Event Procedure for Interface Index number to IF Name

Products

• Network Observability

Issue/Introduction

We are getting a trap which informs us about loopback on a particular interface, but the variable that is bound in the trap is the Index number of the Interface. We were wondering
  if there is some kind of Event Procedure we could write that would convert the Index number to be shown as the IF name in the event display. 

Environment

Any

Resolution

As the original event contains the port's ifIndex value we can use this to read its ifName from the ifName 0x11f60 attribute and set this as a new variable in a new event.

$SPECROOT/custom/Events/EventDisp

0xfff02bb2 E 20 P " \     CreateEventWithVariables( \        { C CURRENT_MODEL },\        { H 0xfff02bb3 }, \        SetEventVariable( \             GetEventVariableList(), \             { U 4 }, \             ReadAttributeInstance( { C CURRENT_MODEL }, { H 0x11f60 }, GetEventVariable( { U 1 } )  ) \     ) \ )" 0xfff02bb3 E 20

Note: There cannot be any white spaces after the '\' character at the end of the lines. This is escaping the newline character so its read as one line.
Note: Used the ifName/0x11f60 attribute at the device level.


When implementing  you would need to change 0xfff02bb2 to your mapped event id, create a new event id replace 0xfff02bb3 with your new event ID.







The Event Format Message can be added to display the ifName from Variable 4

Additional Information

Function Reference
  CreateEventWithVariables 
  GetEventVariable
  GetEventVariableList
  ReadAttributeInstance
  SetEventVariable

  Event Procedure Examples