DB2 restores from TSM dying randomly

We've got a DB2 database that we're trying to do a redirected restore with (from a prod environment to a training environment), and it's been randomly dying with a TSM error of -50, which typically indicates network problems in my experience.

However, we're not seeing any network issues anywhere else on the same switch; the DB2 server is not experiencing any other network related problems that I've been able to discover, and the same with our TSM server.

"netstat -v en0" on the TSM server does show some network resource exhaustion (note "No Resource Errors"). I've only just started looking at it, so I don't know if it's growing, or has been at that level for months:

root@tsm:/opt/tivoli# netstat -v en0
-------------------------------------------------------------
ETHERNET STATISTICS (ent0) :
Device Type: 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
Hardware Address: 00:14:5e:47:ed:1e
Elapsed Time: 272 days 17 hours 7 minutes 17 seconds

Transmit Statistics: Receive Statistics:
-------------------- -------------------
Packets: 96372715603 Packets: 446177823271
Bytes: 10962268168838 Bytes: 650871361153455
Interrupts: 0 Interrupts: 73404188380
Transmit Errors: 0 Receive Errors: 3444
Packets Dropped: 0 Packets Dropped: 0
Bad Packets: 0
Max Packets on S/W Transmit Queue: 74
S/W Transmit Queue Overflow: 0
Current S/W+H/W Transmit Queue Length: 0

Broadcast Packets: 127211 Broadcast Packets: 20468592
Multicast Packets: 104831 Multicast Packets: 410
No Carrier Sense: 0 CRC Errors: 0
DMA Underrun: 0 DMA Overrun: 0
Lost CTS Errors: 0 Alignment Errors: 0
Max Collision Errors: 0 No Resource Errors: 3444
Late Collision Errors: 0 Receive Collision Errors: 0
Deferred: 0 Packet Too Short Errors: 0
SQE Test: 0 Packet Too Long Errors: 0
Timeout Errors: 0 Packets Discarded by Adapter: 0
Single Collision Count: 0 Receiver Start Count: 0
Multiple Collision Count: 0
Current HW Transmit Queue Length: 0





Am I on the right track here, or is there somewhere else I should be looking? For what it's worth, both servers are at 6100-06-05-1115.

Any pointers would be greatly appreciated!
Mike