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How to choose a PoE switch?

Hello everyone, This blog describes PoE switches in detail and will give you an overview of how to choose a PoE switch.   Power Supply Standards The power supply standards for PoE switches are classified as PoE (IEEE 802.3af), PoE+ (IEEE 802.3at) and PoE++ (IEEE 802.3bt). Here list some PoE switch for example: ...

Configuring TACACS in MA5800-X2

Issue Description After making the following configuration on the Huawei MA5800-X2 OLT, it didn't work: hwtacacs-server template "xx-servers" hwtacacs-server authentication x.x.x.xx hwtacacs-server authorization x.x.x.xx hwtacacs-server accounting x.x.x.xx hwtacacs-server shared-key "xxx aaa  authentication-scheme "default" authentication-mode radius  authentication-scheme "xx-tacacs" authentication-mode hwtacacs local   # authorization-scheme "default" authorization-mode hwtacacs local   # accounting-scheme "default" accounting-scheme "xx-tacacs"  #  domain "default"  authentication-scheme "xx-tacacs"   hwtacacs-server "xx-servers" Alarm Information Handling Process 1. Verify configuration whether is completed 2. Check OLT to tacacs server...

What is DCN?

Hello friends, do you know what DCN is? Let's see it. Data center networks are the infrastructure of data center services, requiring computer systems, storage systems, communications systems, communication connections, and management and monitoring systems. Enterprises or organizations can store, manage, and advertise information in data centers. The CE series switches...

Cross-connect capacity of the OptiX OSN 3500

This time, I will share with you a case about the Cross-connect capacity of the OptiX OSN 3500 Different cross-connect boards have different cross-connect capacities. lists the cross-connect boards and the corresponding cross-connect capacities supported by the OptiX OSN equipment.   Board Higher Order Cross-Connect Capacity Lower Order Cross-Connect Capacity Access Capacity of a Single Subrack Remarks N1GXCSA 40...

RJ45 port VS SFP port

Hello, everyone! In today's article, I will explain the difference between the RJ45 port and the SFP port. Sounds interesting, doesn't it? Let's see! Network devices such as routers, switches, servers, OLTs, ONUs, etc. use RJ45 ports and SFP ports for communication. Network devices can have one or more RJ45 ports,...

Types and differences of SM optical fibers

Hello everyone! There are a number of different SM fiber optic standards. In today's article, I will explain the G.652, G.653, G.654, and G.655 standards. Let's familiarize ourselves with these standards! The following table shows the standards with a basic description that I will write about today. There are different standards that...

SFP vs. SFP+

Hello everyone! Today's article is dedicated to SFP and SFP+ modules. I will give a short explanation of both modules with the most important features and in addition, I will show the most important differences between them. I have already written about similar topics in several previous articles. But now...

PoE vs PoE+ vs PoE++

Hello everyone, PoE (Power over Ethernet) refers to supplying power through an Ethernet network, also known as a local area network-based power supply system PoL (Power over LAN) or Active Ethernet. The PoE system supports three standards: 802.3af (PoE), 802.3at (PoE+), and 802.3bt (PoE++).   What is a PoE switch? In 2003, IEEE...

How do you know the port type on the ONT?

Hi, dear friends. Today, the content of this blog how to log in to the ONT WebUI to view the Ethernet port information and identify the port type of the device based on the rate of each port. Like HN8546X6 Wifi6 which supports 4*GE, and the HG8245C which supports 4*FE. The...