VM66485: REPORT IPV6 ADDRESSES FOR ETHERNET VSWITCHES

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• For Ethernet VSwitches, support is added to collect and report
  IPv6 addresses on Query Vswitch, Query Virtual NIC, and DIAG 26C
  
  As IPv6 usage becomes more prevalent, this information will be
  more important for diagnostics. In addition, the VSwitch Unicast
  IP table structure will be changed from a linked list to a hash
  table.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of VSwitch networks                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  For Layer 2 VSwitches, support is needed to display IPv6
  addresses on Query Vswitch, Query Virtual NIC, and DIAG 26C.
  

Problem conclusion

Temporary fix

Comments

• z/VM VSwitch support is enhanced to observe ICMPv6 messages
  for Layer 2 VSwitch guests, and retain the IPv6 addresses.  The
  IPv6 addresses will be displayed on the Query VSwitch and Query
  Virtual NIC commands, and returned in the DIAG 26C subcode x'24'
  data.
  In addition, the LAN IP table (used to determine the destination
  of a packet during data transfer) has been changed from a
  circular linked list to a hash table for improved efficiency.
  
  To support APAR VM66485, new editions of the following
  publications are available:
      SC24-6267-03: Connectivity
      SC24-6268-09: CP Commands and Utilities Reference
      GC24-6286-10: General Information
      GC24-6294-09: Migration Guide
  

APAR Information

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

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

  UM35894

Modules/Macros

• HCPARP   HCPDGQ   HCPGAL   HCPIPHBK HCPIPN   HCPLAN   HCPLANBK
  HCPMES   HCPMESB  HCPMXRBK HCPNDMBK HCPVLC   HCPVLF   HCPVLQ
  HCPVNS   HCPVQA   HCPVQS   LAN      VIRTNIC  VSWITCH
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R720 PSY UM35894

     UP21/08/11 P 2201  

Fix is available

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