IBM Support

MA49381 - LIC-COMM-TCPIP ENDTCP WITH ACTIVE DB2MIRROR IPSEC LINKS CAUSES
LINE TO FAIL

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APAR (Authorized Program Analysis Report)

Abstract

LIC-COMM-TCPIP ENDTCP WITH ACTIVE DB2MIRROR IPSEC LINKS CAUSES
LINE TO FAIL

Error Description

When Db2Mirror is configured with encrypted NRG (Network        
Redundancy Group) links, IPsec is offloaded to the adapter to  
provide encryption. If TCP/IP is ended (ENDTCP or ending the    
system to restricted state) while these NRGs are active, errors
may occur within the device driver for the RoCE adapter that may
cause it to be unusable until after an IPL.                    

Problem Summary

When Db2Mirror is configured with encrypted NRG (Network        
Redundancy Group) links, IPsec is offloaded to the adapter to  
provide encryption. If TCP/IP is ended (ENDTCP or ending the    
system to restricted state) while these NRGs are active, errors
may occur within the device driver for the RoCE adapter that may
cause it to be unusable until after an IPL.                    

Problem Conclusion

IPsec will clean up any IPsec offload to the adapter when TCP/IP
is ended to prevent this error.                                

Temporary Fix

Comments

Circumvention


PTFs Available

R740 MF69280  2125

R750 MF69281  2104

Affected Modules


         
         

Affected Publications

Summary Information

Status............................  CLOSED PER
HIPER.............................  No
Component.........................  9400DG300
Failing Module....................  RCHMGR
Reported Release..................  R740
Duplicate Of......................  




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Document Information

Modified date:
24 May 2022