iSCSI ServerA SPa-eth2 to Switch Port 9 (Vlan 1);
iSCSI ServerA SPa-eth3 to Switch Port 1 (Vlan 20);
iSCSI ServerB SPb-eth2 to Switch Port 10 (Vlan 1); - ping request failed from host.
iSCSI ServerB SPb-eth3 to Switch Port 2 (Vlan 20);
I found that in some the switch ports when I connect eth2 cable from EMC VNXe SPB ping request succeeded and in some failed.
iSCSI ServerB SPb-eth2 to Switch Port 8 (Vlan 1); - ping request succeded from host.