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A complete analysis of routers: from basics to purchasing guide

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A complete analysis of routers: from basics to purchasing guide

Basic concepts and functions of routers

1. Definition

A router is a network device used to forward data packets between different networks (such as home networks, enterprise networks, or the Internet). Its core function is to connect multiple networks (such as LAN and WAN) and select the optimal transmission path for data packets through routing selection algorithms.


2. Core functions

●Path selection (Routing): Determine the data transmission path based on routing tables and algorithms (such as OSPF, BGP).●Packet forwarding (Forwarding): Forward data from the input interface to the correct output interface.

●Network address translation (NAT): Convert private IP to public IP to enable multiple devices to share a public address.

●Firewall and security: Filter malicious traffic through ACL or firewall functions.

●Wireless access (Wi-Fi): Home routers usually integrate wireless APs to provide Wi-Fi connections.


Hardware composition of routers

1.Central processing unit (CPU): Performs routing protocol calculations and configuration management.

◆Home routers: low-power ARM/MIPS chips.

◆Enterprise-level routers: high-performance multi-core processors (such as Cisco ASIC).


2.Memory:

◆RAM: stores runtime data such as routing tables (lost in case of power failure).

◆Flash: saves operating system images and configuration files.


3.etwork interface:

◆WAN port: connects to external networks (such as ISP lines).

◆LAN port: connects to local devices (supports PoE power supply).

◆Wireless module: supports 2.4GHz/5GHz frequency bands.


4.Switch chip: accelerates data exchange within the LAN.

5.Power module: external adapter for home use, redundant power supply for enterprise use.


Core categories of routers

1.Home routers

◆Features: covers small and medium-sized households, supports Wi-Fi 5/6, integrated parental control, QoS optimization.

◆Representative models: TP-Link Archer series, Huawei AX3.


2.Enterprise-level routers

◆Features: high concurrent connections, VPN support, multi-WAN port load balancing.

◆Representative models: Cisco ISR, Huawei AR series.


3.Mesh router

◆Features: Multi-node networking, seamless coverage of large apartments.

◆Representative models: Netgear Orbi, ASUS ZenWiFi.


4.5G mobile router

◆Features: Insert SIM card to provide mobile network, strong portability.

◆Representative model: Huawei 5G CPE Pro.


5.Industrial router

◆Features: Dustproof and waterproof, suitable for IoT and remote monitoring.

◆Representative model: Sierra Wireless IX20.

Key Technical Parameters of Routers

Different types of routers vary in technical parameters. For example, compare home routers and enterprise routers:
ParameterHome RoutersEnterprise Routers
Wi - Fi StandardWi - Fi 6Wi - Fi 6E
Device Capacity20 - 50 devices200+ devices
SecurityWPA3 EncryptionFirewall/VPN


Typical application scenarios

◆Home scenarios: video streaming, gaming, smart home interconnection.

◆Enterprise scenarios: branch office interconnection, remote office VPN.

◆Outdoor scenarios: temporary network construction at exhibitions/construction sites (such as 5G mobile routers).

Brand Comparison


BrandAdvantageous AreasRepresentative TechnologiesSuitable Users
TP - LinkHome - use cost - effectivenessOneMesh networkingBudget - conscious families
Huawei5G/Integrated ChipsLingxiao CPU, HarmonyOS MeshSmart home users
NetgearHigh - end home/MeshOrbi satellite technologyLarge - apartment owners/tech enthusiasts
ASUSGaming/Customizable FirmwareAiMesh, GameBoostGamers
CiscoEnterprise - class NetworksSD - WAN, ISR architectureMedium - to large - sized enterprises


FAQ 

Q: Does this router support the frequency bands of Russian mobile operators?

A: It is recommended to use the European version, which supports FDD: B1/B3/B5/B7/B8/B20/B28, TDD: B38/B39/B40/B41. It is recommended to test the sample first.


Q: Can I use the SIM card of the Russian operator?

A: It is recommended to test the sample first to ensure compatibility.


Q: Does it support external antenna to enhance the signal?

A: This series of 4G routers has a built-in external antenna interface.


Q: What are the product dimensions and packaging specifications?

A: The weight of a single machine is 0.4KG, and the packaging box size is 450×395×258mm (20 units/box).


Q: Does it support delivery to Russia? How long does it take to ship?

A: Yes, FOB Shenzhen, the shipping time is about 20-25 days.


Q: What customization options are provided?

A: Support LOGO and packaging box customization (MOQ 1000 units, unit price 22.1 USD).


Q: What is the price range?

A: 2-1000 units: 30 USD/unit; ≥1000 units: 22.5 USD/unit.


Q: Can I order samples? How much is the sample price?

A: Yes, the sample price is 30 USD.


Q: Is the power cord included?

A: Yes.


Q: Can the default network name and password be preset?

A: Support pre-configured software settings according to needs.



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