How to Set the Domain ID to Implement the Switches

Each switch in the fabric must have a unique Domain ID. The Domain ID can be set using the configure command. You can also allow the Domain ID to be set automatically. The default Domain ID for the SAN768B IS 1.

To set the Domain ID, follow these steps:

1.Enter the fabric show command to determine the current Domain IDS available.

2.Enter the switch Disable command to disable the SAN768B

3.Enter the configure command. Enter y at the fabric parameters pro met: Fabric parameters (yes, y, no, n)

4.Then, enter a unique Domain ID

5.Complete the remaining prompts or press Ctrl+D to accept the other setting and to exit.

6.Enter the switch Enable command to re-enable the SAN768B.

7.Add SFPs and fiber optic cables to the ports as required. Cables: The ports and cables that are used in trunking groups must meet specific requirements.

8.Remove the shipping plug from the ports to be used.

9.Position the SFP so that the key (the tab near the cable-end of the SFP)is on top, and insert the SFP into the port until it is firmly seated and the latching mechanism makes a clicking sound. For specific instructions, see the SFP manufacture’s documentation. Attention: The SFP module is keyed so that it can only be inserted correctly into the port. If the module does not slide in easily, make sure it is not upside down.

10.Connect the fiber optic cable to the SFPs as appropriate to the fabric topology by positioning each cable so that the key (the ridge on one side of the cable connector) is aligned with the slot in the SFP, then inserting the cable into the SFP until it is firmly seated and the latching mechanism makes a clicking sound.
Attention: The cable is keyed so that it can only be inserted correctly into the SFP, if the cable does not slide in easily, try turning it over.

11.Verify the correct operation of the switch.

12.Enter the following command at the Telnet prompt to verify the switch and port status

Switch show Backups: This command provides information about the status of the switch and the ports. Always back up to the configuration after any initial configuration changes and then perform backups periodically thereafter. This ensure that a complete configuration is available if ever required for uploading to a replacement switch. Switch configuration is backed up by issuing a configupload to the FTP server. You must install a SFP module ineach interface connector on the controller where a fiber-optic cable is to be installed.

To give its customers flexibility as to the type of Ethernet links, even after the customer has bought the switch, Cisco switches include some physical ports whose port hardware can be changed later, after you purchase the switch. One type of port is called a gigabit interface converter(GBIC), which happened to first arrive on the market around the same time as Gigabit Ethernet, so it was given the same “gigabit”
name. More recently, improved smaller types of removable interfaces, called small form-factor pluggable (SFP), provide the same function of giving users the ability to swap hardware and change the type of physical link.

For example, Cisco SFP 10G SR, The Cisco SFP-10G-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible. and its feature is that SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector.

Cisco SFP-H10GB-CU1M, a kind of SFP-H10GB-CU1M, 1-m 10G SFP+ Twinax cable assembly and belongs to passive device. This is a 10-meter long twinax SFP cable providing 10 Gbps Ethernet. At a length of 10 meters, this cable requires active transceivers at both ends.

As you know, I work at Fiberstrore now, it designs, manufactures, and sells a broad portfolio of optical communication products, including passive optical network, or PON, subsystems, optical transceivers used in the enterprise, access, and metropolitan segments of the market, as well as other optical components, modules, and subsystems. And there is a good news that many products are in the price at a discount of 30% now and welcome to viit our online Fiberstore.

Article Source: http://www.fiber-optic-transceiver-module.com/

The Development Of The SFP Optical Module

First of all, let me introduce the development of GBIC and SFF.

A Gigabit Interface Converter is a hot-swappable transceiver for networking equipment. It could connect a Gigabit Ethernet, fibre channel as well as other direct attach cable to a compatible network card. It is usually found in computer networks that depend upon flexibility in the kinds of connections they could accommodate.

Also known from the acronym GBIC, a Gigabit Interface Converter can be quickly replaced without powering down the server it is attached with. A GBIC-compatible network card can be linked to any of the supported high-speed media. A GBIC is available for every of several fibre channel cable types and also Gigabit Ethernet. This provides network designers and maintainers the pliability to increase and reconfigure their networks when needed.

The Small Form Factor (SFF) Committee, an ad hoc industry group, developed a Gigabit Interface Converter specification in the late 1990s. Called SFF-8053, it establishes a standard electronic interface and a mechanical form factor for these devices. Originally written for a fibre channel converter design, the spec now includes Gigabit Ethernet-specific information too. It also details algorithms that can be used for GBIC management and error recovery.

