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No EDM Access After TDR Test Run On Port From EDM

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TitleNo EDM Access After TDR Test Run On Port From EDM
Symptoms
  • EDM (Enterprise Device Manager) access lost after TDR test (Time Domain Reflectometer) was run from EDM against port on switch
  • SNMP Receive Queue stuck/full at 200000 after EDM access is lost
ERS#show ip netstat
Proto Recv-Q Send-Q Local Address Foreign Address State
----- ------ ------ --------------------- --------------------- -----------
TCP 0 0 0.0.0.0.22 0.0.0.0.0 LISTEN
UDP 200000 0 0.0.0.0.161 0.0.0.0.0
UDP 0 0 0.0.0.0.3799 0.0.0.0.0
UDP 0 0 0.0.0.0.514 0.0.0.0.0
UDP 0 0 0.0.0.0.514 0.0.0.0.0
UDP 0 0 0.0.0.0.162 0.0.0.0.0
----------------------------------------------------------------------------
Proto Port Service
----- ----- -------
TCP 22 SSH
UDP 161 SNMP
UDP 3490 RADIUS
UDP 3491 RADIUS
  • No USB drive connected to switch
Environment
  • ERS 4850GTS-PWR+
  • Releases 5.12.2.301 and 5.12.3.011
Cause
Software defect ERS454800-3087
Resolution
Resolved in 5.12.5 release
Additional notes
  • Switch also being polled by (2) SNMP applications
    • XMC polling defaults MIBs loaded in XMC every 5 minutes
    • Centreon is polling standard MIB-2 info every minute

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