Uplink Port Vs. Normal Port on Switch

December 06 [Wed], 2017, 15:28

When it comes to network switch, we usually ask about the port type on the switch and the number of port, such as twenty-four 10/100/1000 Mbps ports and four SFP+ ports. If you have used managed switch in your network deployment, you must have heard about uplink port or normal port. How much do you know about them? Is there any difference between them? This article will guide you to learn about uplink port vs. normal port on switch.



Uplink Port Vs. Normal Port: Connect to Different Devices


The uplink port on switch is used to connect a device or smaller local network to a larger network, or connect to the next "higher" device in the topology. For example, edge switch connects "up" to distribution layer managed switch. Also in computer network, hub, unmanaged switch and router typically designate one Ethernet port as the uplink port. And it may be labeled WAN or Internet instead of uplink. This type of port simplify connects different types of Ethernet devices to each other, such as when linking a local home network to a modem and the Internet. While normal port on switch is used to connect end user PC or server and all. In most cases, uplink ports have more bandwidth as compared to normal ports as they aggregate traffic between different layers.



Uplink Port Vs. Normal Port: Connect to Different Cables


Each Ethernet interface has two transmit pins and two receive pins. To achieve the link connection, the transmit pins at one end of network cable have to be connected to the receive pins at the other end. An uplink port does not crossover the transmit and receive pins, but a regular port does. Therefore, when two network switches are connected together with a straight-through cable, then one end must be uplink port and one end must be normal port. If a crossover cable is used to connect them, then the ports at both ends must be the same kind of port. Here is a figure for you to have a better understanding of this.


uplink port vs. normal port



Uplink Port Vs. Normal Port: Additional Information about Shared Port and Dual-purposed Port


Some older network equipment specially configured a normal port next to the uplink port and linked the two together as a pair. Specifically, the hardware logic of these products supported connections to either the uplink port, or the normal shared port, but not both. Connecting devices to both ports of a shared port device stops the unit from functioning properly. Nowadays, many network equipment offer a dual-purpose port which can function either as an uplink or a normal port depending on the type of device connected to it.



Conclusion


In fact, uplink port can serve as normal port. Therefore, there are no big differences between them. The only difference is that uplink port is connected to higher layer network device to aggregate the bandwidth and must be connected to the normal port on another network device. I hope after reading this article, you can be clear on uplink port vs. normal port on switch.

Cheap 8 Port Gigabit Switch Recommendations

November 30 [Thu], 2017, 16:42

We know that router plays an important role when building home network. It provides IP addresses to devices on your network as well as to route traffic to and from the internet. However, router usually has four Ethernet ports (LAN ports). That means you can only connect four network devices to the router via Ethernet cable. Is there any method to add more Ethernet ports? Of course, Ethernet switch can do that. This article will recommend several cheap 8 port Gigabit switches for you.



Cheap 8 port Gigabit Switch Recommendation 1—TP-Link TL-SG108 Switch


TP-Link TL-SG108 8 port Gigabit switch is featured with eight 10/100/1000Mbps ports. It utilizes the latest innovative energy-efficient technologies that can greatly expand your network capacity with much less power. It costs about $24.99. TP-Link TL-SG108 switch is an eco-friendly solution for your home network.


TP-Link TL-SG108 Switch



Cheap 8 port Gigabit Switch Recommendation 2—Trendnet TEG-S82G Switch


Trendnet TEG-S82G 8 port Gigabit switch is a compact, plug and play gigabit switch. It has 8 Gigabit auto-negotiation ports and it utilizes GREENnet technology to reduce power consumption by up to 70%. In addition, Trendnet TEG-S82G switch can boost your home efficiency and eliminate network congestion with Gigabit speeds and total switching capacity of 16 Gbps with Full-Duplex Mode. The price is about $22.99.


Trendnet TEG-S82G Switch



Cheap 8 port Gigabit Switch Recommendation 3—D-Link DGS-1008G Switch


D-Link DGS-1008G 8 port Gigabit switch is part of D-Link’s comprehensive family of home devices that make use of D-Link’s Green Technology, providing energy savings, reduced heat, and a longer product life without sacrificing performance or functionality. D-Link DGS-1008G switch supports up to 1 Gbps of dedicated bandwidth per port and up to 2 Gbps bandwidth in full-duplex mode. The price is about $24.99.


D-Link DGS-1008G Switch



Cheap 8 port Gigabit Switch Recommendation 4—Linksys SE3008 Switch


Linksys SE3008 8 port Gigabit switch allows you to add up to eight devices to your home network with plug-and-play installation. The Gigabit ports provide 10 times faster connection than ordinary 10/100 Ethernet connections. Linksys SE3008 switch also uses energy-saving technology that power saver detects unused ports to minimize power usage. In addition, its Gigabit ports is auto-sensing which can adjust to maximize data flow rates for 10/100/1000 Mbps. The price is about $37.88.


Linksys SE3008 Switch



Cheap 8 port Gigabit Switch Recommendation 5—TP-Link TL-SG1008D Switch


TP-Link TL-SG1008D 8 port Gigabit switch provides you an easy way to make the transition to Gigabit Ethernet. It can Increase the speed of your network server and backbone connections, or make Gigabit to the desktop a reality. Moreover, TP-Link TL-SG1008D switch adopts lower power consumption design. With the innovative energy-efficient technology, the switch can save up to 80% of the power consumption, making it an eco-friendly solution for your home network. This 8 port gigabit switch price is about $19.99.


TP-Link TL-SG1008D Switch



Conclusion


All the above 8 port Gigabit switches are easy to use. They provide plug and play installations and can save the power consumption. And I hope this article can help you choose the best 8 port gigabit switch for your home network.

Know More About LC And SC Fiber Patch Cable

November 18 [Sat], 2017, 12:14

Fiber patch cable plays an important role in optical links. It is a fiber optic cable terminated with one fiber optic connector on both ends. Among the various types of fiber patch cables, LC to LC patch cable and SC fiber optic cable are two of the most commonly used fiber patch cables. It is not difficult to understand that the difference between LC and SC fiber patch cable lies in LC connector and SC connector. So, learning about LC connector and SC connector will help you know more about LC and SC fiber patch cable.



Overview of LC Connector And SC Connector


LC connector has a push and latch structure, with plastic shell and accurate 1.25mm ceramic ferrule. It is in small size and has good performance. Standing for Subscriber Connector or Square Connector or Standard Connector, SC connector is a kind of push and pull connector. It has a locking tab which can make accurate alignment through ceramic ferrule. The following figure shows LC connector and SC connector.


LC connector vs. SC connector



Comparison Between LC Connector And SC Connector


This part will make comparison between LC connector and SC connector from three aspects: size, handing and application.


Size: LC connector is half the size of SC connector. The ceramic ferrule of LC connector is 1.25mm, while SC connector’s ceramic ferrule is 2.5mm.


Handing: LC is a push and latch connector while SC is a push and pull connector. You can have better understanding of this from the above figure.


Application: Structured with half the footprint of the SC connector gives LC connector huge popularity in data communication and other high-density patch applications. In addition, the combination of small size and latch feature makes LC connector very popular and widely used for dense installation. While SC connector features low cost, simplicity as well as good durability, and it remains the second most common connector for polarization maintaining applications. The SC connector is ideally suited for data communication and telecommunication applications including point to point and passive optical networking.



Another Fiber Patch Cable


As LC connector and SC connector have their own advantages, both LC patch cable and SC patch cable are widely used in optical network deployment. But, is there a kind of fiber patch cable that combines LC connector and SC connector? The answer is “Yes”. There is a kind of SC to LC patch cable on the market. As the figure below shows, it is a high quality 50/125μm OM4 multimode fiber patch cable. This LC to SC cable is housed in a PVC (OFNR) retardant jacket, with UPC polish. It support 850/1300nm wavelength. It’s a great option for high-speed, high bandwidth transmissions over Gigabit Ethernet/fiber channel networks.


LC to SC cable



Conclusion


As the demand for higher bandwidth is increasing, fiber patch cable is commonly used in network deployment. Both LC patch cable and SC patch cable are designed to achieve such a kind of transmission, and they have their own advantages. What’s more, LC to SC fiber patch cable is also available to realize the transmission between devices terminated with LC and SC connector.

Characteristics of 10GBASE-T Technology

November 08 [Wed], 2017, 15:41

The rapid development of telecom technology is driving the increasing need for higher bandwidth in data center. In recent years, 10GBASE-T technology, which uses twisted-pair copper cabling and RJ45 interfaces, has been utilized by many data center managers. When it comes to 10GBASE-T, we firstly think of Ethernet network cable, such as Cat6 UTP cable and Cat6a cable which support 10G speed over 55 meters and 100 meters respectively. They are cheap and easy to run in data center. And this is just one of the most prominent characteristics of 10GBASE-T technology. This article is going to give a detailed introduction to characteristics of 10GBASE-T.



Background of 10GBASE-T

In data center, fiber optics also generally gain popularity because of their high speed and low latency. Many data center managers choose to use a combination of Direct Attach Copper (DAC) cables for short distances (up to 7 meters for Top-of-Rack connections) and fiber optic cabling for longer distances (for End-of-Row connections) to fulfill the migration to 10GbE networks. However, the costs associated with a Top-of-Rack switch and expensive cabling and optics limited the widespread adoption, especially in data centers where 1GbE is already broadly deployed. On the contrary, 10GBASE-T is backward compatible with 1000BASE-T, and it can be deployed in existing infrastructures that are cabled with Cat6 and Cat6a or greater cabling, helping data center managers to keep costs down while offering an easy migration path to 10GbE. Therefore, 10GBASE-T technology is extensively used. From the chart below, we can clearly see the growing trend of 10GBASE-T.


10G fiber optics vs. 10GBASE-T technology



Characteristics of 10GBASE-T

Reach: DAC cables support 10Gbps over very short distances, while 10GBASE-T technology can reach much longer reach with Cat6a cable, up to 100 meters. This makes 10GBASE-T cabling with Cat6a the best universal solution for 10GbE requirements in today’s data centers.


Backward compatibility: 10GBASE-T is backward compatible with 1000BASE-T, so it can work with existing structured cabling system. Unlike SFP+ cabling, a 10GBASE-T connection can auto-negotiate and auto-select the proper port speed when plugged into a GbE port. This gives data center managers much flexibility in cabling system.


Installation: Fiber optic cable is easily damaged, while Cat6 cable and Cat6a cable are easy to manage. Even if you want to DIY your own cable length, you just need bulk Ethernet cable, crimping tools and RJ45 connectors. As RJ45 connectors are compatible with existing 1GbE infrastructure, the installation of Cat6 and Cat6a cable is easy.


Power: When 10GBASE-T standard was released at the beginning, 10GBASE-T PHYs consumed too much power which limited its widespread adoption. With process improvements, both the power and cost of the latest generation of 10GBASE-T PHYs have reduced.


Cost: Fiber optic cable is more expensive than Ethernet network cable, and usually fiber optic cable is used for long transmission distance application. While Cat6 cable and Cat6a cable are low cost, which can provide cost-effective and easy-to-use solution for 10GBASE-T short distance network deployment.



Conclusion

10GbE has been the mainstream of telecom data center right now. The low cost and easy installation of 10GBASE-T makes it widely applied. In addition, 10GBASE-T provides investment protection via backward compatibility with 1GbE networks. On the market, there are not only Cat6 cable and Cat6a cable for 10GBASE-T cabling, but also some other 10GBASE-T products, such as 10GBASE-T switch and 10GBASE-T adapter. These simplifies data center networking deployments by providing an easier path to 10GbE infrastructure. These characteristics of 10GBASE-T will help drive 10GBASE-T to a prominent place in the data center.


Originally published at: http://www.fiber-optical-networking.com/characteristics-of-10gbase-t-technology.html

Talk About 2.5G And 5G

October 25 [Wed], 2017, 15:14

Network technology is developing rapidly. To keep up with the trend, data centers are required to upgrade constantly, from 10G to 40G, 40G to 100G and even 100G to 400G. However, for some small business data centers with 1G infrastructures, directly migrating from 1G to 10G is a little fast. Is there any slower Ethernet standards to fill the gap between 1G Ethernet and 10G Ethernet speeds? The answer is Yes—2.5 Ethernet and 5G Ethernet. This article will talk about 2.5G and 5G.



Overview of 2.5G And 5G

The physical (PHY) layer transmission technology of IEEE 802.3bz is based on 10GBASE-T, but operates at a lower signaling rate. By reducing the original signal rate to  1/4 or  1/2, the transfer rate drops to 2.5 or 5 Gbit/s, respectively. The spectral bandwidth of the signal is reduced accordingly, lowering the requirements on the cabling, so that 2.5GBASE-T and 5GBASE-T can be deployed at a cable length of 100 meters on unshielded Cat5e cable and Cat6 cable, respectively. The following figure shows the comparison of twisted pair based Ethernet technologies.


comparison of twisted pair based Ethernet technologies



Cons And Pros of 2.5G/5G Ethernet Standards

As 2.5G and 5G Ethernet standards came out after 10G Ethernet standard, there are mixed reviews for them. This part will focus on cons and pros of 2.5G/5G Ethernet standards.



Cons of 2.5G And 5G

When 2.5G Ethernet and 5G Ethernet standards came out, many people didn’t think much of them. They commented that:




  • 5GBase-T and 5GBase-T are more going to be used for wifi rollouts. And they are pretty much strictly for enterprise wireless deployments.

  • 10GbE is getting pretty cheap. Lots of new desktop motherboards now have 10G NICs inside them and the premium seems to be less than $100 too, which isn't too bad. What's missing is a bunch of 10G home switches and routers.

  • As for the availability, the 10G has 2 models out while the 2.5G and 5G are both "coming soon". Due to the economies of scale and the penetration, 10G already has IMO. While 2.5G and 5G will never be widely adopted or supported.

  • There are not that many chip sets that support 2.5G Ethernet and 5G Ethernet yet as they really only got finalized. Also, most cards that support them right now also support 10Gbe.


Pros of 2.5G And 5G

What exists is reasonable. One estimate is that there are 70 billion meters of Cat5e and Cat6 cabling have been sold between 2003 and 2014. With such a significant amount of existing infrastructure at stake, it's hardly surprising that most enterprises want to extend the existing cabling, component and equipment investments in the standard Ethernet wireless closet. Therefore, it is not difficult to find that 2.5G Ethernet and 5G Ethernet standards have their advantages.




  • Cat5 and Cat6 cabling can’t support 10G Ethernet up to 100 meters, but they will be able to support the emerging 2.5Gbps and 5Gbps standards, thereby preserving the value of the existing copper cable plant.

  • Adopting new 2.5G and 5G can satisfy the need of increasing data rates of wireless networking. The new 802.11ac Wi-Fi standard increases wireless bandwidth, supporting Ethernet speeds of 1.7 Gbps to 2.5 Gbps. With the coming of the next generation of wireless networking, 802.11ac Wi-Fi Wave 2, wireless network speeds could increase to as high as 6.8 Gbps.

  • Besides the need from the Wi-Fi industry, a 2.5G/5G version will also aid in other applications such as enterprise infrastructure, cellular Wi-Fi offloads, small cells, security cameras, multiple industrial uses and PoE technology.

  • These two new Ethernet standards have plenty of attributes to ensure success, such as ease of use, backward compatibility, faster speeds without requiring a cable upgrade, incremental speed upgrades, multi-vendor interoperability, not to mention optimized cost and performance.


Conclusion

From the above content, we can conclude that 2.5G/5G Ethernet standards have both pros and cons. For those who want to upgrade cabling system to 10G, 2.5G/5G is not useful. While for small business and home network, 2.5G/5G is a cost-effective solution. No matter what your cable plant is, choosing a suitable migration path is the most important thing.


Originally published at: http://www.fiber-optical-networking.com/talk-about-2-5g-and-5g.html

Introduction to HP ProCurve 2910al Switch Series

October 12 [Thu], 2017, 18:33

As telecom industry develops rapidly, the size of data center becomes larger and the data transmission speed becomes higher. And many data centers have moved to 40G and 100G. For small and middle size business, 10gb switch occupies a dominant market. HP switch, characterized by its high quality and low price, is popular with small data center network designers. This article will give an introduction to HP ProCurve 2910al Switch Series.



Overview

The HP ProCurve 2910al Switch Series consists of four 10gb ethernet switches, which are HP ProCurve 2910al-24G switch, HP ProCurve 2910al-24G-PoE+ switch, HP ProCurve 2910al-48G switch and HP ProCurve 2910al-48G-PoE+ switch. These switches can be deployed at enterprise edge and remote branch offices, converged networks, and data center top of rack. They are featured with IPv6 host which allows the switches to be managed and developed at the edge of IPv6 networks. Designed with up to four optional and flexible 10G ports (CX4 and/or SFP+), they can provide 10G connectivity. They are high-performance Gigabit access switches which can cost-effective and scalable solution for your network deployment. Here is a figure of HP ProCurve 2910al Switch Series for you.


HP ProCurve 2910al Switch Series



Network Ports of HP ProCurve 2910al Switch Series

Both HP ProCurve 2910al-24G switch and HP ProCurve 2910al-24G-PoE+ switch have twenty 10/100/1000 ports, four dual-personality ports one RJ45 serial console port and four 10G ports. While HP ProCurve 2910al-48G switch and HP ProCurve 2910al-48G-PoE+ switch have forty-four 10/100/1000 ports, four dual-personality ports one RJ45 serial console port and four 10G ports. With different port number, their switching capacities are different: 128 Gbps switching fabric with up to 95 Mpps for 24 port switch and 176 Gbps switching fabric with up to 131 Mpps for 48 port switch. For application in data center, different ports on the switch are connected with corresponding optical components.




  • 10/100/1000 ports: All these ports have the “Auto MDIX” feature, which means you can use either straight-through or crossover twisted-pair cables to connect any network devices to the switch.

  • Dual-personality ports: Each port can be used as either an RJ45 10/100/1000 port or as a mini-GBIC slot for use with mini-GBIC transceivers. By default, the RJ45 connectors are enabled. If a mini-GBIC is installed in a slot, it is enabled and the associated RJ45 connector is disabled and cannot be used. If the mini-GBIC is removed, the associated RJ45 port is automatically re-enabled.

  • 10G ports: These ports provide connectivity for 10G speed though either copper or fiber optic media (CX4 and/or SFP+).

  • For PoE+ switch, the RJ45 connector also supplies PoE+ power until a mini-GBIC is installed. That means the PoE+ power is turned off when a mini-GBIC is plugged in.