A Gigabit Ethernet GBIC generally carries a microcontroller and a 1000Base-T SFP Transceiver. They are able to make contact with each other over the Inter-Integrated Circuit (I2C) bus. Signals to and from the network card connector can also travel over this serial bus. On the network side, a transformer couples the transceiver signals to a Registered Jack 45 (RJ45) connector. 

The form factor of a Gigabit Interface Converter was originally designed for a fibre channel connection. A physically smaller variety known as a Small Form Factor Pluggable transceiver (SFP Transceiver) also exists. Sometimes called a mini-GBIC, it offers a similar flexibility as a standard GBIC in a smaller package. A 10 Gigabit SFP transceiver, specially designed for the higher-speed network technology, is slightly larger.

The development of the SFP optical module

SFF and GBIC module in the process of development have very special history, with the rapid development of network, they are gradually replaced by the SFP optical module.

SFP optical module, the development of SFF and module GBIC light because of SFF and module GBIC is 1 x9 light after two direction of products, have their own advantages: miniaturization and hot plug.

Inherited the SFP optical module GBIC hotplug characteristics, also draw lessons from the SFF miniaturization advantage.By LC, the volume is only 1/2 to 1/3 of the GBIC module, greatly increased the port density of network equipments, conform to the trend of rapid development of network, so has been the most widely fan used, the main equipment manufacturers, with no exception to discard the GBIC products, only USES the SFP optical module products.Due to adopt a unified standard, each manufacturer of SFP product can be compatible, SFP products can be used as a single network equipment procurement.

Although currently there has been many higher technology, update of light module products, however the SFP module is constantly exist for a long time.After the SFP optical module development mainly toward a higher rate of development, now has 10g, 40g to 100g optical module, etc.After the SFP + light module believe SFP is widely used a generation of products.

No matter what kind of SFP, you can find in the fibestore. And now, all Transceiver Modules are 30% Off!

SFP Transceiver Introduction

What Is SFP?

A small form-factor pluggable (SFP) transceiver is a compact, hot-swappable, input/output transceiver used in data communication and telecommunications networks. SFP interfaces between communication devices like switches, routers and fiber optic cables, and performs conversions between optical and electrical signals. SFP transceivers support communications standards including synchronous optical networking (SONET)/synchronous digital hierarchy (SDH), gigabit ethernet and fiber channel. And also they permit the transport of fast Ethernet and gigabit Ethernet LAN packets over time-division-multiplexing-based WANs, along with the transmission of E1/T1 streams over packet-switched networks.

SFP Module is usually called a mini gigabit interface converter (GBIC) because its function is comparable to the GBIC transceiver however with smaller sized dimensions.The SFP transceiver is specified by the SFP Transceiver Multisource Agreement (MSA), that is developed and it is followed by different transceiver manufacturers.

SFP Transceivers have a diverse range of detachable interfaces to multimode/single-mode fiber optics, which allows users to select the appropriate transceiver according to the required optical range for the network.

SFP transceivers are available with copper cable interfaces, which allows a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cables. Modern optical SFP transceivers support digital diagnostics monitoring (DDM) functions, also known as digital optical monitoring (DOM). This feature gives users the capability to monitor the real-time parameters of SFP, such as optical output power, optical input power, temperature, laser-bias current and transceiver supply voltage.

Kinds Of SFP Transceiver Modules

SFP Transceivers can be purchased with a number of transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type (e.g. multi-mode fiber or single-mode fiber).

On the market, optical SFP modules are generally for sale in several different categories:

1.For multi-mode fiber, with black or beige extraction lever

SX - 850 nm, for a maximum of 550 m at 1.25 Gbit/s (Gigabit Ethernet) or 150m at 4.25 Gbit/s (Fibre Channel).

2.For single-mode fiber, with blue extraction lever

LX - 1310 nm, for distances up to 10 km.

BX - 1490 nm/1310 nm, Single Fiber Bi-Directional Gigabit SFP Transceivers, paired as BS-U and BS-D for Uplink and Downlink respectively, also for distances up to 10 km.

CWDM and DWDM SFP transceivers at various wavelengths achieving various maximum distances: 1550 nm 40 km (XD), 80 km (ZX), 120 km (EX or EZX).

3.For copper twisted pair cabling

1000BASE-T SFP Transceiver - these modules incorporate significant interface circuitry and can just be used in Gigabit Ethernet, as that is the interface they implement. They are not suitable for (in other words: don't have equivalents for) Fibre channel or SONET.

