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Workaround non-cisco switch crash

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Querying Cisco MIB on certain
firmware levels of non-cisco switches
causes a crash.  Tolerate and
wait a bit to give SNMP a chance to restart.
This commit is contained in:
Jarrod Johnson 2021-03-10 09:51:05 -05:00
parent 1a7c238b54
commit c53e758170
1 changed files with 11 additions and 6 deletions
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17
confluent_server/confluent/networking/macmap.py
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@ -217,13 +217,18 @@ def _map_switch_backend(args):
*([int(x) for x in oid[-6:]])
)
mactobridge[macaddr] = int(bridgeport)
#ciscoiftovlanmap = {}
vlanstocheck = set([])
for vb in conn.walk('.1.3.6.1.4.1.9.9.68.1.2.2.1.2'):
vlanstocheck.add(vb[1])
#ciscotrunktovlanmap = {}
for vb in conn.walk('.1.3.6.1.4.1.9.9.46.1.6.1.1.5'):
vlanstocheck.add(vb[1])
try:
#ciscoiftovlanmap = {}
for vb in conn.walk('.1.3.6.1.4.1.9.9.68.1.2.2.1.2'):
vlanstocheck.add(vb[1])
#ciscotrunktovlanmap = {}
for vb in conn.walk('.1.3.6.1.4.1.9.9.46.1.6.1.1.5'):
vlanstocheck.add(vb[1])
except Exception:
# We might have crashed snmp on a non-cisco switch
# in such a case, delay 8 seconds to allow recovery to complete
eventlet.sleep(8)
if not vlanstocheck:
vlanstocheck.add(None)
bridgetoifmap = {}