Cabling Solutions

With 10/100/1000 ports, HP ProCurve 2910al Switch Series can be used for 1G to 1G connection. Just respectively plug two SFP transceiver modules into 1G ports on two switches, then connect the two SFP transceiver modules with a fiber optic cable. Besides, 10G to 10G connection can be accomplished by using 10G DAC cable. Therefore, it is very simply to utilize HP ProCurve 2910al Switch Series in data center. The following table shows supported fiber optic transceiver, optical fiber cable for HP ProCurve 2910al Switch Series.


supported optical components for HP ProCurve 2910al Switch Series



Conclusion

In addition to providing cost-effective solution for small size business, a lifetime warranty offered by HP makes HP ProCurve 2910al Switch Series particularly a great choice. For transceiver and cable, you can go to FS.COM, which provides high quality compatible SFP, SFP+ transceiver, 10G SFP+ DAC cable and optical cable.

The Application of PoE

October 02 [Mon], 2017, 7:35

With the development of communication technology, different communication products are available on the market. Among them, there are some products popular with home network deployment, such as IP phone, wireless access point and IP camera. Recently, PoE technology is highly recommend for home network application. It is an IEEE standard for simultaneously transmitting data and low-voltage power throughout a network using a single Ethernet cable. This article will introduce the application of PoE.



PoE Devices

Before we come to the application of PoE, let’s have a look at PoE devices at first.



PoE Switch

A PoE switch is a network switch that has Power over Ethernet injection built-in. It is straightforward to add PoE to your network. Simply connect other network devices to the PoE switch as normal, and the switch will detect whether they are POE-compatible and enable power automatically. PoE switches are available to suit all applications, from low-cost unmanaged edge switches with a few ports, up to complex multi-port rack-mounted units with sophisticated management.



PoE Injector and PoE Splitter

A PoE injector is used to add PoE capability to regular non-POE network links. It can be used to upgrade existing LAN installations to PoE, and provide a versatile solution where fewer PoE ports are required. A PoE splitter also supplies power to a device and it is useful for deploying devices such as access points that are not POE ready and where there are no nearby AC outlets. The main difference between PoE injector and PoE splitter is that PoE splitter splits the power from the data to a separate input that the device can use, and there will be two cables for output: one for data and one for power. Here is a figure that show typical PoE Injector and PoE Splitter applications.



Typical PoE Injector and PoE Splitter Applications

From the figure we can see that, upgrading each network connection to PoE is as simple as patching it through the PoE injector, and as with PoE switch, power injection is controlled and automatic. It is also possible to upgrade powered devices to PoE by using a PoE splitter.



Why Should I Use PoE Devices?

Without PoE, you have to make a choice between running a power cable to the area where you want to deploy a network device or deploying network devices based on where existing power outlets are available. PoE provides greater flexibility and ensures that you will never have to compromise when deploying network devices. It dramatically simplifies the process of installing APs, IP cameras, IP phones, and other PoE enabled devices in hard-to-reach, outdoor, and remote areas.



Conclusion

With PoE technology, PoE switch is specifically designed to supply power to network devices. Managed and unmanaged PoE switch are available on the market, allowing you to transmit electrical power and data via a single network cable. This makes it easier than ever to expand your network into areas where power sockets are not accessible.

A Closer Look At Hub, Switch And Router

September 28 [Thu], 2017, 18:17

In Ethernet network deployment, there are three components which are similar in shape—hub, switch and router. All of them are small plastic or metal box-shaped electronic devices. However, they play different roles in the network. This article will guide you to have a closer look at hub, switch and router.



What is a Hub?

A hub, also called a network hub, is a common connection point for devices in a network. Containing multiple ports, the hub is commonly used to connect segments of a LAN. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.



hub

What is a Switch?

In a network, a switch filters and forwards packets between LAN segments. It usually operates at the data link layer (layer 2) and sometimes the network layer (layer 3) of the OSI Reference Model and therefore supports any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs.



PoE switch

What is a Router?

A router is designed to join together multiple LANs with a WAN. Serving as intermediate destination for network traffic, the router receives incoming network packets, looks inside each packet to identify the source and target network addresses, then forwards these packets where needed to ensure the data reaches its final destination.



router

Comparison

From the outside, hub, switch and router are identical:




  • They are small plastic or metal box-shaped electronic devices.

