Network connectivity with the server is lost and the following message is printed "netxen_nic ethX: transmit timeout, resetting" in Red Hat Enterprise Linux

Issue

Network connectivity with the server is lost and the following message is printed in the syslog's

kernel: NETDEV WATCHDOG: eth2: transmit timed out  
kernel: netxen_nic eth2: transmit timeout, resetting.  
kernel: netxen_nic: eth2 NIC Link is up