HP Auto Port Aggregation (APA) Release Notes for HP-UX 11i v1, 11i v2, and 11i v3 March 2009

Table 1-1 Fixes in the HP APA B.11.11.30 Release (continued)
DescriptionDefect ID
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_notify_msg function.
CR: JAGaf69619
SR: 8606409736
When a user application sends a DL_HP_HW_RESET_REQ primitive to a link aggregate
or failover group, APA returns the error code 233 (EOPNOTSUPP).
CR: JAGaf69665
SR: 8606409782
Under some stress situations, the system panics with a data page fault in LACP
subsystem.
CR: JAGaf69724
SR: 8606409841
Four ports are connected to two Nortel switches using Split Multi-Link Trunking
(SMLT), and LACP is used for trunking. When one of the Nortel switches is powered
down and then powered up, the LACP ports migrate to a different link aggregate
on the server. Because the new link aggregate has no IP address configured, the
network connection is lost completely.
CR: JAGaf78771
SR: 8606418941
Four ports are connected to two Nortel switches using Split Multi-Link Trunking
(SMLT), and LACP is used for trunking. When one of the switches is powered down,
the network connection is lost completely. SMLT is a proprietary technology to make
link aggregates across switches.
CR: JAGaf78775
SR: 8606418945
APA removes a port from LACP link aggregates only after the port fails to send an
LACP PDU for more than 90 seconds.
CR: JAGaf78780
SR: 8606418950
When two LACP ports on an HP server are connected to two Nortel switches using
SMLT (each port is connected to a unique switch), they initially form a link aggregate.
After one switch fails, the link aggregate disappears.
CR: JAGaf87533
SR: 8606428052
The system might hang after setting ifAdmin states of APA link aggregates. This
is a rare occurrence.
CR: JAGaf87544
SR: 8606428063
The lan*conf commands can log unneeded information to NetTL.
CR: JAGaf98281
SR: 8606440400
A bad_news panic in the apa_lacp_check_linkagg function with the following
stack trace:
panic_save_regs_switchstack+0x110
panic+0x490
bad_news+0x440
bubbleup+0x8e0
apa_lacp_check_linkagg+0xa0
apa_update_linkagg_properties+0x2c0
apa_ioctl_del_linkagg_ports+0x3b0
apa_ioctl_clear+0x650
apa_process_event+0x460
apa_process_queue+0x330
invoke_callouts_for_self+0x2e0
soft_intr_handler+0x240
external_interrupt+0x620
bubbleup+0x8e0
deadlock_check+0x190
sl_pre_check+0x1f0
spinlockx+0x90
prioceil_restore_pri+0x90
rwlock_unlock+0x430
pm_unlink_thread_from_active+0x50
exit+0x4c0
rexit+0x40
syscall+0x1430
CR: JAGaf98454
SR: 8606440645
During heavy loads, ports in PAgP link aggregates drop out of link aggregates and
then rejoin. This disrupts the traffic flow across the link aggregate interface.
CR: JAGag15219
SR: 8606459037
Known Problems Fixed in This Version 9