HP Auto Port Aggregation (APA) Release Notes HP-UX 11i v1, 11i v2, and 11i v3 (March 2011)

Table 1 Fixes in the HP APA B.11.11.30 Release
DescriptionDefect ID
Under some stress situations (for example, a port is continuously enabled and then
disabled to run LACP), the system panics due to data page fault with the following
stack trace:
panic+0x8c
report_trap_or_int_and_panic+0x94
interrupt+0x4e4
ihandler+0x940
lacp_processing_poll_timer+0x128
lacp_ctrl+0x1e8
lacp_poll_timeout+0x60
invoke_callouts_for_self+0x234
soft_intr_handler+0x1
sw_service+0x1c
mp_ext_interrupt+0x478
ihandler+0x91c
CR: JAGaf48622
SR: 8606388472
When creating a MANUAL mode link aggregate from a set of ports, if some of the
ports do not exist, APA does not create the link aggregate.
CR: JAGaf58421
SR: 8606398439
When a user application sends a DL_HP_MULTICAST_LIST_REQ primitive to a link
aggregate or failover group, APA returns the error code 233 (EOPNOTSUPP).
CR: JAGaf61223
SR: 8606401274
Unable to create a MANUAL mode link aggregate from ports with different Group
Capability values.
CR: JAGaf61667
SR: 8606401730
Unnecessary failover can occur with cost-based failover groups.CR: JAGaf65504
SR: 8606405583
No information on proactive failover is saved to the var/adm/syslog/syslog.log
file.
CR: JAGaf65775
SR: 8606405865
The NetTL messages that describe proactive failover events do not provide enough
information.
CR: JAGaf65776
SR: 8606405866
When the LACP timeout values of link partners are changed, APA responds in a manner
that does not conform to the IEEE 802.3ad standard. This can cause a temporary
connection loss.
CR: JAGaf67974
SR: 8606408071
If an LACP port's link partner times out and then recovers, the LACP port might not
rejoin its original link aggregate.
CR: JAGaf68386
SR: 8606408484
LACP ports might take up to 90 seconds to detect a unidirectional link failure.CR: JAGaf68450
SR: 8606408548
When one link of a LACP link aggregate becomes unidirectional (a link can either
receive or transmit), network connectivity of the aggregate is lost.
CR: JAGaf68497
SR: 8606408595
Sometimes the LACP states of APA does not match those of its link partners. This can
cause a temporary connection loss.
CR: JAGaf68634
SR: 8606408732
When one link partner is not ready to receive packets but others are ready, network
connectivity is lost .
CR: JAGaf68635
SR: 8606408733
APA sets the collecting and distributing bits in the LACP PDU when the synchronization
bit is cleared.
CR: JAGaf68823
SR: 8606408921
Under some stress situations (for example, a port is continuously enabled and then
disabled to run LACP), the system panics with data page fault in the lacp_tx_sm
function.
CR: JAGaf69439
SR: 8606409555
6 HP APA Overview for HP-UX 11i v1