Månadsvis arkiv: juni 2018
As a core hardware device in data centers, network switch is vital for setting up a reliable network. Meanwhile 48 port switch with high port density has become popular among enterprise-class, small to midsize and even home users. However, how to buy an optimal 48 port switch for different network environment confuses many people. This article will make an analysis of 48 port switch for your buying guide.
To buy an optimal 48 port switch for your network, one should take several factors into consideration. Above all, choose managed over unmanaged if possible. 48 port managed switch has advanced features in reliable performance, traffic control, custom management and security regulation. For modern applications requiring for high network privacy and resiliency, 48 port gigabit switch managed is a must. Besides, here lists other important factors for 48 port switch managed selection.
What kind of virtualization applications are you implementing? Do they require extra high switching capacity? Generally 48 port switches in the market come with 2 different speed basis: 48 port gigabit switch and 48 port 10Gb switch. For average customers without special requirements 48 port gigabit switch can well meet their demands. But for speed pursuers 48 port 10Gb switch should be deployed for smooth operation in high traffic.
In addition to regular port, pay attention to the uplink port on 48 port switch. For multiple switch connection, 48 port gigabit switch often comes with several 10G SFP+ uplink ports whereas 10Gb switch comes with 40G QSFP+ or even 100G QSFP+ uplink ports for link aggregation. With a few corresponding uplink ports reserved, the 48 port gigabit switch can access to 10G core switch. And 48 port 10Gb switch can cater for future demands like next generation Metro, Dater Center and Enterprise networks.
For situations where power outlets are unavailable for cabling devices, 48 port PoE switch is a natural fit. A typical aforesaid case is for connecting Powered Devices (PD): IP cameras, VoIP phones and wireless access points (AP). By deploying 48 port PoE gigabit switch, you can easily put an IP surveillance camera anywhere on the ceiling.
You can easily get the best 48 port switch with all advanced features once budget is not a concern. However, most people should note cost/performance ratio to get good but cheap 48 port switch. For good purchasing experience, here recommend you 2 best 48 port switch for reference.
Without PoE capability, here recommend S3800-48T4S 48 port switch managed. It comes with 48 10/100/1000Mb auto-sensing RJ45 ports and 4 10GE SFP+ uplinks for cost-effective gigabit access or 10G link aggregation. Thus you can easily deploy this 48 port Metro Ethernet switch either in access layer or as core switch. Also, with dual power available this 48 port gigabit switch managed provides redundancy in emergent outage.
Figure 1: Deploying FS S3800-48T4S 48 port gigabit switch as access switch and S1600-48T4S 48 port PoE switch for PDs in network layer.
FS recommends S1600-48T4S 48 port PoE switch for both 600W high PoE power budget and reliable hardware with software integration. With 48 1000M RJ45 ports and 4 10G SFP+ uplinks compact in 1RU, this 48 port PoE gigabit switch owns high density and space saving features. As a 48 port gigabit switch managed, it supports both Web Interface and CLI command. Therefore it offers enterprise-class functionality of free configuration, strong security and reliable RSTP. As PoE+ switch, it complies IEEE802.3af/at standard. Thus the PoE network switch can auto figure which standard the PoE enabled device supports and then supply power to it. To deploy S1600-48T4S 48 port switch, you can flexibly put it in a rack, on a wall or on desktop. Power on the switch. Then connect over 40 APs or other PDs all over the building with only one each cable is required to run for them.
Figure 2: S1600-48T4S 48 port PoE switch connecting to VoIP phones, wireless APs and IP surveillance cameras for intelligent switching and networks growth.
Take a long-term view, 48 port switch with high port density provides abundant ports for your current devices and room for future network growth. Buying a best 48 port switch requires one to consider its own demands for specific applications. Based on which, one should take based speed, uplink port configuration, PoE capability and other personal requirement into consideration. For cheap 48 port gigabit switch, we recommend you classic one S3800-48T4S and 48 port PoE switch S1600-48T4S. For 48 port 10Gb switch, you can also find one with decent offer in FS.COM.
