How to test network link quality quickly?

In our daily work, study, Internet process often encounter network card, slow, intermittent phenomenon, enterprise information center or network center often receive such complaints, that the network fault is caused by what? This is a very complicated matter, but also a headache to solve, especially in the face of the network slow, intermittent failure phenomenon.

At this time, before you complain about the carrier network, you need to distinguish whether it is an internal network problem or the carrier network problem, and how to determine the link performance of the internal network? The fastest test tool at this time is to use a network performance tester.

Ethernet performance tester is a network management and maintenance personnel very need a function, small size, easy to use, reasonable price and handheld Ethernet network analyzer, in order to quickly solve the network blocked, slow network speed, packet loss, IP address conflict, malicious attacks and other common network failures and ensure that the network smooth. It is used to test the actual network bandwidth, packet loss rate, delay, jitter and other performance indicators, so as to judge the network performance.

How to test network link quality quickly?

If the performance of the Intranet is excellent, the problem of the Intranet can be basically eliminated. You can contact the carrier and ask the carrier to check the quality of the carrier link. If the enterprise LAN link is faulty after the test, you can further troubleshoot and locate the fault step by step using the dichotomy method.

Ethernet performance tester has the following test functions:

Bit error: Test whether the network has errors, alarms, or whether the network will tamper with data packets

Frame analysis: A line can be configured with a maximum of eight services, for example, different services of eight vlans. Check whether the services conflict with each other, resulting in alarms, bit errors, and packet tampering

RFC2544: The most important test function of the network analyzer. It is used to test network performance indicators, such as network bandwidth (throughput), delay (time between Ethernet packets sent and returned), and packet loss rate.

RFC3393: Used to verify whether voice packets cause voice distortion or intermittent speech during network transmission. Especially suitable for IPTV, VOIP network performance test.

Y.1564: The most important test function of the network analyzer, used to test network performance indicators such as network bandwidth (throughput), delay (time between Ethernet packets sent and returned), packet loss rate, and jitter (time difference between two adjacent packets).

RFC6349: Provides repeatable test methods for TCP throughput analysis, systematic procedures, metrics, and standards for optimizing network and server performance.

Loopback: Network analysers are used in pairs. One of them is the master, mainly for error code analysis, frame analysis, RFC2544,Y.1564 or RFC6349 function test, and the other one is the master, mainly for layer 1 to layer 4 loopback (that is, to forward the received data back) test.