If you are working remotely on a Huawei device and are not sure whether a change could cause the connection to be lost, then the schedule reboot is an important tool for you.

The well-known Cisco IP SLA function is also available on Huawei devices and is called NQA (Network Quality Analysis). It allows to configure tests to react on failures. This article shows a simple ICMP IP SLA/NQA example that is attached to a static route.

Each route is assigned a value that represents the trustworthiness depending on the protocol. Huawei and Cisco define this trustworthiness differently, which is why this can have an influence on the routing table. This article shows the differences between of the Route Preference (Huawei) and the Administrative Distance (Cisco) for the different protocols.

This article simply describes how to perform a system upgrade for a Huawei device (switch, router, WLAN controller, etc.) and install a patch.

In daily operation it may happen that the packets in the network have to be recorded and analyzed in order to isolate errors. This article introduces the different types of port mirroring on a Huawei device.

If no separate DHCP server is available the Huawei router/switch can also be configured as a DHCP server. There are two ways in which this can be done which are described here.

An Eth-trunk combines several physical links between two devices into a logical link. This article shows which settings are important for an Eth-trunk to function optimally and how the load balancing on the different physical interfaces is calculated.

If an additional entry is added or deleted in an ACL (access control list), then the sequence numbers are no longer correct. Instead of deleting the ACL and adding it again, there is the option of resequencing or renumbering which is shown here with an example.

In contrast to SNMPv1 and SNMPv2c, SNMPv3 allows additional security. This guide shows how to configure a Huawei device (e.g. switch) for SNMPv3.

If certain commands need to be executed automatically on a Huawei device, the cron job is a helpful tool. This feature is described here with an example.

You have probably already received the message in the logbuffer or via syslog on a Huawei switch that the storage utilization has reached 80%. What can be done about this is described here.

You can send messages from one VTY session to another (e.g. SSH). This can be helpful to inform other users about important information. If you want to kill a VTY session this can also be done from the CLI. Both features are described here.

For more in-depth troubleshooting, debugging on the CLI (Telnet or SSH) can be very helpful. This article describes the steps required to activate debugging.

One of the last steps in troubleshooting is recording and analyzing using an analyzer (e.g. Wireshark). This article describes the port mirroring feature which is called observing port by Huawei. This solution needs physiscal access to the switch to connect the analyzer.

If the DHCP is not in the same network, then the DHCP Discover and Request must be forwarded via DHCP Relay (Cisco calls it IP-Helper). The easiest way is described here.

Huawei is very open when it comes to 3rd party SFP. In most cases, all SFPs work, but it generates a message every day, which fills the log unnecessarily. This can be disabled.

If you need to do further troubleshooting you may have to capture packets for deeper investigations. Besides using the mirroring feature which needs a packet analyzer (e.g. Wireshark) connected to the network you can also use the build in packet capture feature from Huawei.

If you have the problem that a link is not coming up even if you have tried several different transceivers and you see the error "Transceiver type mismatch" in the output of the display interface command this may help you.

In some cases you need to create Layer-2 domains with switches from different vendors. This article gives you information how to connect Huawei and Cisco switches together with MSTP (IEEE 802.1s).

From software version V200R019 Huawei changed the initial password change policy. You will be asked to change the initial password which can be disabled.

A factory reset of a Huawei device (e.g. switch, router, etc.) can be done in different ways. Here we will see two of the most used ways to make a factory reset.

Instead of using Telnet you should use SSH to get access to a Huawei device (switch, router, wlan controller, etc.). This article describes the required commands to get SSH access.

Sometimes you see in the logging information about "Auto port-defend started" for specific protocols. Per default Huawei has configured port-defend for different protocols which can be adjusted or disabled.

Huawei access points can be operated in three ways: Fat, Fit, and as a Cloud AP. In this article, we will discuss the configuration in Fit mode and how the access point can discovery a WLAN controller (AC).

If you need to upload a file (e.g. VRP image or license file) to a Huawei device and you don't have a TFTP or FTP server up and running then you can use the SSH connection.

In bigger projects, it can happen that a large number of switches have to be upgraded with the same image. An upgrade via FTP/TFTP/SCP etc. takes a very long time thats why the solution with the USB stick can be very helpful.