ICX7250 - L3 Premium - Cannot upgrade via TFTP

[oreste_esposito]

Hello,

I am having troubles in upgrading my ICX7250 L3 premium via TFTP.
My ICX has two VRFs: 

SSH@MY-ICX>show vrf detail
Total number of VRFs configured: 2

VRF VRF-DATA, default RD 10.1.255.1:200, Table ID 1
IP Router-Id: 10.1.255.200
Interfaces:
ve100 ve110 ve202 ve201 ve249 ve255 ve50

Address Family IPv4
Max Routes: 750
Number of Unicast Routes: 8
VRF VRF-VIDEO, default RD 10.100.255.1:15, Table ID 2
IP Router-Id: 10.15.170.254
Interfaces:
ve170 ve455

Address Family IPv4
Max Routes: 750
Number of Unicast Routes: 3

Total number of IPv4 unicast route for all non-default VRF is 11
Total number of IPv6 unicast route for all non-default VRF is 0

I don't use default VRF because I want to clearly define my VRFs. I usually manage my switches via ve255. So I taped these commands:

device(config)# ip tftp source-interface ve 255
device#  copy tftp flash 10.7.20.32 SPR08095hufi.bin secondary

I got a timeout; it isn't a firewall problem because I upgraded other switches (same tftp server, tftp client member of the same LAN of interface ve255).

Could you help me please ?

Thanks.

Best regards,
Oreste