Fiberstore is a professional fiber optic manufacturer for all types of fiber optic transceivers, which also provides many various types of sfp direct attach cable. If you're on the market for SFP Transceivers, such as Cisco SFP Cables, Compatible SFP, 100M& 1G SFP, SWDM & DWDM SFP, BIDI SFP, Copper & SGMII SFP. Today is the perfect time to buy with the 30% Saving.

1000BASE SFP Transceiver Provided By Fiberstore

The 1000BASE designation is an IEEE shorthand identifier. The "1000" in the media type designation refers to the transmission speed of 1000 Mbps. The "BASE" refers to baseband signalling, which means that only Ethernet signals are carried on the medium. For Gigabit Ethernet, industry offerings include these types of wiring:

• 1000BASE-T (four pairs of Category 5 unshielded twisted pair cable for a maximum length of 100 meters)
• 1000BASE-SX (a short laser wavelength on multimode fiber optic cable for a maximum length of 550 meters)
• 1000BASE-LX/LH (a long wavelength for a "long haul" fiber optic cable for a maximum length of 10 kilometers)
• 1000BASE-EX (the laser wavelength is 1310nm on single-mode fiber optic cable for a maximum length of 40 km)
• 1000BASE-ZX (an extended wavelength single-mode optical fiber for up to 100 kilometers)
• 1000BASE-BX10(single way single-mode fiber optic cable for a maximum length of 10km)

Cisco, one of the top 500 companies in this world, supplies network and communications goods and service. Its SFP(small form-factor pluggable) transceiver is popular using their routers and switches. Cisco SFP is definitely an upgraded version fiber optic transceiver in the traditional one, which can be smaller and more flexibility. Cisco SFP provides a number of the transceivers with various working wavelength and distance. Today I'd like to introduce you something about the Cisco 1000Base SFP transceivers, including 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U on the port-by-port basis.

1000BASET SFP for Copper networks work on garden variety Category 5 unshielded twisted pair copper cabling. Cisco 1000BASE-T SFP is capable of approximately 100m (328 ft) link lengths. Cisco 1000BASE-T SFP modules support 10/100/1000 autonegotiation and Auto MDI/MDIX.

1000BASE-SX SFP which in some areas is called Transceiver SX, and it can be used just for the purposed from the multimode optical fiber. It is fully suitable for IEEE802.3z 1000BASE-SX standard. 1000BASE-SX SFP traditional 50 microns of multimode optical fiber link is 550 meters high and 62.5 micron fiber distributed data interface (FDDI) multimode optical fiber can be 220 meters.

Used for 1000BASE-LX/LH SFP(GLC-LH-SM) single mode and multimode optical fiber application. Compatible with IEEE802.3z 1000BASE-LX standard 1000BASE-LX/LH SFP. the SFP operating cycle standard single mode fiber optic link up to 10 km, 550 meters of any of the multimode optical fiber. With the traditional form of multimode optical fiber, transmitter should adjust cable and through the model.

1000BASE-EX SFP is perfect for long-reach, single mode fiber can reach 40 km long. A 5 dB must be inserted regarding the inline optical attenuator from the fiber optic cable on both sides from the receiving port of SFP back end about the hyperlink to the connections about the back.

1000BASE-ZX SFP(GLC-ZX-SM) is required for too long distance, about 70km duration of single mode fiber application. SFP optical link budget of the 23 decibels, but the exact link span depends on multiple factors, for example, fiber optic connector, quantity and connector.

1000BASE-BX10-D and 1000BASE-BX10-U SFP of single fiber bi-directional applications and compatibility according to IEEE 802.3ah 1000BASE-BX10-D and 1000BASE-BX-10-U standards. 1000BASE-BX10-D SFP are operated by only one strand of ordinary SMF.

Fiberstore.com provides a fully choice Cisco SFP fiber optic transceivers, including Cisco Bidi SFP,Cisco Copper SFP , Cisco DWDM SFP and Cisco CWDM SFP . The Cisco 1000BASE SFP Transceiver provided by Fiberstore are economic price but high-quality. Their Cisco SFP modules fully tested to be sure the compatibility with equipment from Cisco as well as other companies.

QSFP+ in the 40 Gigabit Ethernet Fiber Optic Media Systems

There are two 40 Gigabit fiber optic physical medium dependent (PMD) specifications in the standard, which provide 40 Gb/s Ethernet over multimode fiber optic (MMF) cable and single-mode fiber optic (SMF) cable. The 40GBase-SR4 short reach fiber optic system sends four lanes of PCS data over four pairs of multimode cables, for a total of eight fiber strands. The 40GBase-LR long-reach system sends four lanes of PCS data four wavelengths of light, carried over a single pair of fiber optic cables.

