hp blade and GBE 2 switch

[Osama Odeh_1]

we install hp blade enclosure with 8 servers bl20 g3
the network config :
** left side connected to cisco core switch A
port 17,18 trunk 1 stp enabled
port 19,20,21,22 trunk 2 stp enabled
** right side connected to cisco core switch b
port 17,18 trunk 1 stp enabled
port 19,20,21,22 trunk 2 stp enabled
when I unplug GBE sw and add SAN connectivity KIT
my network stop response
and there is a loop hapened because the GBE SW unplug and replug it lost all configurations specially trunk so loop happend
because port 19,20,21,22 connected to cisco core switch with ether chanel

why configuration losted..??

....

thanks

[Oleg Koroz]

firmware ? for GBE2