MTR Network Link Monitoring
Monitoring Background
The routing strategies of the three major domestic ISPs are intricate, and network link instability has a very significant impact on various industries. For example, gaming, live streaming, and other industries have very high dependence on networks. Therefore, IT personnel of various enterprises need to understand the network link situation from users in various regions to data centers or target hosts, so that targeted optimization can be performed to improve users' business access experience.
Solution
For network link monitoring and optimization, TingYun chooses the MTR monitoring method. It uses synthetic monitoring clients from various regions across the country to simulate real users' real networks and initiate MTR tests on target hosts. My Traceroute combines the characteristics of Ping and Traceroute. Compared to Traceroute which only performs one link tracking test, MTR continuously probes relevant nodes on the link and provides corresponding statistical information. It can avoid the impact of node fluctuations on test results, so its test results are more accurate.
| Metric | Metric Description | Explanation |
|---|---|---|
| Loss% | Packet Loss Rate | Judge the packet loss situation of the entire link based on the packet loss rate of the final target host. |
| Send | Size of packets sent | By default, 100 packets are sent each time. |
| Last (ms) | Latency of last packet sent | |
| Avg (ms) | Average latency | |
| Best (ms) | Best latency | |
| Worst (ms) | Worst latency | |
| StdDev | Standard deviation (jitter) | The higher the jitter, the more unstable the link |
| Hop | Hop count | Number of route hops from test point to target host |
Industry Reference
| Good | Normal | Poor | |
|---|---|---|---|
| Same Province Same ISP | Latency: <20 ms | Latency: 20~80 ms | Latency: >80 ms |
| Packet Loss: <5% | Packet Loss: 5%~10% | Packet Loss: >10% | |
| Different Province Same ISP | Latency: <50 ms | Latency: 50~100 ms | Latency: >100 ms |
| Packet Loss: <10% | Packet Loss: 10%~15% | Packet Loss: >15% | |
| Different ISP | Latency: <100 ms | Latency: 100~150 ms | Latency: >150 ms |
| Packet Loss: <15% | Packet Loss: 15%~20% | Packet Loss: >20% |