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Add remote dpu db to bfdmon. #22705

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Add remote dpu db to bfdmon. #22705

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751cf1b
Add remote dpu db to bfdmon.
dypet May 26, 2025
66f61b8
Connect to DB by name.
dypet May 27, 2025
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22 changes: 19 additions & 3 deletions src/sonic-bgpcfgd/bfdmon/bfdmon.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import time
import syslog
from swsscommon import swsscommon
from sonic_py_common import device_info
from sonic_py_common.general import getstatusoutput_noshell

class BfdFrrMon:
Expand All @@ -18,6 +19,15 @@ def __init__(self):
self.init_done = False
self.MAX_RETRY_ATTEMPTS = 3

self.remote_status_table = "DASH_BFD_PROBE_STATE"
switch_type = device_info.get_localhost_info("switch_type")
if switch_type and switch_type == "dpu":
self.remote_db_connector = swsscommon.DBConnector("DPU_STATE_DB", 0, True)
self.remote_table = swsscommon.Table(self.remote_db_connector, self.remote_status_table)
else:
self.remote_db_connector = None
self.remote_table = None

def check_bfdd(self):
"""
Check if bfdd is running.
Expand Down Expand Up @@ -73,7 +83,7 @@ def get_bfd_sessions(self):
self.frr_v6_peers.add(session["peer"])
else: # IPv4
self.frr_v4_peers.add(session["peer"])
return True
return True
except json.JSONDecodeError as e:
# Log the exception and retry if within the maximum attempts
retry_attempt += 1
Expand Down Expand Up @@ -113,14 +123,20 @@ def update_state_db(self):

# Update Redis with the new peer sets
values = [
("v4_bfd_up_sessions", json.dumps(list(self.local_v4_peers))),
("v6_bfd_up_sessions", json.dumps(list(self.local_v6_peers)))
("v4_bfd_up_sessions", json.dumps(list(self.local_v4_peers)).strip("[]")),
("v6_bfd_up_sessions", json.dumps(list(self.local_v6_peers)).strip("[]"))
]
self.table.set("", values)
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Do we need to write into both STATE_DB/DPU_BFD_PROBE_STATE and DPU_STATE_DB/DASH_BFD_PROBE_STATE? The former is for DPU and the data format is for hamgrd to consume. Since hamgrd will use the latter. I see no need to have the first.

syslog.syslog(syslog.LOG_INFO,
"{} table in STATE_DB updated. v4_peers: {}, v6_peers: {}".format(
self.status_table, self.local_v4_peers, self.local_v6_peers))

if self.remote_table:
self.remote_table.set("", values)
syslog.syslog(syslog.LOG_INFO,
"{} table in DPU_STATE_DB updated. v4_peers: {}, v6_peers: {}".format(
self.remote_status_table, self.local_v4_peers, self.local_v6_peers))

self.init_done = True

def main():
Expand Down
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