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SNMP Contact Loss Since Upgrade of EXOS Device

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TitleSNMP Contact Loss Since Upgrade of EXOS Device
  • Switch shows down in Inventory Manager
  • Inventory Manager error "no contact to device"
  • Summit: X460
  • NetSight: Inventory Manager
  • EXOS:
Telnet disabled
No SSH module installed
  1. Enable Telnet or
  2. Install and enable SSH specific to the EXOS version currently running
  3. Restart snmpMaster process
    1. restart process snmpmaster
Additional notes
NetSight NMS utilizes Telnet and SSH when polling devices via SNMP (telnet via SNMPv1 & v2, SSH via SNMP v3).  If telnet is disabled SSH must be installed, enabled, and active.  If utilizing SSH; it is necessary to install the SSH module specific to the upgraded EXOS version. 

If unfamiliar with how to obtain, install and enable SSH please use the following link: How to obtain and install SSH module



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