A fix is available
APAR status
Closed as program error.
Error description
************************************************************** * USERS AFFECTED: * Systems running the AIX 7200-01 Technology Level * with devices.common.IBM.ethernet.rte at the 7.2.1.1 level. ************************************************************** * ERROR DESCRIPTION: * In recent Service Packs, for etherchannel devices in * IEEE802.3ad mode (LACP mode), if a link port goes down or is * disconnected, after it comes back etherchannel may never be * able to renegotiate LACP on that port again. * * There is a discrepancy in the protocol used between the * server and switch that prevents the port from being * re-aggregated. * * If this issue occurs, it can be resolved temporarily by * reconfiguring LACP mode on the etherchannel adapter. This * will allow LACP to be renegotiated on the port for now, * though the issue could reoccur later if the fix is still not * applied. * * On VIOS with etherchannel (entY) under SEA (entX), use: * $ oem_setup_env * # /usr/lib/methods/ethchan_config -c -p entX entY mode * standard * # /usr/lib/methods/ethchan_config -c -p entX entY mode 8023ad * * On AIX with etherchannel (entY), use: * # /usr/lib/methods/ethchan_config -c entY mode standard * # /usr/lib/methods/ethchan_config -c entY mode 8023ad * * Note: This change may cause temporary network interruption * over this etherchannel adapter if the first port in the * etherchannel is the one that is down. * ************************************************************** * RECOMMENDATION: * Install APAR IV97588. * Prior to fix availability, an interim fix is available from * either * ftp://aix.software.ibm.com/aix/ifixes/iv97588/ * https://aix.software.ibm.com/aix/ifixes/iv97588/ * Installation of the ifix requires a reboot. **************************************************************
Local fix
LOCAL FIX: If this issue occurs, it can be resolved temporarily by reconfiguring LACP mode on the etherchannel adapter. See Error Description for details.
Problem summary
At the latest levels, pulling/reconnecting a cable from an LACP etherchannel port may lead to the port staying permanently out-of-sync.
Problem conclusion
Modified etherchannel driver to fix COLLECTING bit enablement in the LACP negotiation process.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
IV97588
Reported component name
AIX V7.2
Reported component ID
5765CD200
Reported release
720
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Submitted date
2017-06-29
Closed date
2017-06-29
Last modified date
2018-09-21
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 V7.2
Fixed component ID
5765CD200
Applicable component levels
R720 PSY U873456
UP17/09/21 I 1000
PTF to Fileset Mapping
U873456 devices.common.IBM.ethernet.rte 7.2.1.2
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
21 September 2018