DTCOSD247I Issued to Report All PROXYARP IP Addresses Unassigned
APAR Identifier ...... PQ71490 Last Changed ........ 03/03/31 DTCOSD247I ISSUED TO REPORT ALL PROXYARP IP ADDRESSES UNASSIGNED Symptom ...... IN INCORROUT Status ........... CLOSED PER Severity ................... 3 Date Closed ......... 03/03/31 Component .......... 5735FAL00 Duplicate of ........ Reported Release ......... 430 Fixed Release ............ 999 Component Name TCP/IP V2 FOR V Special Notice Current Target Date .. Flags SCP ................... Platform ............ Status Detail: APARCLOSURE - APAR is being closed. PE PTF List: PTF List: Release 430 : UQ75662 Parent APAR: Child APAR list: ERROR DESCRIPTION: VM TCPIP UNASSIGNS all I/P addresses for hosts attached to via a POINT to POINT connection when one Device is stopped. Traces shows the device is stopped followed by the UNASSIGNS. DTCIUC016E IUCV shutting down: DTCPRI385I Device IUCV2: DTCPRI386I Type: IUCV, Status: Connected DTCPRI387I Envelope queue size: 0 DTCPRI389I VM id: LINUX2 DTCPRI478I IUCV Priority: A DTCOSD247I OSD device QD01: Unassigned IP address 10.4.17.37 DTCOSD247I OSD device QD01: Unassigned IP address 10.4.17.36 DTCOSD247I OSD device QD01: Unassigned IP address 10.4.17.35 DTCOSD247I OSD device QD01: Unassigned IP address 10.4.17.34 . Only the last I/P address should have been unassigned the first 3 are still CONNECTED. LOCAL FIX: VM TCPIP level2 has a circumvention available.. PROBLEM SUMMARY: **************************************************************** * USERS AFFECTED: Users of real or virtual QDIO and * * HiperSockets devices also using proxy ARP * * for multiple point-to-point links to other * * (e.g., Linux) guests * **************************************************************** * PROBLEM DESCRIPTION: Message DTCOSD247I is produced for all * * point-to-point links being used with * * proxy ARP whenever one such link is * * stopped. As a result, traffic stops * * flowing to all guests connected via * * point-to-point links. * **************************************************************** * RECOMMENDATION: APPLY PTF * **************************************************************** Proxy ARP support transmit to the OSD adapter the IP addresses for hosts connected to VM TCP/IP via point-to-point links, enabling the adapter to deliver packets for those IP addresses to VM TCP/IP for forwarding. When one of these point-to-point links is stopped, its IP address is removed from the table of addresses maintained by the adapter. However, code was erroneously deleting all such IP addresses whenever one of the point-to-point device was stopped. PROBLEM CONCLUSION: Code has been changed to delete only the IP address for the link that is stopped. TEMPORARY FIX: COMMENTS: MODULES/MACROS: TCPIP TCTOOSD SRLS: NONE RTN CODES: CIRCUMVENTION: MESSAGE TO SUBMITTER: