HP Auto Port Aggregation (APA) Release Notes (5900-2483, September 2012)
Table 1 Fixes in the HP APA B.11.11.30 Release (continued)
DescriptionDefect ID
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
CR: JAGaf78771
SR: 8606418941
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.
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
CR: JAGaf78775
SR: 8606418945
connection is lost completely. SMLT is a proprietary technology to make link aggregates
across switches.
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
CR: JAGaf98454
SR: 8606440645
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
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
The lanqueryconf command might put ports having VLANs configured on them
into failover groups. The lanapplyconf command fails if it detects these ports inside
a failover group.
CR: JAGag17374
SR: 8606461410
The lanapplyconf command cannot create failover groups whose member ports
have an MTU of 259 or less.
CR: JAGag17375
SR: 8606461411
6 HP APA Overview for HP-UX 11i v1