User`s guide

Chapter I. Chelsio Unified Wire
Chelsio T5/T4 Unified Wire For Linux Page 45
5.3. Checking Link
Once the network-scripts are created for the interfaces you should check the link i.e. make sure
it is actually connected to the network. First, bring up the interface you want to test using
ifup eth1.
You should now be able to ping any other machine from your network provided it has ping
response enabled.