What is a fiber switch

What is the function and working principle of fiber Switch fiber switch: Fiber Optic switch is a high-speed network transmission relay device, which uses fiber optic cable as transmission medium compared with ordinary switch. The advantages of optical fiber transmission are fast speed and strong anti-interference ability.

With the increasing of enterprise network data and the frequent application of network, many enterprises begin to realize that they need to build their own storage System network to meet the requirements of increasing data storage performance. Currently, the most popular data storage network is the SAN (Storage area Network, storage Region Network), that is, the entire storage as a separate network with the server's corporate LAN connection.

It is characterized by the use of high transmission rate of Fibre Channel and server network, or the internal components of the San network connectivity, so that the entire storage network has a very wide bandwidth, for high-performance data storage to provide protection. In this kind of SAN storage network, the key role is that we often hear the fiber switch (FC switch, also known as "Fibre Channel switch" and "san Switch"). Because it belongs to a new type of device and is too different from what we normally see and use Ethernet switches (mainly in the form of protocol support), many readers, even enterprise users who already use a SAN storage network, have a smattering of San switches. To this end, this article is dedicated to the choice of San switches to pay attention to the issues to be introduced to you, in fact, is to introduce the main features of San switches. Start with a simple understanding of the origin of the San switches, which will allow us to deepen our understanding of SAN switches and not be filled with "mystery" colors.

What is an introduction to fibre switches:

The fibre Ethernet switch is a high-performance, managed two-layer fibre Ethernet access switch. The user can choose all optical port configuration or photoelectric port mixed configuration, access to the fiber medium can be a menu mode fiber or multimode fiber. The switch can support both network remote management and local management to enable monitoring of port working status and switch settings.

The fiber port is especially suitable for the information point access distance beyond the five types of line access distance, the need for electromagnetic interference and the need for confidentiality of communications and other occasions applicable areas include: Residential district FTTH Broadband access network, enterprise high-speed fiber LAN, high reliable industrial distributed control System (DCS), optical fiber digital video surveillance network; Hospital high-speed fiber lan;

The function and working principle of fiber switch:

Non-blocking storage-forwarding switching mode, with 8.8Gbps switching capability, all ports can simultaneously work at full duplex speed

Support 6K MAC address, with automatic MAC address learning, updating function

Support Port aggregation, providing 7 groups of converged broadband distributors

Support priority queues to provide quality of service assurance

Support for 802.1d spanning Tree Protocol/fast Spanning Tree protocol

802.1X Port-based access authentication supported

Support ieee802.3x Full Duplex flow control/Half-duplex back-pressure flow control

Support for tagged vlan/based vlan/vlan with 255 VLAN groups, up to 4K VLANs

Support for Port based network access control

has port isolation capabilities

With the blocking of the Baotou (HOL) prevention mechanism to minimize packet loss

Support Port and MAC address binding, MAC address filtering

Support Port Mirroring

With sniff network monitoring function

has port bandwidth control function

Support for IGMP listening multicast control

Support Broadcast Storm control

Network management:

Remote Centralized network management: Supports SNMP, web-based administration, Telnet, based on a specified port or 802.1Q VLAN for increased security.

Local Independent network management: through the standard RS-232 interface implementation

Network standards and protocols:

Ieee:

802.3, 802.3u, 802.3z, 802.3ab, 802.1d, 802.1p, 802.1q, 802.1v, 802.3ad, 802.3x, 802.1x

Ieft:

RFC1157 SNMP, RFC 1112/2236 IGMP, RFC854 Telnet, RFC 1123/1493/1643 MIB

Purchase Instructions:

The choice of optical fiber Ethernet switch mainly need to consider the configuration of the optical port module

Hundred Gigabit Ports

Single fiber single mode, dual wavelength 1550nm/1310nm,20/40km

Double fiber single mode, single wavelength 1310nm or 1550nm,20/40/60km

Dual-fiber multimode, single wavelength 1310nm,2km

Gigabit Ports

Dual fiber 50/125μm multimode, wavelength 850nm,550m;

Dual fiber 62.5/125μm multimode, wavelength 850nm,275m;

Dual fiber single mode, wavelength 1310nm or 1550nm,10/20/40/60km.