The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

8.2.2.5 Monitoring Network Usage

The ip -s link command displays network statistics and errors for all network devices, including the numbers of bytes transmitted (TX) and received (RX). The dropped and overrun fields provide an indicator of network interface saturation.

The ss -s command displays summary statistics for each protocol.