i found the solution, the switch ports were down,, it is my first time configuring switch,, i didnt know the default off all interface are down,
hardware : m1000e, network A1 - Gigabit Ethernet Dell Ethernet Pass-Through B2 - 10 GbE (XAUI Only) DELL 10GbE XAUI PTM   blades m620 with Broadcom 57710 mezzanin on slot b   i have configured the m1000 and successfully installed proxmox os on the blade. but only the a1 network is working. running ipaddr i see the interfaces  enp3s0f0,enp3s0f1: that have matching mac address to WWN/MAC Addresses . however they are in disabled state.   they are connected to dell force10 s4810p
Broadcom 57710 interface in disabled state