private int linkSpeed; // In units of 1 Mbps
    private byte[] sockaddrStorage;
    private InetAddress address;
    private boolean ipv6;
    private boolean rssCapable; // Receive Side Scaling
    private boolean rdmaCapable;

    /**
     * Create network interface info
     *
     * @param address interface address
     * @param linkSpeed link speed in Mbps
     */

import java.util.ArrayList;
import java.util.List;

public class NetworkInterfaceInfo {
    private int interfaceIndex;
    private int capability;
    private int linkSpeed;  // In units of 1 Mbps
    private byte[] sockaddrStorage;  // Socket address
    private InetAddress address;
    private boolean ipv6;
    private boolean rssCapable;  // Receive Side Scaling
    private boolean rdmaCapable;
    

    server.enqueue(
      MockResponse
        .Builder()
        .body(
          Buffer()
            .write(ByteArray(responseBodySize)),
        ).throttleBody(64 * 1024, 125, MILLISECONDS) // 500 Kbps
        .build(),
    )
    val call = client.newCall(Request(server.url("/")))
    val response = call.execute()
    cancelLater(call, 500)
    val responseBody = response.body.byteStream()

        if (total == 0)
            return 0.0;
        return (double) errors.get() / total;
    }

    /**
     * Get throughput in bytes per second
     *
     * @return throughput in bps
     */
    public long getThroughput() {
        long duration = System.currentTimeMillis() - establishedTime;
        if (duration == 0)
            return 0;