Shulou(Shulou.com)06/01 Report--

Network link blocking

Data will pass through many devices and network links in the process of network transmission, as long as one of the network links is fully loaded before the data arrives, then the data will be blocked here for a period of time. If the network equipment is very backward, then the network link does not have enough waiting space for new data, and the only thing it can do is to discard the information.

Repair method:

An increases the bandwidth of blocking links

B uses Qos (traffic priority and resource reservation control mechanism) to give priority to real-time applications. Although this method does not alleviate network link congestion, it can give priority to voice and video to reduce the possibility of disconnection.

Device performance (routers, firewalls, switches)

With sufficient bandwidth, if your routers, firewalls, and switches cannot handle traffic, you may still face packet loss. Let's consider a scenario where the traffic report shows that traffic reaches its peak during the daily peak, so you upgrade the network bandwidth from 1Gb to 10Gb, and after the upgrade, the data shows that you can only reach 1.5Gb. When network packets reach the network device, but at this point the network device's CPU, or memory is full, they will discard packets that cannot be processed.

Repair method:

Replace better network hardware, or build clusters to improve network utilization.

Network cable or hardware issu

Another common cause of packet loss may be caused by physical component failures. If there is a hardware failure, an error message is usually output in the device terminal or in the system log. If it is a network link error, it is usually a network interface error, which can be detected on copper cables and fiber optics.

Repair method:

These are one of the common causes of network packet loss, in order to accurately find the problem, it is best to do network assessment and thorough troubleshooting. After verification, the faulty hardware must be replaced and the faulty network link must be repaired.

Software problems on Network Devices

We all want the software on the network devices to be perfect, but this is not the case. These network devices are very complex, and it is only a matter of time before we encounter bug.

Repair method:

The latest version of the software needs to be updated.

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