A fix is available
APAR status
Closed as program error.
Error description
FC 5287 network adapter by default sends LLDP multicast packet. If an etherchannel is configured using this adapter without custom MAC address, network communication thru this etherchannel stop working after etherchannel failover to the backup adapter occurs. The reason is that the primary adapter keep sending LLDP multicast packet containing its MAC address while the backup adapter also uses the primary MAC address after failover and this confuses the network switch since they sees the same valid MAC address from two port (primary and backup) at the same time.
Local fix
Disable LLDP function of the network switch.
Problem summary
FC 5287 network adapter by default sends LLDP multicast packet. If an etherchannel is configured using this adapter without custom MAC address, network communication thru this etherchannel stop working after etherchannel failover to the backup adapter occurs.
Problem conclusion
ODM attribute introduced to enable or disable LLDP on need basis.
Temporary fix
Comments
6100-08 - use AIX APAR IV69979 6100-09 - use AIX APAR IV75625 7100-02 - use AIX APAR IV63948 7100-04 - use AIX APAR IV75635
APAR Information
APAR number
IV63948
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-08-25
Closed date
2014-11-12
Last modified date
2016-02-24
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 U870278
UP15/09/21 I 1000
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Document Information
Modified date:
24 February 2016