LMS 3.2 DFM and PPP interface traps

Answered Question
Jun 21st, 2010

Hello,


I have a problems with traps from PPP links. Traps are corectly send from device, LMS server receive traps, but these traps are not displayed in DFM. I'm using SNMPv2c (SNMPv3 doesn't work properly). Information about link down is corectly diplayed in DFM syslog, but I have not any informations in a Fault History.

Can you help me?


Regards,


Martin

Correct Answer by Joe Clarke about 6 years 8 months ago

DFM doesn't process link down traps except to determine if a link is flapping.  You will not see link down traps in the DFM Alerts and Activities Display.  Instead, DFM will use SNMP and ICMP polling to determine if an interface goes down.  This will not happen for all interface types, though. These PPP interfaces may be learned as dial-on-demand interfaces by DFM, and thus will not report when they go down.  If these links should be up all the time, then you will need to customize an interface group in DFM to match these interfaces, then enable the desired threshold information for these interfaces.  You will still not see link down traps in DFM, but DFM should show OperationallyDown events in AAD based on the polling it does.

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Correct Answer
Joe Clarke Mon, 06/21/2010 - 16:28

DFM doesn't process link down traps except to determine if a link is flapping.  You will not see link down traps in the DFM Alerts and Activities Display.  Instead, DFM will use SNMP and ICMP polling to determine if an interface goes down.  This will not happen for all interface types, though. These PPP interfaces may be learned as dial-on-demand interfaces by DFM, and thus will not report when they go down.  If these links should be up all the time, then you will need to customize an interface group in DFM to match these interfaces, then enable the desired threshold information for these interfaces.  You will still not see link down traps in DFM, but DFM should show OperationallyDown events in AAD based on the polling it does.

gavurnik Tue, 06/22/2010 - 08:02

Thank you for your post.


You are right, it works fine. We have OperationalDown Events in ADD, that is OK.


Thank you for your help.

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