A fix is available
APAR status
Closed as program error.
Error description
When the IPoIB interface is used, the ifconfig command shows that the bmcast status is "PENDING" after disconnecting/reconnecting the IB cable. . #ifconfig ib0 ib0: flags=e1a0063<UP,BROADCAST,NOTRAILERS,RUNNING ,ALLCAST,MULTICAST,GROUPRT> pmtu 2048 qkey 0x... qpn 0x.. lid 0x.. hca iba0 port 1 inet X.X.X.X netmask 0xffffff00 broadcast X.X.X.X tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1 bmcast status: PENDING... <------ . The IPoIB interface will not work properly in this situation. Ping will fail to any node.
Local fix
Detaching/Attaching the IPoIB interface by # chdev -l ibx -a state=down;chdev -l ibx -a state=up
Problem summary
When the IPoIB interface is used, the ifconfig command shows that the bmcast status is "PENDING" after disconnecting/reconnecting the IB cable. . #ifconfig ib0 ib0: flags=e1a0063<UP,BROADCAST,NOTRAILERS,RUNNING ,ALLCAST,MULTICAST,GROUPRT> pmtu 2048 qkey 0x... qpn 0x.. lid 0x.. hca iba0 port 1 inet X.X.X.X netmask 0xffffff00 broadcast X.X.X.X tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1 bmcast status: PENDING... <------ . The IPoIB interface will not work properly in this situation. Ping will fail to any node.
Problem conclusion
Code added to retry multicast group join in case the subnet manager does not respond the first time.
Temporary fix
Comments
6100-08 - use AIX APAR IV69982 6100-09 - use AIX APAR IV66116 7100-02 - use AIX APAR IV70234 7100-03 - use AIX APAR IV64567
APAR Information
APAR number
IV70234
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2015-02-28
Closed date
2015-02-28
Last modified date
2015-09-30
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
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U867258
UP15/09/21 I 1000
PTF to Fileset Mapping
U867258 devices.common.IBM.ib.rte 7.1.2.20
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Document Information
Modified date:
30 September 2015