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.

Overview

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

Conclusion

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.

FS Compatible Optical Components

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

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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
Conclusion

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 fiber optic cabling, such as SFP transceiver, fiber optic cable, cable management accessory and so on.

Introduction to BiDi SFP

SFP, a compact and hot-pluggable transceiver, is popular in telecommunication and data communication. As we know, most SFP transceivers utilize two fibers to achieve the data transmission. Nowadays, more and more people realize that the cost of fiber counts accounts for a large proportion, so it is necessary to find a cost-effective solution in the communication field. As an optimized version of SFP transceiver, BiDi SFP may be a good option. The following passage will focus on the overview, connection method and application of BiDi SFP.

Overview of BiDi SFP

BiDi SFP is a compact transceiver module which utilizes WDM (Wavelength Division Multiplexing) technology. The technology is increasingly popular among telecommunication and service operators because it can mix and transmit multiple wavelengths simultaneously over same unique fiber strand. With the use of this technology, BiDi SFP is specially designed for the high performance integrated duplex data link over a single optical fiber. BiDi SFP is compliant with the SFP multi-source agreement (MSA), and it interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable. Here is a figure of BiDi SFP, and it can help you get a general understanding of BiDi SFP’s connection method before we move on.

Structure of BiDi SFP Transceiver

Connection Method

BiDi SFP uses only one port fitted with an integral WDM coupler, also known as diplexer. The WDM coupler can combine and separate data transmitted over a single fiber based on different wavelengths of the light. For this reason, BiDi transceivers are also referred as WDM transceivers. To work effectively, BiDi SFP must be deployed in matched pairs with the opposite wavelength together. Here is a figure to help you get intuitive understanding of this. If paired BiDi transceivers are being used to connect Device A (Upstream) and Device B (Downstream), then Transceiver A’s diplexer must have a receiving wavelength of 1550nm and a transmit wavelength of 1310nm; Transceiver B’s diplexer must have a receiving wavelength of 1310nm and a transmit wavelength of 1550nm.

BiDi SFP Connection Method

Application

At present, the BiDi SFP is usually used in FTTx deployment P2P (point to point) connection. In a FTTH deployment, optical fibers are used directly to connect the central office and the customer premises equipment. But because the use of P2P structure, the customer premises equipment has to be connected to the central office on a dedicated fiber. BiDi SFP can realize a bi-directional communication on a single fiber by using WDM. This makes the connection between central office and customer premises equipment become more simple. In addition, BiDi SFP can be also applied in WDM fast Ethernet links, metropolitan area network, and inter-system communication between servers, switches, routers, OADM, etc.

Conclusion

With the increasing demand of high density and reliability of data transmission over long distance, more and more optical communication products appear on the market. The deployment of BiDi SFP instantly doubles the bandwidth capacity of the existing optical fiber infrastructure which can be a cost-effective solution in the applications. BiDi SFP is a popular industry format jointly developed and supported by many network component vendors mainly because it saves the cost of fiber. It is certain to be the first option when choosing fiber optic transceiver applied to large data rate and long distance data transmission.