Netia Ethernet – efficient data transmission between branches

Ethernet is a standard communication protocol used in local area networks (LANs), metropolitan area networks (MANs) and wide area networks (WANs) to connect computers, servers, printers and other devices to each other, to the network and to the Internet.

Ethernet made its debut in the 1980s as a way of connecting devices located in close proximity. It has been the backbone of most business networks for the past 40 years due to its scale, reliability and ease of deployment. It provides access to state-of-the-art solutions, resources and functions thanks to the continuous increase in data speeds.

Currently, it is the most widespread technology in LANs. However, it goes beyond local solutions, enabling companies to use Ethernet in their wide area networks (WANs) and allowing large enterprises to connect to distributed branch offices and data centers. It also facilitates the deployment of a range of applications through access to various network technologies such as e.g. VPN virtual private networks.

Netia Ethernet is a dedicated service for customers who:

- have a centralized architecture of their network (applications, service servers, corporate data resources are collocated in data centers or at the company headquarters).

- require fast, reliable and symmetrical connections of the company’s branches with the central location through a single unified Ethernet network, within one or several Ethernet nodes.

- do not want to implement Layer 3 protocols and devices of the OSI model in their network. (This means that costs can be reduced by eliminating active network devices such as routers).

- expect from the solution the highest level of security at the connection level - need regular backups of all the computers on the company network, which requires a high bit rate 

- carry out activities involving the distribution of large amounts of content, such as multimedia presentations, video transmissions, e-learning or distance lectures - provide video surveillance or video broadcasting services

- expect to operate centralized IT systems requiring high transmission parameters where data exchange
between units must be continuous and without time delays (e.g. SAP, ERP - CRM systems)

- remotely manage networks and servers, and backing up the systems they are in charge of is a key part of their business.

 - provide video surveillance or video broadcasting services - expect to operate centralized IT systems requiring high transmission parameters where data exchange between units must be continuous and without time delays (e.g. SAP, ERP - CRM systems) - remotely manage networks and servers, and backing up the systems they are in charge of is a key part of their business.

- Provision of a high-capacity symmetrical link
- Security - Routing in case of physical link failure (Layer 2)
- SLA guarantee, QOS - COS – 3
- CIR guarantee - Service maintenance
- Relatively low price
- High scalability with simultaneous simplicity of managing the data transmitted via the service (as a uniform Ethernet protocol is used throughout the network)

Netia Ethernet service provides:

- access link to the customer’s location (implemented in a technology adapted to the needs of the solution and with a bit rate resulting from the customer’s requirements)

- network topology according to customers needs

- provision of terminal equipment and end devices, if required (CE switches)

- CE switch management according to customer needs

- transmission of all types of traffic - service performance guarantees covered by the SLA with discounts

Broadband is a type of Internet connection characterized by high data transfer rates, measured in Kbps, Mbps or Gbps. Such connections are made possible by technologies from the DSL family (ADSL, SDSL, etc.) as well as, for example, cable connections of television networks, satellite connections or fixed wireless connections.

Broadband Internet connections use dedicated types of lines and cables for data transmission which are used exclusively for Internet access. As a result, they make it possible to transfer large files, high-quality images, films, watch web TV, take part in video conferences, and use a range of sophisticated Internet services.

A customer using the Netia Ethernet service can choose from 3 ways to connect the main location with the branches – network topology:

- point-to-point – is characterized by the fact that each physical port in the customer’s branch company has its corresponding physical Ethernet port in the central location. From the customer’s point of view, these are independent Ethernet data transmission channels. Each such channel can have different parameters, and any type of service can be used to build it.

- point-to-multipoint – is characterized by the fact that all physical ports in the company’s branches converge on a single physical port in the central location. This type of implementation determines the type of service to be used to deploy the Ethernet network. Depending on the needs, the customer’s branches can be deployed via a Basic, Dedicated or Advanced service option. The Central Location in this case must support 802.1Q tagging and should therefore be deployed using the Dedicated or Advanced option. This solution reduces the costs associated with the deployment of the infrastructure on the central port side,

- point-to-multipoint with grooming.

Ethernet is a standard initially used in the construction of local area networks and now also in wide area networks. It includes the specification of cables and the signals they transmit. Ethernet also describes the packet format and protocols at the two lowest OSI layers, and its specification is defined in the 802.3 IEEE standard.

10 Mbps Ethernet technologies

10Base2 – uses a coaxial cable running between all the network cards plugged into the network. The cards are connected using a tee to which the cable is plugged using a BNC connector.
10Base5 – a 1980 standard that allowed the construction of segments of up to 500 m. It operated at 10 Mbps. 10BaseF – an Ethernet specification with a baseband of 10 Mbps, referring to the 10BaseFB, 10BaseFL, 10BaseFP standards, using fiber optic cable.
10BaseFB, 10BaseFL, 10BaseFP – an Ethernet specification with 10 Mbps baseband, using fiber optic cable. 10BaseT – an Ethernet specification with a baseband of 10 Mbps, using two pairs of twisted pair cable. 10BaseFX – a broadband 100 Mbps Fast Ethernet specification, using two fiber optic cables.
10Broad36 – an Ethernet specification with a baseband of 10Mbps, using the broadband coaxial cable used to transmit TV signals.

100 Mbps Ethernet technologies

100BaseT – Fast Ethernet – a high-speed transmission standard for local area networks at 100 Mbps bit rate in a star topology.
100BaseT4, 100BaseTX, 100BaseX – Fast Ethernet 100 Mbps broadband specifications.
100BaseVG – a 100 Mbps standard proposed by Hewlett-Packard.
100VG-AnyLAN – a 100Mbps Fast Ethernet technology plus Token.

1000 Mbps Ethernet technologies

1000BaseLX, 1000BaseSX – Gigabit Ethernet technologies using data transmission over fiber optic cable. 1000BaseT – Gigabit Ethernet technology using twisted-pair data transmission.
1000BaseCX – allows data to be transmitted via a 150 Ohm cable over a maximum distance of 25 metres.

10 Gbps Ethernet technologies

10GBaseLX4 – has a range of 240 or 300 m for multi-mode fiber or 10 km – for single-mode fiber.
10GBaseLR – Ethernet using single-mode fiber optics, allowing data transmission over a distance of 10 km. 10GBaseER – Ethernet using single-mode fiber optics, allowing data transmission over a distance of 40 km. 10GBaseSW, 10GBaseLW and 10GBaseEW – equivalent to 10GBaseSR, 10GBaseLR and 10GBaseER which use synchronous transmission over the same fiber types and distances.
6BONE – is a test network of IPv6 (the latest, sixth version of the Internet Protocol.

The topology of a network defines how its elements are interconnected. A distinction is made between physical and logical topologies. A physical topology defines how stations and network devices are physically connected, and a logical topology defines how they communicate with each other.

Bus-type networks (Ethernet 10Base-2) These are constructed using coaxial cable and the length of one network segment is a maximum of 185 m. Computers are connected to the cable using tee connectors. The ends of each network segment must also be fitted with suitable terminators at the ends.

Star networks (Ethernet - 10Base-T, Fast Ethernet - 100Base-TX) This is a commonly used solution due to its much lower failure rate. The cable length from the hub to the computer can be up to 100 m.