Since the introduce of Power over Ethernet (PoE) technology, PoE LAN switch has become popular among wide users. However, newbies are usually confused with the multiple port configuration on gigabit PoE switch. Since there are already regular PoE Ethernet ports for powered devices (PDs), what are the function of other ports like console port, SFP/SFP+ port and combo port on gigabit PoE switch? This article will take 8 port PoE switch, 24 port PoE switch and 48 port PoE switch as example to illustrate multiple port for your reference.
Like regular Ethernet switch, gigabit PoE switch often has one built-in serial console port, say FS S1130-8T2F 8 port PoE switch. It is the port for controlling and managing switch since there are no display device for a switch. Usually console port on gigabit PoE switch is an RJ45 receptacle. To connect a computer directly to the 8 port PoE switch, one should use dedicated rollover cable rather than Ethernet cable for connection.To use console port, you need physical access to the appliance. Therefore for terminals without serial console port, one should attach a corresponding adapter to the devices before cabling.
Figure 1: A display of one console port on FS S1130-8T2F 8 port PoE switch for control.
RJ45 port on gigabit PoE switch is the regular PoE port to achieve data and DC power transmission for PDs. It is an auto-sensing 10/100/1000Mb copper port supporting only Ethernet cable (Cat5e/6/6a/7) for connection. Thus RJ45 port connection is limited to 1G speed and 100m (330ft) short distance transmission. Then how about longer distance transmission scenario?
Different from RJ45 port, SFP port on gigabit PoE switch has the opt of both short and long reach. Why? The mini GBIC port has inherited the compatibility of either copper or optical SFP connection. Provided you employ the corresponding SFP module and cable on power over Ethernet switch. For long distance transmission, you should use fiber SFP modules with fiber patch cable for optical link. For short distance, you can opt to use RJ45 SFP module with copper network cable on gigabit PoE RJ45 switch for electrical link. Gigabit PoE switch often provides 2 SFP port for optical connection or uplink aggregation requirement, which enhances network adaption resiliency of PoE powered switch. For instance, S1400-24T4F 24 port PoE switch has 2 SFP ports reserved, which caters for fiber uplink to upper layer switch.
Figure 2: A display of RJ45 ports vs SFP ports on FS gigabit PoE switch.
To illustrate SFP+ port on PoE Ethernet switch, we’ll take S1600-48T4S 48 port PoE switch as example. This 48 port PoE gigabit switch comes with 1 console port, 48 PoE+ RJ45 ports and 4 SFP+ ports. The 48 RJ45 ports are PoE ready to power on dozens of VoIP phones, IP cameras and wireless APs. The 4 SFP+ ports on gigabit PoE switch serves as uplink to connect 10G SFP switch for uplink aggregation.
Figure 3: Deploying S1600-48T4S 48 port PoE switch as gigabit access switch to link 10G SFP switch via SFP+ ports, and connect PDs.
Though manufactures often clearly label combo ports on gigabit PoE switch for identification, many people don’t know its function. Take S1400-24T4F 24 port PoE switch as example, 2 combo ports are reserved on this 24 port PoE managed switch. The combo port compounds RJ45 and SFP front ends in one single interface, thus it supports either copper or optical SFP link. However, you cannot use these two physical accesses on PoE network switch simultaneously. That is, once you activate combo SFP port on gigabit PoE switch, you also disable the opposite copper port.
Figure 4: A demonstration of combo ports on gigabit PoE switch: S1400-24T4F 24 port PoE switch from FS.COM.
