A Closer Look at HP ProCurve 2910al-24G Switch (J9145A)

Today, big data centers are upgraded from 10G to 40G or 100G, and some small homelabs migrate from 1G to 10G. For some small business data center, 24 port switch is enough. The switches produced by HP are popular with many data center designers for the high quality and low price. The HP ProCurve 2910al-24G Switch (J9145A) is highly recommended in many forums. This article will guide you to have a closer look at HP ProCurve 2910al-24G Switch (J9145A) switch.


The HP ProCurve 2910al-24G switch (J9145A) is a 24 port switch that can be used to build high-performance switched network. It offers low latency for high-speed networking. For port configuration, it has twenty 10/100/1000 ports, four dual-personality ports, one RJ45 serial console port and four 10G ports. The HP ProCurve 2910al-24G switch can provide the most flexible and easy-to-deploy uplinks in its class. It can be deployed at enterprise edge and remote branch offices, converged networks, and data center top of rack.

HP ProCurve 2910al-24G Switch (J9145A)

Applications of HP ProCurve 2910al-24G Switch

This part will give a detailed introduction to the network ports on HP ProCurve 2910al-24G switch and cabling solutions for the switch.

Ports on HP ProCurve 2910al-24G Switch
  • Twenty 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.
  • Four 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.
  • Four 10G ports: These ports provide connectivity for 10G speed though either copper or fiber optic media.
Cabling Solution

Since HP ProCurve 2910al-24G switch has 10/100/1000 ports, it can be used for 1G to 1G connection. As shown in the following figure, two 1000BASE-SX SFP transceiver modules are respectively plugged into 1G ports on two HP ProCurve 2910al-24G switches. Then these two 1000BASE-SX SFP transceiver modules are connected via a LC multimode fiber optic cable.

HP ProCurve 2910al-24G Switch (J9145A) for 1G connection

Designed with 10G ports, HP ProCurve 2910al-24G switch can realize 10G to 10G connection just like the above 1G connection. Just replace the 1000BASE-SX SFP transceiver module with 10GBASE-SR SFP+ transceiver. Besides, you can also accomplish 10G to 10 connection by using a 10G SFP+ to SFP+ DAC twinax cable. The following figure shows the cabling solution for you.

HP ProCurve 2910al-24G Switch (J9145A) for 10G connection


The HP ProCurve 2910al-24G switch (J9145A) is a high-performance Gigabit Ethernet switch. It is a good selection for small business network deployment. If you need compatible fiber optic transceiver and fiber optic cable for HP ProCurve 2910al-24G switch, you can have a look at FS.COM. The following table shows some compatible optical components. For more details, you can visit our site.

FS Compatible Optical Components

Originally published at: http://www.fiber-optical-networking.com/a-closer-look-at-hp-procurve-2910al-24g-switch-j9145a.html


Set Up 10G Home Network

Nowadays, nobody would deny the importance of the network. It has become an inseparable part of our daily life. As it developed, people’s demand for bandwidth is increasing. And 10G network is widely applied in small and middle sized business. In addition, 10G home network can be also commonly found. This article will share some tips to set up 10G home network.

Consideration Before Setting Up 10G Home Network

Why do you need 10G network? It is not difficult to find that almost everything nowadays rely on a fast and reliable network, which leads to tremendous traffic and applications running on the network. It is necessary to upgrade your home network to support the growing of your business. Setting up 10G home network avoids network congestion at busy times while improves your productivity.

What do you want from 10G home network? Before you start to set up the network, better planning is needed. You should ask yourself a few questions, such as how many computers, printers and other peripherals will connect to your network? How much wireless coverage will you need at your location? What type of mobile devices will need access to your network?

Needs for 10G Home Network
10G Switch

To build a 10G home network, several components are required: 10G core switch, access switch with 10G uplink, and 10G network interface cards for servers and storage devices. The past few years had witness the price dropping of 10G network switch. For example, the cost of Ubiquiti Unifi and Edgeswitch switch are only $200. You can also find many 10G switch under $550, such as FS.COM 10G network switch S3800-48T4S only costs $480 by offering 48 100/1000Base-T and 4 10GE SFP+ ports.