The first 40 Gb/s transceivers were based on the C form-factor pluggable (CFP) module, 40G CFP Transceiver which is a large module capable of handling up to 24 watts of power requirements were based on this module. The CFP modules is specified by a multiagreement.

CFP module, which can be used to provide either a 40GBase-SR4 or a 40GBase-LR4 transceiver. The module is a 40 GBase-LR4 connection is described. The most popular connector for 40 Gb/s interfaces these days is the QSFP+ module: it takes up much less space on a switch or server interface, making it possible for vendors to provide multiple QSFP+ transceiver module for 40GBase-SR4 is provided with a multifiber push-on (MPO) media connector, carrying multiple pairs of fiber optic cables to support the four lanes of data for the short reach fiber standard. The 40GBase-LR4 long-reach system uses a QSFP+ transceiver equipped with a duplex fiber connector for connecting to the single pair of fiber cables.

Recently Molex Incorporated, the world's largest plug-in companies introduced the QSFP+ interconnect solution designed for a multimode of markets and applications including switches, router, Host Bus Adapters (HBAs), enterprise data centers. high-performance computing (HPC) and storage. Components of the system include the Electromagnetic Interference (EMI) shielding cage, passive cable assembly, active cable assembly, optical MTP cable assembly, optical QSFP+ loopback, and a 38-circuit SMT iPass host connector.

"The QSFP has evolved to QSFP+ to meet 40Gbps data rates just as SFP progressed from SFP to SFP+ for 40 Gbps rates. The original QSFP MSA now resides as INF-8438 and is no longer an appropriate designation for use, being superseded by SFF-8436 in the SFF Committee," said Jay Neer, advanced technical market manager, industry standards, Molex Incorporatd.

QSFP+ uses a standard 38-circuit iPass SMT host connector with a proven mating interface that connector with a proven mating interface that enables high durability. The iPass SMT host connector with a proven mating interface that enable high durability. The iPass contact design, also implemented in other standards such as PCIe, SAS, SATA, Ethernet and InfiniBand, provides four balanced differential channels featuring class-leading isolation, and bandwidth, with durability cycling up to 250 cycles. The Molex host connector mounts to the PCB beneath a low-profile metal cage that provide latch points and is engineered to provide appropriate EMI protection for the host system port. Optional light pipes and heat sink thermal solutions can be slipped onto the cage when needed.

The QSFP+ cables assemblies are designed to accommodate stacked and ganged connector configurations in extremely high density requirements. They support 40G Ethernet, InfiniBand, SAS and SONET/SDH standards with different data rate options.

The optical QSFP+ MTP cable assemblies and loopbacks meet the QSFP+ interface specification. Cables are constructed with 12-fiber 3.00mm round cable for data center interconnect cable assembly applications.

The round cable provides much improved cable management over the traditional flat ribbon cable. A robust 4.50mm round optical cable ensure cable integrity and improved cable routing for installations that require connections greater than 25m apart.

QSFP+ breakout cable assemblies are available for SFP+ or patch panel installations. Loopbacks feature a compact housing compatible with module spacing and loop optical transmit ports to receive ports for testing, burn -in, and field troubleshoot.

The related products what mentioned above all can be offered from Fiberstore, at the same time, I need to tell you good news that some optical fiber products are working with 30% of the price discount now. Welcome to visit our online store. (http://www.fiberstore.com)

40G Ethernet Fiber Optic Transceivers Introduction

The development of a brand new Ethernet system that operates up to 10 Gb/s began with a Higher Speed Study Group "Call For Interest" meeting in July 2006. In response, an IEEE task force was formed to develop a 100 Gb/s Ethernet system in the 802.3ba supplement. This effort was then expanded to include 40 Gb/s Ethernet, and the combined 40 and 100 Gb/s 802.3ba supplement was completed and published in 2010. The 40 and 100 Gb/s specifications were adopted into the standard as Clauses 80 through 89.

There's two 40 Gigabit fiber optic physical medium dependent (PMD) specifications in the standard, which offer 40 Gb/s Ethernet over multimode fiber optic (MMF) cable and single-mode fiber optic (SMF) cable. The 40GBASE-SR4 short reach fiber optic system sends four lanes of PCS data over four pairs of multimode cables, for a total of eight fiber strands. The 40GBASE-LR4 long-reach system sends four lanes of PCS data over four wavelengths of light, carried over a single pair of fiber optic cables. And today,we introduce Fiberstore two kinds of 40 Gigabit fiber optic transceivers.