To sum up, multiple ports on gigabit PoE switch owns different functionality, which enhances switching resiliency for different network cabling. RJ45 port on PoE powered switch is an normal one for copper link to PDs. SFP port of gigabit PoE switch provides options of fiber cabling or copper cabling due to fiber SFP module and RJ45 SFP module compatibility. 10G SFP+ port on 48 port PoE switch serves as uplink port for link aggregation in network layer. Combo port compounds RJ45 and SFP interface in one single fabric on gigabit PoE switch. So it helps to extend flexibility of physical access through the network. For 8/24/48 port cheap PoE switch buying, you can find decent offer here with optimal port configuration.
The telecommunication industry has always been developing with leaps and bounds and technology changes with each passing day. For common people with few network knowledge, the evolving optional network devices like PoE switch can be a big puzzle. What is PoE? What is the distinction of gigabit PoE switch vs normal switch? Read this article for reference.
PoE, abbreviation of Power over Ethernet, is a technology that enables Ethernet cable to supply power. Thus power sourcing equipment (PSE) can transmit both data and power to powered devices (PD) simultaneously via one single cable. PoE has two standards available on network switch: IEEE 802.3af/at. The former orginal PoE standard is defined in 2003, which provides 15.4 W power budget to PDs (12.95 W available for accessing). The latter PoE+/PoE Plus standard defined in 2009 provides up to 30 W (25.5 W) power.
PoE switch is one of the two types of PSE for PoE implement: endspan PoE switch and midspan PoE injector. To enhance network resiliency, gigabit PoE switches provided by FS.COM are highly compatible IEEE 802.3af/at managed PoE+ switches. For example, S1130-8T2F managed gigabit 8 port PoE switch with 2 SFP ports can connect to gigabit Ethernet network while S1600-48T4S 48 port PoE switch can use the SFP+ ports to connect with 10gbe switch for higher performance data transfer.
Figure 1: FS S1130-8T2F 8 port PoE managed switch can be flexibly placed in a rack, on a wall or on desktop.
In a word, PoE switch and normal switch differ from PoE accessibility. A regular Ethernet switch is not PoE enabled to supply power for end users over Ethernet. Therefore the user requires one extra cable to connect power outlets. However a normal switch can also become PoE ready by employing a midspan injector between the switch and PDs. The injector will add electrical power while receiving data signal from Ethernet switch end cable, and then deliver both data and power to PDs. But in this circumstance the injector also needs a wire for power. When using gigabit PoE switch, only one power cable is required. Then the PDs can be directly plugged into the PoE gigabit switch port for both data transmission and power supply. The illustration and Table below list the differences of employing PoE switch vs normal switch while adding PoE to network.
Figure 2: An illustration of deploying PoE gigabit switch vs normal switch when adding PoE to network.
|PoE Switch||Normal Switch|
|Required Accessories||Easy for management (power and transmission)||Require separate two wires for powering on normal switch and PoE injector|
|PoE Access Method||Upgrade to PoE network by replacing the normal Ethernet switch with PoE Ethernet switch||Install PoE injector between switch and PDs to add PoE capability to the existing non-PoE switch|
|Emergency Reaction||Potential chance of the whole system’s outage||Only one device be affected|
As mentioned above, PoE switch differs from normal switch for supplying power to PDs in the meantime of data delivery. Though the normal switch system can also acquire PoE by installing injector, PoE endspan has the superiority of direct Power over Ethernet ability. Counting to this, gigabit PoE switch owns edges over normal switch as follows. First, it enables PDs like IP surveillance cameras to be placed almost anywhere: on the ceiling, concealed in a wall, or even underwater while only one cable is needed to run to them. Second, it saves extra expanse and time for power cabling and injector installation. Third, with simplified cabling of all PDs directly connected to gigabit PoE switch, the data center is easy for management and control. Besides, PoE gigabit switch itself is designed with advanced features like high-performance hardware with software, auto-sensing PoE compatibility, strong network security and environmental adaptability.