10G switch
10G Cabling

There are two cabling ways for 10G home network—10GBASE-T and 10G SFP+.

If you choose 10GBASE-T, then upgrading the existing 1G network to 10G can be simple. If 10G switch is designed with RJ45 ports, you can use the same RJ45 network cable to connect the 10G switch with your server, storage and some other switches. The only difference is to use Cat6a network cable instead of Cat5e and Cat6 cable, because Cat6a can support 10G data rate over 100 meters; or you can choose SFP+ 10GBASE-T module with 2.5W power consumption and a maximum distance of 30 meters.

10G cabling

For 10G network switch that supports 10G SFP+, you can use it with devices that come with 10G SFP+ ports, too. For server or storage devices with 10G SFP+ port, the most cost efficient way to connect them with 10G network switch is to use 10G DAC cable (direct attach cable). It is basically copper cable with SFP+ connector on both sides. But this cabling way is only suitable for short connectivity. For data link over 100 meters, a pair of SFP+ modules and the matching fiber optic cable are needed. Depending on the length required in home network, you can use 10G optics such as 10GBASE SR SFP module and multimode fiber to reach 300 meters.


For home network set up, 10G is a trend. But before you migrate your network to 10G, you still have to think about what you want or what you need. After that, the choice for components and cabling procedure can be easy. FS.COM provides comprehensive 10G solutions: all the components mentioned to build a 10G home network are available at FS.COM, including 10G switches, network cables, 10G SFP+ transceivers, fiber patch cables and DAC cables. For more details, please visit http://www.fs.com.

How Much Do You Know About PoE?

People’s increasing demand for more data traffic and higher data speed promotes the evolution of communication technology. The size of data center becomes larger and cabling system becomes more complicated. Recently, home network deployment springs up and a new network technology becomes a hot spot topic—PoE (Power over Ethernet). How much do you know about it? Do you use PoE devices? This article will focus on things related to PoE.


PoE technology allows network switches to transmit both power and data through an Ethernet cable at the same time. Take digital security camera for example. A digital security camera normally requires two connections to be made when it is installed: a network connection and a power connection. The former one makes the camera communicate with video recording and display equipment, while the latter one delivers the electrical power for the camera. However, if the camera is POE-enabled, only the network connection needs to be made, as it will receive its electrical power from this cable as well. Some equipment in home network usually use PoE, such as VoIP phone, IP camera and wireless access point.

POE applications


If you use PoE devices, you must have noticed that there are PoE+ devices on the market. What is the difference between them? PoE devices utilize the original PoE standard, IEEE 802.3af, which provides up to 15.4W of DC power to each device. While PoE+, also known as PoE class 4, is the latest standard, IEEE 802.3at, which provides up to 30W of power to each device. That’s to say PoE+ can provide almost twice as much power as PoE over a single Ethernet cable. High-powered IP devices such as PTZ cameras use PoE+. In addition, compatible NVRs use integrated PoE+ ports to provide power and PTZ commands to the camera, as well as video connection to the NVR.

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 Switch

Advantages of PoE

PoE technology brings several advantages to home network deployment:

Time and Cost Savings: A single Ethernet cable can support both data and power transmission. Besides, running Ethernet cable does not require a qualified electrician, it can be done by yourself.

Flexibility: Without being tethered to fixed power outlet, there are more placement options for devices such as IP cameras and wireless access points, and they can be repositioned easily if required.

Safety: PoE delivery is intelligent, and designed to protect network equipment from overload, underpowering, or incorrect installation.

Reliability: PoE power comes from a central and universally compatible source, rather than a collection of distributed wall adapters. It can be backed-up by an uninterruptible power supply, or controlled to easily disable or reset devices.

Scalability: Having power available on the network means that installation and distribution of network connections is simple and effective.