The first 40 Gb/s transceivers were depending on the C form-factor pluggable module(40Gbit/s CFP Transceiver), that is a large module able to handle faster than 24 watts of power dissipation. First-generation transceivers with multiple chips and greater power requirements were according to this module. The CFP module is specified by a multiagreement.

Figure 1 shows a CFP module, which can be used to supply either a 40GBASE-SR4 or a 40GBASE-LR4 transceiver. The module shown in this figure is a 40GBASE-LR4 transceiver, which provides two SC fiber optic connectors for connection to a pair of single-mode fibers.

Figure 1. 40GBASE-LR4 CFP Optical Transceiver Module

The second is named 40-Gigabit QSFP+ transceiver module,that is a hot-swappable, parallel fiber-optical module with four independent optical transmit and receive channels. These channels can terminate in another 40-Gigabit QSFP+ transceiver, or the channels could be broken out to four separate 10-Gigabit SFP+ transceivers. The QSFP+ transceiver module connects the electrical circuitry of the system with either a copper or an optical external network. (See Figure 2 for a view of the optical QSFP+ transceiver.) The transceiver is used primarily in short reach applications in data center equipment, routers, and switches where it offers higher density than SFP+ modules.

Figure 2 shows a single-mode fiber optic cable terminated in an LC optical plug connector. Also shown is a 40G QSFP+ transceiver module with LC optical sockets.

Figure 2. 40GBASE-LR4 QSFP+ Transceiver Module

The QSFP+ 40GBASE-LR4 transceiver module is the newest technology for OEM next-generation systems where industry leaders are eager to extend reach, increase speed and lower their customers'overall power consumption and simply large data center and enterprise applications. Moving to 40GbE QSFP+ also significantly improves port density.

The 40GbE QSFP+ module extends a pre-existing 40G family of products provided by Fiberstore, such as the 40GBASE-LR4 module from the larger CFP form factor which is seeing initial deployments in customer systems now and has been recently announced as production released. 40GBASE-LR4 technology offers OEMs a cheaper cost, longer reach substitute for traditional 40G Sonet/SDH client interfaces and makes 40G deployments much more economically viable in high-speed switches and edge routers.

Fiberstore, a world leader in high-speed optical communications technology,which provides all kinds of Internet networking connection solution. Except to provides fiber optic transceivers and DAC cables, fiberstore.com also provides customized solutions for all needs and specifications.

Fiberstore DAC Cable Compatible For Cisco 10Gigabit Ethernet

Fiberstore, the leading interconnect manufacturer formally announced the expansion of its high-speed 10-Gigabit products which have established a reputation for premium quality, proven performance and competitive prices. The Fiberstore interconnect solutions: 10-Gigabit solution saving starts Now at Fiberstore on demand. Buy direct from the world’s largest SFP+ cable OEM and save with new discounted pricing.

10G SFP+ Direct Attach Cable (DAC), twinax cable with SFP+ connector, is designed to work with equipment with 10G SFP+ interface,and pirce is cheap.For example: Cisco SFP-H10GB-CU1M Compatible SFP to SFP Copper direct-attach cables only need US$ 18.00. (from Fiberstore Interconnect Compatible Solutions).This cable offers the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices.They provide a low cost, low power and low latency interconnect solution for 10-Gigabit Ethernet, Fiber Channel and other industry standards, and are direct attached compliant and fully conform to the SFP+ MSA specifications.

Fiberstore offers all DAC cable compatible for Cisco 10-Gigabit Ethernet:
SFP+ Twinax Copper Cables

Figure 1. 10G SFP+ Twinax Copper Cable.

SFP+ copper twinax direct attach cables are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore passive Twinax cables in lengths of 1, 1.5, 2, 2.5, 3 and 5 meters, and active Twinax cables in lengths of 7 and 10 meters.(Cisco Twinax Cables)

SFP+ Active Optical Cables

Figure 2. 10G SFP+ Active Optical Cable.

SFP+ active optical cables (AOC) are direct-attach fiber assemblies with SFP+ connectors. They are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore offers Active Optical Cables in lengths of 1, 2, 3, 5, 7, and 10 meters.

Fiberstore offers customized service for cable length. Fiberstore provides 10G SFP+ cables, including 10G SFP+ copper passive / active cable and 10G SFP+ AOC cable, in various lengths according to requirement of customers. (Custom SFP+ Direct Attach Cable)

If you are in the market for high speed copper cables, such as CX4 Cables, HD Mini-SAS Cables, SFP+ Cables, QSFP Cables. Today is the perfect time to buy with the 30% Saving.These cables are 100% compatible with major brands like Cisco, HP, Juniper, Enterasys, Extreme, H3C and so on.