crossbow discuss - Apr 2010 - vnic over aggr duplicate packets when rebooted

I have a vnic over an aggr. When I initially create the vnic everything works
fine. It''s when the system goes through a reboot that it creates
duplicate (DUP!) packets when I ping it.

# sudo dladm show-link
LINK        CLASS     MTU    STATE    BRIDGE     OVER
bnx1        phys      1496   up       --         --
bnx0        phys      1496   up       --         --
bnx3        phys      1496   up       --         --
bnx2        phys      1496   up       --         --
default1    aggr      1496   up       --         bnx2 bnx3
default0    aggr      1496   up       --         bnx0 bnx1
vboxnet0    phys      1500   unknown  --         --
vsi_114     vnic      1496   up       --         default0

# dmesg | grep vnic
Apr 24 00:42:20 apollo01 mac: [ID 469746 kern.info] NOTICE: vnic1002 registered
Apr 24 00:42:20 apollo01 mac: [ID 435574 kern.info] NOTICE: vnic1002 link up, 0
Mbps, unknown duplex

Any thoughts?
-- 
This message posted from opensolaris.org

On Apr 24, 2010, at 1:10 AM, Scott wrote:
> I have a vnic over an aggr. When I initially create the vnic everything
works fine. It''s when the system goes through a reboot that it creates
duplicate (DUP!) packets when I ping it.
Did you already double check that the aggregations are configured on the peer
system or switch as well? Such misconfiguration could cause packet duplication.
Enabling LACP would allow the switch and host to detect such configuration
mismatch.

Nicolas.
> 
> # sudo dladm show-link
> LINK        CLASS     MTU    STATE    BRIDGE     OVER
> bnx1        phys      1496   up       --         --
> bnx0        phys      1496   up       --         --
> bnx3        phys      1496   up       --         --
> bnx2        phys      1496   up       --         --
> default1    aggr      1496   up       --         bnx2 bnx3
> default0    aggr      1496   up       --         bnx0 bnx1
> vboxnet0    phys      1500   unknown  --         --
> vsi_114     vnic      1496   up       --         default0
> 
> # dmesg | grep vnic
> Apr 24 00:42:20 apollo01 mac: [ID 469746 kern.info] NOTICE: vnic1002
registered
> Apr 24 00:42:20 apollo01 mac: [ID 435574 kern.info] NOTICE: vnic1002 link
up, 0 Mbps, unknown duplex
> 
> Any thoughts?
> -- 
> This message posted from opensolaris.org
> _______________________________________________
> crossbow-discuss mailing list
> crossbow-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/crossbow-discuss
-- 
Nicolas Droux - Solaris Core OS Engineering - Oracle
nicolas.droux at oracle.com