PoE technology realizes the power and data transmission over the same Ethernet cable at the same time, which makes home network deployment more convenient. FS.COM provides high quality PoE switches and all of them come with a one-year limited warranty, including any quality problems during the free maintenance. For more details, you can visit our site.

Originally published at: http://www.fiberopticshare.com/how-much-do-you-know-about-poe.html

Choose A Right Fiber Switch for Your Network

As an important part of the whole network deployment, switch can be divided into many types according to different requirements, such as managed switch, 8 port PoE switch, lay2 switch, core switch and son on. Also, there are various band manufacturers on the market. How to choose a right fiber switch from a broad range of switches for your network deployment? This article will share some tips with you.

Case Analysis

Before we come to the useful tips, let’s have a look at a case.

Case description: I’m planning a large network deployment and I need a 10Gb fibre switch as the core switch to connect the distribution switches in a Metropolitan Area Network to the Datacenter. The scenario is a campus type setup. Ten separate buildings, between 50 and 600 meters away, connecting centrally to a Datacenter and NOC. At least 12 ports are need. The goal is to have high-speed connections to all buildings, preferably 10GbE, using fiber optic cable for the distance. So far I’m hoping for an lay3 core switch with SFP+ ports.

Case analysis: At first, you have to make a decision on singlemode or multimode fiber. If you choose singlemode fiber, you can use SFP-10G-LR-S transceiver for up to 10km. If you plan to to use multimode fiber, you are limited to 400m (on OM4) when using SFP-10G-SR-S transceiver. As for switch, any modern Cisco switch with SFP+ slots will support those transceivers, such as Catalyst 2960X, 3560X, 3650, 3850 etc. For the main site where you are bringing in connection from 10 buildings, you will need a switch with more than a couple of SFP+ ports. You can choose from Catalyst 3850 (WS-C3850-12XS for example or -24XS or -48XS versions for more ports), Catalyst 4500X (WS-C4500X-16SFP+, also available in 32 port version and either model can add an 8 port expansion module).

Catalyst 3850 10G SFP+ Switches

Figure 1. Catalyst 3850 10G SFP+ Switches

Catalyst 4500X 10G SFP+ Switches

Figure 2. Catalyst 4500X 10G SFP+ Switches

In addition, the 3850 switches can be stacked (except the 48 port all-SFP model), making adding in redundancy quite simple. The 4500X requires configuration of a Virtual Switching System (VSS) pair across two switches for redundancy. Either way ends up presenting a single control plane for configuration. (i.e., one configuration to manage). If you’re not well-versed enough in Cisco to be familiar with the basic switching offerings, I would not advise the Nexus switches. NX-OS is a bit different than IOS operating system and the features of the Nexus switches are aligned more with data center use cases than enterprise core. That said, they are perfectly capable for most uses—they just require a bit different configuration.

Tips for Choosing A Right Fiber Switch

From the above case, we can summarize some tips:

First, you have to make sure what type of fiber optic cable you want to use. For long distance, singlemode fiber is recommended; for short distance, multimode fiber can do well.

Second, according to your choice of fiber optic cable, you have to make a decision on data rate fiber optic transceiver. You have to know that which level you want your network to perform at? 10G, 40G or 100G? As for transceiver, usually, SR transceiver is used for short link and LR transceiver is applied for long distance transmission.

Third, you must figure out how many ports you need. If you want 12 port 10G SFP+, then you can buy Catalyst 3850 WS-C3850-12XS. If you want both SFP and 10G SFP+ ports, then you can try MikroTik CRS226-24G-2S+IN.

Fourth, you have to know that the operating system in switch varies from each other, for example, Cisco Nexus Series switches use NX-OS operating system.


This article shows a case which can overall illustrate the steps when choosing a right switch. What’s more, compatible issues of transceiver is also a critical question that you have to notice. FS.COM can provide quality transceiver for your network deployment. Like Cisco 2960x switch and Cisco Catalyst 3850 switch mentioned above, we have Cisco 2960 x SFP compatibility transceiver and Cisco 3850 SFP compatibility transceiver. For more details, you can visit our site.