Gigabit PoE switch can supply power to PDs in the meantime of data transmission via one single Ethernet cable while normal switch can only send data to them. For PoE implement, normal switch requires a power-on auxiliary injector as midspan between switch and powered devices. Thus PoE switch owns advantages of direct PoE connection, easy and flexible placement, cost-efficiency, simplified management and etc. For any applications of IP surveillance cameras, VoIP phones and wireless APs, PoE switch over normal switch is a good solution to go.
With the tendency for higher speed network, 10Gb switch has already become familiar with home individuals, no longer the privilege of enterprise operators. However, the issue of SFP to SFP+ compatibility always puzzles many network switch users, even some engineers. Will 1Gb SFP transceivers work with 10Gb SFP+ ports on 10Gb switch? Or will 10Gb SFP+ running at 1Gb to link gigabit switch? And If 10Gb optics in a switch can auto-negotiate to 1Gb when the other end is 1Gb? All these related questions origin from the link between 10Gb SFP+ slots on 10Gb switch and 1Gb SFP ports on gigabit switch. Thus this article will reveal the mask of SFP to SFP+ compatibility from this point of view.
Will 1Gb SFP transceivers/modules work with 10Gb SFP+ ports? The answer is “Yes” in most cases. There are many vendors providing 10Gb switches that can take both a 10G SFP+ and a 1G SFP in the 10Gb SFP+ slot, but not at the same time for obvious reasons. This option is supported by dual speed operation. So before plugging a SFP transceiver into the SFP+ port on your 10GbE switch, one must consult your rep to make sure the 10Gb switch port support dual speed.
To achieve link of 10Gb switch port to gigabit switch port, here is a simple guide. Install a 1Gb SFP module on the 10GbE switch SFP+ port and the gigabit switch 1Gb SFP port respectively, then connect the 10Gb switch and the gigabit switch with corresponding 1Gb SFP fiber cable or Ethernet copper cable (eg. Cat6).
Will 10Gb SFP+ running at 1Gb? The answer is definitely “No”. SFP optics do work in SFP+ slots in most cases, but SFP+ optics on 10Gb switch can never work in SFP slots on gigabit switch. The reason is about a power availability thing. As we know, once an module is installed, the speed of the port is decided. Most SFP+ slots are backward compatible with SFP modules to run at 1G speed. However, the SFP slots on gigabit switch cannot support the 10G speed required by SFP+ modules. For instance, most Cisco and FS 10Gb switches support 10G SFP+ and 1G SFP optics on their SFP+ ports. But some Brocade gear and HP A-series models are SFP+ only. One need to double check the compatibility of this switch with the vendor rep.
FS 10Gb switch SFP+ port links to gigabit switch SFP port via 1G SFP modules and fiber patch cable.
Unlike copper SFP modules supporting 10/100/1000 auto-sensing, fiber optics do not support auto-negotiation. Because this technology is based on electrical pluses but not optical pluses. Thus 10Gb SFP+ optics on 10Gb switch can not auto-negotiate down to 1Gb if the other end is gigabit switch. In fact, most SFP and SFP+ transceivers only run at its rated speed and the transceivers at both end of the cable should at the same speed. For example, if a 10Gb SFP+ module is plugged into the 10Gb switch port, it will only run at 10Gb. In this case if you link it to the gigabit switch port, it will not work. When sticking a 1Gb SFP module in the 10G SFP+ port, the 10Gb switch will only run at 1Gb. As thus you can link it to gigabit switch.
Sometimes the 10GbE switch port would lock the speed at 1G until you reconfigure the switch to 10G. It is noted that SFP+ port usually enables a speed under 1G, which means one cannot insert 100Base SFP modules into SFP+ ports on 10Gb switch.
For the issue of SFP to SFP+ compatibility, a simple response is that most SFP+ can take SFP but not vice versa. The uncertain situation requires one to ask their switch vendors for clear reply. Thus 10Gb switch port is possible to link to gigabit switch port to run at 1G speed. The only thing you need to do is to plug each the aforesaid port with a 1Gb SFP module, and then connect the two modules on the 10Gb switch and the gigabit switch with a corresponding fiber patch cable or Ethernet copper cable.
