sysclassnetifacestatistics

Sysclassnetifacestatistics refers to the Linux kernel’s sysfs interface that exposes per-network-interface statistics. It is presented under /sys/class/net/<interface>/statistics and provides read-only counters reported by the kernel and, where available, the network driver and hardware. These counters reflect activity on a per-interface basis and are useful for monitoring, diagnostics, and performance analysis.

The statistics directory contains a set of files, each representing a specific metric. Common entries include rx_bytes, tx_bytes, rx_packets, tx_packets, rx_errors, tx_errors, rx_dropped, tx_dropped, multicast, and collisions. The exact set and names can vary by driver and kernel version, so not all fields are guaranteed to exist on every system. Counters are typically unsigned integers, often 64-bit, and are cumulative until the interface is reset or the system reboots (behavior can depend on hardware and driver).

Access is straightforward: read the values with commands like cat /sys/class/net/<interface>/statistics/rx_bytes. They are intended for monitoring and can be combined with interval-based reads to compute rates (differences over time). This sysfs-based approach complements traditional statistics available in /proc/net/dev or through networking tools and utilities.

Notes: the statistics data may come from hardware counters or software counters maintained by the driver. Because the exact contents can differ between devices and kernel versions, consult the relevant driver documentation or the kernel sources for a precise description of available fields. Sysfs statistics enable consistent per-interface insight across diverse networking hardware.