10Gb Switches Under $550

Though many enterprise networks and big data centers have been upgraded to 40G or 100G Ethernet network, 10G Ethernet network still has its place in small homelab deployment. As an important component, 10Gb switch has been a hot topic among many engineers. If you are familiar with fiber optic networking, you must know the following brands: MikroTik, Dell, Ubiquiti and so on. They all provide 10G switches. And this article want to share some 10Gb switches under $550 with you.

MikroTik CRS226-24G-2S+IN

It belongs to MikroTik Cloud Router Switch series and it is powered by RouterOS. It is designed with 24 1GbE ports and 2 10G SFP+ ports. The price of MikroTik CRS226-24G-2S+IN on ebay is about $260. The datasheet of MikroTik CRS226-24G-2S+IN is shown as below:

the datasheet of MikroTik CRS226-24G-2S+IN
MikroTik CRS226-24G-2S+RM

The CRS226-24G-2S+RM is available in a 1U rackmount case. It is a fully functional Layer 3 switch powered by RouterOS. It has 24 Gigabit ports and 2 SFP+ cages for 10G connectivity (first SFP port supports 1.25G/10G modules, second port only 10G modules). The price of MikroTik CRS226-24G-2S+RM on ebay is about $280. The datasheet of MikroTik CRS226-24G-2S+RM is shown as below:

the data sheet of MikroTik CRS226-24G-2S+RM
MikroTik CRS210-8G-2S+IN

MikroTik CRS210-8G-2S+IN is a “small size low cost” switch. It comes with 8 Gigabit Ethernet ports and 2 SFP+ cages for 10G connectivity (first port supports 1.25G/10G modules, second port only 10G modules). The price of MikroTik CRS210-8G-2S+IN on ebay is about $187. The datasheet of MikroTik CRS210-8G-2S+IN is shown as below:

the datasheet of MikroTik CRS210-8G-2S+IN
Dell N2024

Dell Networking N2000 is a series of energy-efficient and cost-effective 1GbE and 10GbE switches designed for modernizing and scaling network infrastructure. N2000 switches utilize a comprehensive enterprise-class Layer 2+ feature set, deliver consistent, simplified management and offer high-availability device and network design. Dell N2024 is designed with 24 1GbE ports and 2 10G SFP+ ports. The price of it on ebay is about $400. The datasheet of Dell N2024 is shown as below:

the datasheet of Dell N2024
Ubiquiti ES-48-Lite EdgeSwitch

The Ubiquiti EdgeSwitch Lite simultaneously processes traffic on all ports at line rate without any packet loss. It can provide total non-blocking throughput up to 70 Gbps for the 48-port model. Ubiquiti ES-48-Lite EdgeSwitch has 48 Gigabit RJ-45 ports, 2 SFP ports and 2 10G SFP+ ports. The price of it on Amazon is about $420. The datasheet of Ubiquiti ES-48-Lite EdgeSwitch is shown as below:

the datasheet of Ubiquiti ES-48-Lite EdgeSwitch
TP-Link T1700G-28TQ

TP-Link T1700G-28TQ is designed to build a network that is highly accessible, scalable, and robust. It supports L2 and L2+ features. The switch is equipped with 24 10/100/100Mbps RJ-45 ports and 4 dedicated 10G SFP+ slots. The price of TP-Link T1700G-28TQ is about $400. The datasheet of TP-Link T1700G-28TQ is shown as below:

the datasheet of TP-Link T1700G-28TQ
D-Link DGS-1510-28X

D-Link DGS-1510-28X is a 1U rackmount switch that can be either mounted using ears or used in desktop mode. The front of the switch has the majority of the unit’s functionality present. It has 24 1GbE ports and 4 10G SFP+ ports. The price of D-Link DGS-1510-28X is about $520 on Amazon. The datasheet of it is shown as below:

the datasheet of D-Link DGS-1510-28X
D-Link DGS-1510-20

D-Link DGS-1510-20 has 16 1G ports, 2 SFP ports and 2 10G SFP+ ports. It can provide a reliable, scalable, and modular interconnection between core switch and edge switch with rich capabilities and simplified flexibility. The price of D-Link DGS-1510-20 is about $319 on Amazon. The datasheet of D-Link DGS-1510-20is shown as below:

the datasheet of D-Link DGS-1510-20

10Gb switch is still popular with small data center managers. I hope this article can help you choose a cost-effective 10Gb switch. FS.COM can provide quality components for your fiber optic cabling, such as SFP transceiver, fiber optic cable, cable management accessory and so on. For more details, please visit our site.

How to Choose the Right Switch for Your Data Center?

If you plan to set up a 10G network, what do you need? The answer is 10G switch, 10G transceiver and optical cable. In addition, the option of switch is the most basic and important step to start the network deployment. How to choose the right switch for your data center? This article will introduce the three-tiered network model which can help you make a right choice.

Basic Knowledge of Switch

Before we come to the three-tiered network model, let’s learn about some basic knowledge of switch. All switches maintain a media access control (MAC) address-to-port table which is used to intelligently forward frames out the right ports to the intended destinations. Besides, all switches use standards-based protocols to segment traffic using the concept of virtual local area networks, 802.1q trunks and 802.3ad port aggregation. They also prevent network loops using one of the many variants of the 802.1d spanning-tree protocol.

Three-Tiered Network Model

We know that different types of switches have their own characteristics. And we have to compare them before making the decision. Here is an easy way to look at these differences that we can break them up into traditional three-tiered network model. The three tiers are core tier, distribution tier and access tier. Core switches interconnect with other core switches and down to the distribution tier. The distribution tier sits in between the core and the access tier. The access tier connects the entire structure to end devices like computers, printers and servers. To better understand this, here is a figure for you.

The Three-Tiered Network Model

Core Switch

The most striking feature of core switch is speed. The task of a core switch is routing at Layer 3 (the network layer) and switching at Layer 2 (the data link layer). In addition, core switch is high-throughput, high-performance packet and frame mover, which simply moves packets and frames from one core switch to another core switch, and eventually down to the next tier of switches—the distribution tier.

Distribution Switch

The function of distribution switch is connecting the core and access tier together on the network. Since there are many interconnections in a network, and distribution switch has higher port density than core switch, distribution switch also interconnects all access tier switches. What’s more, distribution switch enforces all forms of network policies.

Access Switch

Access switch directly interacts with end-user devices and it connects the majority of devices to the network. For this reason, the access tier typically has the highest port density of all switch types. Also, access switch usually provides the lowest throughput-per-port of all switches. It commonly supports Power over Ethernet, which can power many endpoint devices, including wireless access points and security cameras. Additionally, access switch is better able to interact with endpoints from a security perspective.


Tasks and workloads can be distinct for switches in different tiers. While all switches share universal functions like MAC tables, spanning-tree and trunking, they also have exclusive capabilities performed only within that network tier. Therefore, you have to figure out what type of switch you need. Then, you can buy compatible optical module and cable. FS.COM provides cost-effective switcher, modules and cables for you. For more details, please visit our site.

Originally published at: http://www.fiber-optical-networking.com/choose-right-switch-data-center.html

TP-Link T1700X-16TS Vs. T1700G-28TQ

Though 40G and 100G have been widely applied in big data center, 10G is still popular with small homelab. Many 10G switches on the market are designed to used with SFP transceiver module and 10G SFP+ transceiver module, while TP-Link has two 10G switches—T1700X-16TS And T1700G-28TQ, which are respectively characterized by 10GBASE-T RJ45 ports or 10/100/1000Mbps RJ45 Ports. This article will make a comparison between them.

