Autoport Aggregation check-sum Offload mismatch

[Luk Vandenbussche]

Hello,
I try to bundle to lan cards in an rp7410, the 1000 Mbit card on the GSP and an extra A5230A adapter.
When I start hpapa, I receive the following error :

# ./hpapa start
DLPI version is 2
./hpapa started.
Please be patient. This may take about 40 seconds.
HP_APA_MAX_LINKAGGS = 50
HP_APA_DEFAULT_PORT_MODE = MANUAL
/usr/sbin/hp_apa_util -S 2 MANUAL
/usr/sbin/lanadmin -X -g 2 5 900
New Group Capability = 5
/usr/sbin/lanadmin -X -t 2 0 900
New Port Priority = 0
/usr/sbin/lanadmin -X -s 2 0 900
New System Priority = 0
/usr/sbin/hp_apa_util -S 0 MANUAL
/usr/sbin/lanadmin -X -g 0 5 900
New Group Capability = 5
/usr/sbin/lanadmin -X -t 0 0 900
New Port Priority = 0
/usr/sbin/lanadmin -X -s 0 0 900
New System Priority = 0
lan900
/usr/sbin/lanadmin -X -l LB_MAC 900
New Load Balancing = 2
/usr/sbin/lanadmin -X -y off 900
New Hot Standby = OFF
/usr/sbin/lanadmin -X -g 900 0 900
New Group Capability = 0
/usr/sbin/lanadmin -X -a 2 0 900
ERROR: Error: Check-sum Offload mismatch for port 2
./hpapa Completed successfully.
# lanadmin -X -a 2 0 900
Error: Check-sum Offload mismatch for port 2
# lanadmin -X -a 0 2 900
Error: Check-sum Offload mismatch for port 0
# lanadmin -x 0
Current Config = 100 Full-Duplex AUTONEG

# lanadmin -x 1
# lanadmin -x 2
Speed = 100 Full-Duplex.
Autonegotiation = On.

#

The settings on my switch are OK, because I have other systems running the same configuration.

Any idea's?

[Sara Gomez_2]

Hello

Gigabit devices use a checksum offload capability that the 100BT devices don't have. You can use any combination of gigabit cards to form a linkagg or a failover group, but can not mix devices with different operational characteristics.

Sara

[Luk Vandenbussche]

Is there no workaround?

[Sara Gomez_2]

I don't think there is any workaround. It seems to me a matter of design. APA checks cards characteristics and you would have to change the product itself to avoid it.

[Luk Vandenbussche]

Problem solved with 2 x 100 MB