# network switching subsystem

> component of the Global System for Mobile Communications (GSM)

**Wikidata**: [Q779475](https://www.wikidata.org/wiki/Q779475)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Network_switching_subsystem)  
**Source**: https://4ort.xyz/entity/network-switching-subsystem

## Summary
The network switching subsystem (NSS), also known as the GSM core network, is a fundamental component of the Global System for Mobile Communications (GSM). It functions as a type of network switch, utilizing packet switching to forward data. As an instance of networking hardware, it mediates data within the mobile network infrastructure.

## Key Facts
*   The network switching subsystem is a component of the Global System for Mobile Communications (GSM).
*   It is also known by aliases such as NSS, GSM core network, signed response, and SRES.
*   It is classified as a subclass of a network switch, which is a computer networking device.
*   The subsystem is an instance of networking hardware.
*   It includes the Visitor Location Register (VLR), a database found in the Mobile Services Switching Center.
*   Its Wikipedia entry is available in 10 languages, including English, Arabic, and Chinese.

## FAQs
### Q: What is the network switching subsystem?
A: The network switching subsystem (NSS) is a key component of the Global System for Mobile Communications (GSM). It is also referred to as the GSM core network and functions as a type of network switch.

### Q: What are the aliases for the network switching subsystem?
A: Common aliases for the network switching subsystem include NSS, GSM core network, signed response, and SRES. It is also known by its Chinese and Arabic names.

### Q: What is the network switching subsystem a part of?
A: The network switching subsystem is a fundamental component of the Global System for Mobile Communications (GSM). Its role was referenced as early as October 17, 2018.

### Q: What type of hardware is the network switching subsystem?
A: The network switching subsystem is an instance of networking hardware. It is specifically classified as a subclass of a network switch, which uses packet switching to forward data.

## Why It Matters
The network switching subsystem (NSS) is critical because it forms the core of the Global System for Mobile Communications (GSM), a widely adopted standard for mobile telephony. As a type of network switch, it is responsible for using packet switching to forward data, a fundamental function for any modern communication network. Its role as networking hardware means it mediates the flow of data within the mobile network, enabling calls, messages, and data services to be routed efficiently. The NSS's importance is further highlighted by its inclusion of components like the Visitor Location Register (VLR), a database essential for managing subscriber information and mobility within the Mobile Services Switching Center. Without the NSS, the seamless operation and global reach of GSM networks would not be possible, making it an indispensable part of mobile communication infrastructure.

## Notable For
*   Serving as a core component of the Global System for Mobile Communications (GSM).
*   Being classified as a subclass of a network switch, a fundamental computer networking device that uses packet switching to forward data.
*   Encompassing the Visitor Location Register (VLR), a crucial database within the Mobile Services Switching Center.
*   Recognized globally with aliases such as NSS, GSM core network, and SRES, and having Wikipedia entries in 10 languages.

## Body

### Definition and Core Function
The network switching subsystem (NSS) is a fundamental component of the Global System for Mobile Communications (GSM). It is also known as the GSM core network. The NSS is responsible for managing communication within the GSM network.

### Classification and Relationships
The network switching subsystem is classified as a subclass of a network switch. A network switch is a computer networking device that uses packet switching to forward data. Network switches are main components of the Internet infrastructure and of each computer network. The NSS is an instance of networking hardware, which refers to devices that mediate data in a computer network.

### Key Components
The network switching subsystem includes the Visitor Location Register (VLR). The VLR is a database located within the Mobile Services Switching Center.

### Aliases and Identifiers
The network switching subsystem has several aliases, including:
*   NSS
*   GSM core network
*   signed response
*   SRES
*   GSM核心网
*   全球移動通信系統核心网
*   签名响应
*   التحويل عبر الدارة لقلب الشبكة

Its Wikipedia title is "Network switching subsystem" and it has entries in 10 languages (ar, ca, cs, de, en, es, fr, id, it, ko). It has a kbpedia_id of GSMNetwork and a freebase_id of /m/030xy0. The wikidata_description states it is a "component of the Global System for Mobile Communications (GSM)".

## References

1. KBpedia