqnum,
nbr->dd_flags);
}
/* Re-send Database Description. */
@ -3839,6 +3853,12 @@ void ospf_db_desc_resend(struct ospf_neighbor *nbr)
/* Hook thread to write packet. */
OSPF_ISM_WRITE_ON(oi->ospf);
if (CHECK_FLAG(oi->ospf->config, OSPF_LOG_ADJACENCY_DETAIL))
zlog_info(
"%s:Packet[DD]: %s DB Desc resend with seqnum:%x , flags:%x",
(oi->ospf->name) ? oi->ospf->name : VRF_DEFAULT_NAME,
inet_ntoa(nbr->router_id), nbr->dd_seqnum,
nbr->dd_flags);
}
/* Send Link State Request. */