IV25131: RCA FAILS TO SUPPRESS EVENTS FROM THE CHASSIS IP WHEN THE GRAPH ENDS ON AN INTERFACE WITH THE SAME IP.

ITNMIP_Patch_V3.8.0.89_Win32
3.8.0-TIV-ITNMIP-Solaris-REF-FP0007
3.8.0-TIV-ITNMIP-Linux-REF-FP0007
ITNMIP_Patch_V3.8.0.89_AIXPPC32
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 3, 3.9.0-TIV-ITNMIP-FP0003
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 4, 3.9.0-TIV-ITNMIP-FP0004
IBM Tivoli Network Manager IP Edition 3.9.0 Fix Pack 5, 3.9.0-TIV-ITNMIP-FP0005

APAR status

• Closed as program error.

Error description

• Product: Tivoli Network Manager IP Edition
  Version: 3.9
  Component: Root Cause Analysis
  
  Symptom:
  Isolated-Suppression fails to suppress events from the chassis
  when the graph though the network terminates on an interface
  with the same IP.
  
  In the user case, the interface that is used to identify the
  chassis is contained within an VLAN.  Although the VLAN is
  subsequently contained within the chassis, it is also isolated
  within the chassis because the chassis device is not an
  IP-FORWARDING device.  So although connectivity extends from the
  interface to the VLAN, the path is not continuous up to the
  chassis entity.
  
  Therefore when RCA encounters events from the Chassis entity, it
  fails to complete a continuous path from the polling station all
  the way to the chassis and does not mark the event as a symptom.
  
  Action:
  1. Modify the Discovery stitcher code so that the interface
   is upwardly connected to the VLAN.
  
  2. Modify the RCA code so that when the Isolated-Suppression
  algorithm encounters an interface on the path that has the same
  IP address as the chassis, it looks for events on the chassis
  too and suppresses any events it finds on the chassis.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users.                                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Isolated-Suppression fails to suppress events from the       *
  * chassis when the graph though the network terminates on the  *
  * non-ipForwarding management IP port in the VLAN of a switch  *
  * (or router) .                                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply updated ModifyIPContainment.stch. | fix pack |         *
  * 3.8.0-ITNMIP-FP0007                                          *
  ****************************************************************
  

Problem conclusion

• Modify the Discovery stitcher code to allow the non-ipForwarding
  IP interface be upwardly connected to the VLAN Object.
  
  The following fixpacks will contain the fix:
  | fix pack | 3.8.0-ITNMIP-FP0007
  | fix pack | 3.9.0-ITNMIP-FP0003
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  NC/PRECISIONIP

• Fixed component ID

  5724O52RC

Applicable component levels

• R380 PSY

     UP

• R390 PSY

     UP