I was having a retransmit issue with the above equipment, here’s how I got around it. On the Force10’s I ran this config as the Equallogic and the vHost iscsi ports have to be configured this way:
config
protocol spanning-tree rstp
no disable
interface GigabitEthernet x/x
description EQL or vHost iSCSI Port
no ip address
mtu 9252
switchport
flowcontrol rx on tx on
spanning-tree rstp edge-port
no shutdown
!
that’ll take the TCP retransmit down to below .05