  • They make computers connect to them through network cable for getting access to the Internet.

  • They have a number of physical ports on the front or back of the unit that provide the connection points for computers, a connection for electric power and LED lights to display device status.


But when applied in a network, there are some differences among them:




  • We know that router is designed specifically to join the home network to the Internet for the purpose of Internet connection sharing. However, switch and hub are not capable of joining multiple networks or sharing an Internet connection. A network with only switch and hub must instead designate one computer as the gateway to the Internet, and that device must possess two network adapters for sharing, one for the home facing connection and one for the Internet facing connection.

  • Router is smarter in other ways. For example, router is featured with integrated DHCP server and network firewall support. Some wireless routers even incorporate a built-in Ethernet switch for supporting wired computer connections (and enabling network expansion via connecting additional switches if needed).

  • Router is the only one of these three devices that will allow you to share a single IP (Internet Protocol) address among multiple network clients.

  • Switch is higher-performance alternative to hub. For example, both pass data between devices connected to them, hub broadcasts the data to all other connected devices, while switch first determines which device is the intended recipient of the data and then sends it to that one device directly via a so-called "virtual circuit". On busy networks, this behavior allows switch to generate less overall network traffic compared to hubs.


hub, switch and router in a network

Conclusion

For home network deployment, switch and router are used more commonly, especially PoE switch and wireless router. I hope after reading this article, you can have a better understanding of hub, switch and router. FS.COM provides network cable with multiple lengths and colors for your network cabling.

A Closer Look at Mikrotik CRS317-1G-16S+RM

September 22 [Fri], 2017, 12:25

Though 40G and 100G network have been widely applied in many data center, for some small business, 10G network is enough and 10 gigabit switch still occupies a certain market position. Recently, many people are awaiting the release of Mikrotik CRS317-1G-16S+RM. Just a short while ago, it was available on the market. This article will guide you to have a closer look at Mikrotik CRS317-1G-16S+RM.



Overview

The new Cloud Router Switch Mikrotik 317-1G-16S+RM is a rack-mountable managed switch with Layer3 features. It has 16 SFP+ ports and one 1GbE copper port which can achieve high performance level 10GbE connectivity. Mikrotik CRS317-1G-16S+RM is powered by a next generation switching chip, giving you wire speed performance for all sixteen 10GbE ports with any Ethernet frame size. Here is a figure of Mikrotik CRS317-1G-16S+RM for you.



Mikrotik CRS317-1G-16S+RM



Shining Points

Compared to Mikrotik previous 10G switches, Mikrotik CRS317-1G-16S+RM has some shining points.


Hardware-based Spanning Tree Protocol (MSTP) and Link Aggregation (LACP): They provide enhanced protection and true professional performance for your demanding network.


Dual redundant power supplies and passive cooling case: The unit is completely silent. And for hot environments, like outdoor communications boxes, two redundant fans will automatically keep the system cool if needed.


Dual Boot option for SwOS or RouterOS: You can choose which operating system you prefer to use, RouterOS or SwOS. If you prefer to have a simplified switch only OS with more switch specific features, use SwOS. If you are used to Winbox and would like the ability to use routing and other Layer 3 features on some ports in your CRS, boot and use RouterOS. You can select the desired operating system from RouterOS, from SwOS or from the RouterBOOT loader settings.