The current information ear is and will continue to be in full swing while pulsed by networking high traffic and applications. Meanwhile, with productivity greatly improved by technologies like VLAN, Cloud Computing and IEEE 802.11ac, gigabit Ethernet switch can no longer bear the high pressure in enterprise-class data centers, SMBs and even homes. In this circumstance 10GbE network is required for meeting the demands. And as a core component, 10GbE switch is dispensable for 10G network upgrade. So here provides a guide for buying 10GbE switch for SMB and offers some cost-effective 10gbe switches for your selection.
For the high expense out of advanced performance required by 10GbE network, the purchase market of 10GbE switch is generally not very optimistic for SMBs. Searching on many forums and communities for 10Gb switch, we can see Cisco switches are always the hot topic. However, one will hesitate to pick Cisco and some other brand-name 10GbE switches especially for SMB out of budget concerns. In this regard FS specially designed a series of 10Gb switches for SMBs under cost-effectiveness and equal performance concerns. By deploying such 10GbE switch to your SMB network, one can benefit from reduced response time, smooth operation in high traffic and improved work efficiency.
Based on budget saving of SMBs, here are some considerations for choosing an affordable 10GbE switch.
In the market the 1/10Gb switch is often equipped with 4 × SFP+ uplink ports for 10G uplink network, which is very suitable for small, medium and some start-up business. For the demand of remaining your gigabit for 1G devices, you should also consider about the gigabit ports with 12/24/32/48 ports for selection.
Stackable 10GbE switch is very common in network upgrade for simplified management and link aggregation. Taking FS S3800 Series managed stackable switches as example. With 4 × S3800-24T4S 10Gb switch stacked together to work as a whole system, operators no longer need to control each switch individually but managed it as a single switch with one console port. Moreover, it will become very easy to add and remove any switch from the stacking system.
Figure 1: Using 4 × S3800-24T4S stackable 24 port switches for link aggregation in a data center.
Unmanged 10GbE switch is a configuration fixed plug-and-play switch, which not supports any customized configuration. Managed 10Gb switch has partly managed smart switch and fully managed switch option. Generally for optimized performance of 10G network, managed switch is dispensable for SMB to ensure smooth operation in heavy workload. Also, it provides traffic control, customization and security monitoring.
Getting rid of extra power cable for connecting devices with power outlet, PoE 10GbE switch provides placing flexibility to powered devices such as IP phones and wireless access points. For instance, FS S1600-48T4S 48 port PoE+ switch with 4 × 10G SFP+ ports can supply power to a series PDs with PoE budget up to 600W. However, if power supply is not a question, one can pick non-PoE for budget saving.
After explaining the aforesaid factors for 10GbE switch selection, we’ll give you a clue for affordable options of 10Gb switch. For SMBs and home labs, the most cost-effective solution is to pick up gigabit switch with 10G uplink rather than 10G core switch. Here we recommend you such managed 10GbE switches, ranging from 1000Base-T copper switch or SFP switch with 24/48 ports and PoE availability.
For SMB with very tight budget, one can go for S3700/S3800 Series. S1600-48T4S 10Gb switch is also a cost-saving way to go for PoE technology. It is noted that SFP switch often costs more than copper switch, but owns higher switch class and functionality. Say, S5800-48F4S 10GbE switch is a layer2/3 SFP switch, natural fit for applications of data centers as carrier access switch. It has low latency and advanced features such as MLAG nd SFLOW.
Figure 2: Deploying S3800-48T4S SFP switch and S1600-48T4S PoE switch as access switches in 10G network.
For 10GbE switch option of small to medium business, budget is always a big concern. Based on this regard, one should consider buying gigabit Ethernet switch with 10G uplink. Further, taking a comprehensive consideration of number of port, managed ability, PoE and stackability will make the best decision of 10Gb switch.
