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Capture/Push Config using NCM SNMP/TFTP

  • 1.  Capture/Push Config using NCM SNMP/TFTP

    Posted 04-29-2017 10:17 AM

    Hello,

     

    I have problem to capture certain CISCO router configuration using SNMP/TFTP. The error as per below image:

    Can someone share how to resolve this. This happen only for the certain device.



  • 2.  Re: Capture/Push Config using NCM SNMP/TFTP

    Broadcom Employee
    Posted 04-29-2017 10:21 PM

    I have a couple of question about this problem:

    a) What device family does the device belong to?

    b) Are the capture of others devices from this same device family okay?

    c) Is there any overriding of the Local Communication Configuration on the device?

    d) Verify if the TFTP Directory has any lingering transfer file.

    e) A WireShark capture while attempting a capture need to be reviewed.

    f) Have you tried saving the Cisco configuration using SNMP manually?

    How to save configurations using SNMP | CiscoZine 

    https://supportforums.cisco.com/document/10046/how-copy-configuration-files-and-cisco-ios-routers-use-snmp 

    Get the Cisco configuration over SNMP | Just another CCIE 



  • 3.  Re: Capture/Push Config using NCM SNMP/TFTP

    Posted 05-04-2017 10:54 PM

    I have a couple of question about this problem:

    a) What device family does the device belong to? Cisco IOS which is default

    b) Are the capture of others devices from this same device family okay? Only happen to certain CISCO device. Other CISCO device is success.

    c) Is there any overriding of the Local Communication Configuration on the device? No

    d) Verify if the TFTP Directory has any lingering transfer file. No

    e) A WireShark capture while attempting a capture need to be reviewed. Not tested yet

    f) Have you tried saving the Cisco configuration using SNMP manually?. Not tested yet



  • 4.  Re: Capture/Push Config using NCM SNMP/TFTP

    Posted 05-03-2017 09:01 AM

    we have seen that several Cisco devices take some time to respond to the last SNMP Set command for such operations.

    Try to enlarge the DCM Timeout for the device model, f.e. to 20000.

     

    Regards,

    Olaf



  • 5.  Re: Capture/Push Config using NCM SNMP/TFTP

    Posted 05-04-2017 10:52 PM

    Mr OlafS,,

     

    Already set to maximum but still not resolve the problem. Is there any way?



  • 6.  Re: Capture/Push Config using NCM SNMP/TFTP

    Posted 05-05-2017 02:39 AM

    As Silvio already said, with a tcpdump or wireshark trace you'll see what's going on.
    In the case I mentioned, we saw that the device started at first the file transfer, what took some time, and the SNMP set command was confirmed after that. A workaround was to enlarge the DCM parameters for such devices.

    In other cases we saw a delayed confirmation in the file transfer protocol but I don't know how to influence the TFTP settings.

     

    Regards,

    Olaf