Overview of TP-Link T1700X-16TS And T1700G-28TQ

As members of TP-Link’s T1700 Series 10G smart switches, TP-Link T1700X-16TS And T1700G-28TQ are designed to provide increased scalability, higher bandwidth, and enhanced performance. In addition, with physical stacking improving performance and simplifying management, both of them are able to provide reliable, cost-effective and resilient networking solutions for SMBs. As you can see, here are two figures. Figure 1. shows TP-Link T1700X-16TS and Figure 2. shows TP-Link T1700G-28TQ.


Figure 1. TP-Link T1700X-16TS


Figure 2. TP-Link T1700G-28TQ

TP-Link T1700X-16TS Vs. T1700G-28TQ
  • Both of them support rich L2 features, including 802.1Q VLAN, Port Isolation, Port Mirroring, STP/RSTP/MSTP, Link Aggregation Groups, and 802.3x Flow Control function.
  • Both of them support supports L2+ feature static routing, which provides simple network segmentation by routing internal transmissions to make the flow of network traffic more efficient.
  • Both of them support IP-MAC-Port Binding, Port Security, Storm control, and DHCP Snooping, which help to protect the network from broadcast storms, ARP attacks, and more.
  • Both of them support 802.1X, which allows network clients to be authenticated through external Radius servers and the guest VLAN function allows non-802.1X clients to access specific network resources.
  • Both of them utilize rich QoS policies to support voice, data, and video services on one network.
  • Both of them support various user-friendly standard management features, such as intuitive web-based Graphical User Interface (GUI), industry-standard Command Line Interface (CLI), SNMP (v1/2/3), and RMON. Therefore, they are easy to use and manage.
  • Both of them support Dual Image to provide improved reliability and network uptime.
  • TP-Link T1700X-16TS is equipped with 12 x 10GBASE-T RJ45 ports and 4 x 10G SFP+ ports, providing 320 Gbps switching capacity. While TP-Link T1700G-28TQ is designed with 24 x 1GE ports and 4 x 10G SFP+ ports. As TP-Link T1700G-28TQ supports up to 6 units in a stack, it is able to provide 768 Gbps switching capacity.
  • TP-Link T1700X-16TS utilizes 10GBASE-T technology which provides a cost-effective method for migrating from current network to 10G Ethernet by using existing Cat5e/Cat6 short connections (up to 55 meters) and Cat6a/Cat7 connections (up to 100 meters). While with true physical stacking technology, up to six T1700G-28TQ units can be stacked with a single IP address, which provides enhanced scalability, simple management, and increased redundancy for high-density deployment.
  • TP-Link T1700X-16TS is a little larger than TP-Link T1700G-28TQ. The size of the former one is 440 x 220 x 44mm, while the latter one is 440 x 180 x 44mm.
  • TP-Link T1700X-16TS is designed with two smart fans. While TP-Link T1700G-28TQ utilizes a fanless design, which reduces the amount of ambient noise.
  • TP-Link T1700X-16TS can be used with 10GBASE-T copper SFP+ transceiver, 10G SFP+ transceiver and DAC cable. While TP-Link T1700G-28TQ can be used with Ethernet cable, 100/1000BASE-T SFP transceiver, 10G SFP+ transceiver and DAC cable.
  • TP-Link T1700X-16TS is more expensive than TP-Link T1700G-28TQ. You can find TP-Link T1700X-16TS at $ 950 US dollars and TP-Link T1700G-28TQ at $ 308 US dollars on Amazon.

From the above comparison, we can find that both TP-Link T1700X-16TS and TP-Link T1700G-28TQ have their own advantages. Before you make a decision, you’d better figure our what you most care about. If you want to use 10GBASE-T copper SFP+ transceiver, you can choose TP-Link T1700X-16TS. But if you want lower budget, then buy TP-Link T1700G-28TQ. FS.COM can provide you cost-effective 10GBASE-T copper SFP+ transceiver, Ethernet cable, compatible SFP module, 10G SFP+ transceiver and DAC cable. if you want to know more details, please visit our site.

Originally published at: http://www.fiber-optical-networking.com/tp-link-t1700x-16ts-vs-t1700g-28tq.html