In addition, Mikrotik CRS317-1G-16S+RM allows you to manage port-to-port forwarding, apply MAC filter, configure VLANs, mirror traffic, apply bandwidth limitation and even adjust some MAC and IP header fields. And its SFP+ cages support both 1.25 Gb SFP and 10 Gb SFP+ modules. The following figure shows the specifications of Mikrotik CRS317-1G-16S+RM.



specifications of Mikrotik CRS317-1G-16S+RM

Cabling Solutions

Mikrotik CRS317-1G-16S+RM has 16 SFP+ ports which support both 1.25G SFP and 10G SFP+ transceivers. For 1G short link connection, you can use Mikrotik compatible SFP transceiver module with multimode fiber; for 1G long transmission distance, you can use Mikrotik compatible SFP transceiver with single mode fiber optic cable. If you want to deploy 10G network, you can use 10G SFP+ SR transceiver and multimode fiber for short distance connectivity; you can also use 10G SFP+ LR transceiver and single mode fiber optic cable to transmit data signals over long distance. The figure below shows the cabling solution for Mikrotik CRS317-1G-16S+RM.



cabling solution for Mikrotik CRS317-1G-16S+RM

Conclusion

With several shining points and reasonable price, Mikrotik CRS317-1G-16S+RM has very good market prospects. For transceiver and cable used with Mikrotik CRS317-1G-16S+RM, you can come to FS.COM, which can promise the quality and provide custom service.

Copper-Based or Fiber-Based Home Network?

September 13 [Wed], 2017, 12:50

In an age of network technology developing rapidly, we enjoy the convenience brought by Internet all the time. We can know what is happening around us by surfing the Internet. Also, we can chat with friends far away from us on the computer. Still, higher bandwidth is needed. We know that fiber optic cable can provide higher bandwidth and longer transmission distance than Ethernet cable. Therefore, many broadband service providers utilize fiber optic cable to serve customers. That’s what we call FTTH (Fiber To the Home) project. According to FTTH project, there are two kinds of home network deployment—copper-based hone network and fiber-based home network. This article will introduce them to you.



FTTH

Copper-Based Home Network

In order to achieve quick installation, the broadband service provider will set a distribution point near or inside a building. Fiber optic cables are deployed in this building to connect every required house to this fiber distribution point, thus providing broadband services to end users. Usually, we will connect modem to Internet service port through RJ-11 cable or coax cable. Then we connect the modem to the router via Ethernet cable. The router can be connected with multiple Ethernet-ready devices. Finally, the copper-based home network is finished. However, in FTTH project, there is some differences. The fiber distribution cable from the broadband service provider is connected to an ONU (Optical Network Unit) which can convert the optical signals into electrical signals. Then we use Ethernet cable to connect ONU with router as well as router with Ethernet-ready device. At last, copper-based home network in FTTH project is completed. We can easily find that both of them utilize router to connect with Ethernet-ready device via Ethernet cable. However, the differences are that the previous one uses modem to connect with router, while the latter one uses ONU to connect with router.



Fiber-Based Home Network

It is not difficult to understand that in fiber-based home network, fiber optic cable is only used. To complete the deployment, we need some preparations. For connecting a computer directly to a fiber network, we can install a fiber optic PCI Ethernet adapter card which allows you to add a fiber port to your system through an available standard or low-profile PCI slot. And there are different interfaces for the card, such as LC, SC, FC, ST. Therefore, you can install corresponding fiber optic wall plates and use corresponding fiber optic cable. Once the fiber distribution cable is connected with the fiber optic wall plates, you can enjoy Internet with high bandwidth.



Copper-Based or Fiber-Based Home Network?

In fact, many people choose copper-based home network for the lower cost. And they often choose cat5e network cable or cat6 network cable for future-proof. But if you have higher requirement for bandwidth and do not worry about the budget, you can choose fiber-based home network. In addition, you do not have to think about future-proof. Besides, there is another thing that you have to think about carefully—the installation. From the perspective of installation, fiber optic cable is light in weight which makes it easier to handle than Ethernet cable. And it is thin, so it takes up much less space in cabling ducts. However, fiber optic cable is fragile which may be damaged during the installation. What we have discussed are just main differences between copper-based and fiber-based home network. Which one to choose depends on your actual requirement. I hope this article can help you make the right decision.

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