Inventory collection failed, LMS 3.2

[ESSergachev]

Hi.

There is the failure of the Inventory collection on switch with the following message in RME job log:
"Transport session to device failed. Cause: Authentication failed on device." , but at the same time everything is OK with snmpwalk running from Device center :

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The following is a SNMP walk of device 172.19.64.11 starting from .1.3.6.1.2.1.1.5

SNMP Walk Output
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.1.3.6.1.2.1.1.5

RFC1213-MIB::sysName.0 = STRING: "ENG-av3560-avid-u1.sys.tv-news.lan"
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Snmp timeout value = 10sec.

Could you explain the reason of this and could you help me to solve the problem?

[Joe Clarke]

Just because you can make SNMP Walk work does not mean the SNMP credentials are correct in DCR.  Start a sniffer trace filtering on SNMP (udp/161) traffic to this device, then perform an inventory collection for it.  The trace file should show why the failure is occurring.

[ESSergachev]

Debug snmp headers on switch show the legal string when Inventory collection job active.

[Joe Clarke]

Then go to Common Services > Device and Credentials > Device Management, select this device, and click the Edit Credentials button.  Re-enter the SNMP credentials for this device.