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SNMP contact lost to EXOS switch on fresh new EMC 8.04

  • 1.  SNMP contact lost to EXOS switch on fresh new EMC 8.04

    Posted 11-09-2017 10:52
    I have a fresh new EMC 8.0.4.54 installation.

    I have added new X460-G2 device using ZTP+ and everything was fine.
    However, after 5-6 minutes I have an "Contact lost" alarm.
    Device is fully IP-reachable: ping gives the response, "open device terminal" from EMC is working, I can also poll device with MIB Tools using default SNMPv3 creds.
    Both SNMP processes have "ready" status on the switch.
    EXOS is 22.3.1.4 patch1-4

    When I rebooted the EMC, then I have "Contact established" back.
    But after few minutes EMC lost the contact with the switch again.

    Looks like it is EMC issue.
    Any ideas ?


  • 2.  RE: SNMP contact lost to EXOS switch on fresh new EMC 8.04

    Posted 11-09-2017 12:47
    Robert, when you staged the switch did you change the poll type from ZTP to snmp? I'm not sure of people that use pool type ZTP right now.


  • 3.  RE: SNMP contact lost to EXOS switch on fresh new EMC 8.04

    Posted 11-09-2017 14:06
    I was only able to change the poll type AFTER ZTP+ stage, i.e when switch moved from "Discovered" to "Devices" tab. When editing device during ZTP+ pending edit stage, changing poll type made the "Save" button changed to "Enforce Preview", which made me confused (?).
    Anyway, snmp polling seems to be stable now.

    Thank you, Stephen!