Touching on switching capacity of the modern networks, the invariant rule is: the faster, the better. Of course for large enterprises, 10G network is a lower value. And more often 40G even 100G network is required for data centers. However, for individuals, small and medium-sized business (SMB), 10G network is often out of reach for exorbitant price of 10gbe switch. In this case, Ethernet switch with 10G uplink can help to achieve 10G network. This article will recommend affordable managed gigabit switch with 10G uplink.
Generally there are two gigabit switch with 10G uplink solutions: 1000base-T copper switch and 1G SFP fiber switch. In the current market, 1000base-T gigabit switch with 10G uplink is usually more popular, especially with home individuals, office users and SMBs. The main reason is largely traced back to price discrimination between them. RJ45 copper gigabit switch employs existing Ethernet copper cable (Cat5e/6, etc.) as medium to transmit data, which saves one budget for matched fiber optics of SFP switch. Moreover, the 1000base-T copper switch is backward compatible with legacy networks. However, 1G SFP link owns the edges of reduced electromagnetic interference, lower latency and power consumption over copper link. For advanced users sensitive to aforesaid factors, one can consider taking gigabit switch with SFP uplink.
This figure shows FS S3800-24T4S copper gigabit switch vs S3800-24F4S 1GE SFP switch with 10G uplink.
For 1000Base-T copper gigabit switch, here recommends both PoE and non-PoE ones for your selection guide.
For non-PoE gigabit switch, here strongly recommends you FS S3800-24T4S 24 port switch and S3800-48T4S 48 port switch. They come with 24/48-port 10/100/1000base-T ports with 4 x 10GE SFP+ uplinks. Both of them come with single power and dual power version for selection. They are high performance Metro Ethernet switch, and designed to cater for cost-efficient gigabit access or aggregation for 10G uplink networks.
|1000Base-T RJ45 Port||24||48|
|Switch Class||Layer 2+||Layer 2+|
For Gigabit PoE switch with 10G uplink, here recommends you S1600-48T4S 48 port PoE+ switch with 4 SFP+. The 48 port PoE switch can better fit for SMBs or enterprise class network as access switch. It can be mounted in a rack, on a wall or on desktop. One can connects it to VoIP phones, wireless APs and IP cameras for intelligent switching and network growth. Besides this 48 port PoE switch, 8 port gigabit switch and 24 port PoE switch are also available. Generally speaking, 8 port gigabit switch is suitable for home use. And 24 port PoE switch is commonly deployed in small business with few connections.
Deploying FS S3800-48T4S 48 port switch and S1600-48T4S 48 port PoE+ gigabit switch with 4 x 10G uplink in access layer.
For gigabit SFP switch with 10G link, here recommends S3800-24F4S. It comes with 4 x 1GE combo ports, 20 x 1G SFP ports and 4 x 10GE SFP+ ports. This 24 port gigabit switch comes with single power and dual power version for selection. For 48 port switch demand, go for S5800-48F4S. It is a Layer 2/3 switch with 4 x 10G SFP+ uplinks. The table below lists the details of these two Ethernet switches.
|FS Fiber SFP Gigabit Switch||S3800-24F4S||S5800-48F4S|
|Port Configuration||24 x 1G SFP ports, 4 x 10G SFP+ uplinks||48 x 1G SFP ports, 4 x 10G SFP+ uplinks|
|Switch Class||Layer 2+||Layer 2/3|
|Max. Power Consumption||60W||75W|
For 10G network, deploying gigabit switch with 10G uplink can largely save you budget. No matter copper RJ45 1000base-T switch or 1GE SFP switch, you should consider your own requirements before purchasing an Ethernet switch. Gigabit switches with different ports have been recommended in this post, including 8 port gigabit switch, 24 port switch and 48 port switch. All those can be found in FS.COM with the most competitive price.