Tag Archives: 40G

Transceiver Solutions for Cisco Catalyst 9300 Series Switch

This year, Cisco unveiled the Catalyst 9000 family, shaping the new era of intent-based networking. The Network. Intuitive. The Cisco Catalyst 9000 Series switches are the next generation of enterprise-class switches built for security, Internet of Things (IoT), mobility, and cloud. The Cisco Catalyst 9000 Series switches come in three main varieties: The Catalyst 9300, the Catalyst 9400 and the Catalyst 9500. Here, the post will give an emphasis on Cisco Catalyst 9400 series switches and transceiver solution for them.

Overview of Cisco Catalyst 9300

The Catalyst 9300 Series is the next generation of the industry’s most widely deployed stackable switching platform. Built for security, IoT, and the cloud, these network switches form the foundation for Cisco’s Software-Defined Access, the leading enterprise architecture. In addition, the Cisco Catalyst 9300-based models support a variety of uplink modules for both copper and fiber uplink support. These models add even more flexibility to the interface choices that you can make in a single Cisco Catalyst 9300 Switch or in a stack of Cisco Catalyst 9300 Switches.

cisco catalyst 9300

Supported Transceiver Modules for Cisco Catalyst 9300

The Cisco Catalyst 9300 Series Switches support optional network modules for uplink ports. All modules are supported across all 9300 platforms:

  • 4 x 1 Gigabit Ethernet network module
  • 4 x 1, 2.5, 5, or 10 Gigabit Ethernet network module
  • 8 x 10 Gigabit Ethernet network module
  • 2 x 40 Gigabit Ethernet network module

100G Solution

Model Number Transceiver Description Interface Max Cable Distance
CFP-100G-SR10 100GBASE-SR10 CFP form factor transceiver module for multi mode fiber, short wavelength over 10 lanes, in the 850-nm wavelength window MTP/MPO-24 Up to 100m on OM3/<150m on OM4
CFP-100G-LR4 100GBASE-LR4 CFP form factor transceiver module for SMF, 4 LAN-WDM lanes in the 1310-nm wavelength window LC duplex 10km
CFP-100G-ER4 100GBASE-ER4 CFP form factor transceiver module for SMF, 4 LAN-WDM lanes in the 1310-nm wavelength window LC duplex 40km
QSFP-100G-SR4-S 100GBASE-SR4 QSFP form factor transceiver module for multi mode fiber, short wavelength over 4 lanes, in the 850-nm wavelength window LC duplex 100m
QSFP-100G-CWDM4-S 100GBASE CWDM4 QSFP form factor Transceiver for single mode fiber, 4 CWDM-WDM lanes in the 12761-1331-nm wavelength window LC duplex 2km
QSFP-100G-PSM4-S 100GBASE PSM4 QSFP form factor transceiver module for single mode fiber, short wavelength over 4 lanes, in the 1195-1325-nm wavelength window MTP/MPO-12 500m
QSFP-100G-LR4-S 100GBASE-LR4 QSFP form factor transceiver module for SMF, 4 LAN-WDM lanes in the 1310-nm wavelength window LC duplex 10km

40G Solution

Model Number Transceiver Description Interface Max Cable Distance
QSFP-40G-SR4 40GBASE-SR4 QSFP+ transceiver module for MMF, 4-lanes, 850-nm wavelength MTP/MPO 150m on OM4
QSFP-40G-CSR4 40GBASE-CSR4 QSFP+ transceiver module for MMF, 4-lanes, 850-nm wavelength MTP/MPO 400m on OM4
QSFP-40G-SR4-S 40GBASE-SR4 QSFP+ transceiver module for MMF, 4-lanes, 850-nm wavelength MTP/MPO 150m on OM4
QSFP-40G-SR-BD 40G QSFP Bi-Directional transceiver module for duplex MMF LC duplex 150m on OM4/100m on OM3/30m on OM2
QSFP-40G-ER4 40GBASE-LR4 QSFP40G transceiver module for Single Mode Fiber, 4 CWDM lanes in 1310nm window Muxed inside module LC duplex 40km
QSFP-40GE-LR4 100GBASE-LR4 QSFP form factor transceiver module for SMF, 4 LAN-WDM lanes in the 1310-nm wavelength window LC duplex 10km
WSP-Q40GLR4L 40GBASE-LR4 QSFP40G transceiver module for Single Mode Fiber, 4 CWDM lanes in 1310nm window Muxed inside module LC duplex 2km

25G Solution

Model Number Transceiver Description Connector Type Cable Type
SFP-H25G-CU1M 25G Copper Cable 1-meter SFP28 to SFP28 Passive Copper Cable
SFP-H25G-CU2M 25G Copper Cable 2-meter SFP28 to SFP28 Passive Copper Cable
SFP-H25G-CU3M 25G Copper Cable 3-meter SFP28 to SFP28 Passive Copper Cable
SFP-H25G-CU5M 25G Copper Cable 2-mete SFP28 to SFP28 Passive Copper Cable
SFP-25G-SR-S 25GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength LC duplex MMF

10G Solution

Model Number Transceiver Description Interface Max Cable Distance
SFP-10G-SR 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength LC duplex 300m over OM3
SFP-10G-SR-S 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength LC duplex 300m over OM3
SFP-10G-SR-X 10GBASE-LRM SFP+ transceiver module for MMF and SMF, 1310-nm wavelength LC duplex 300m over OM3
SFP-10G-LRM 10GBASE-LRM SFP+ transceiver module for MMF and SMF, 1310-nm wavelength LC duplex 220m
SFP-10G-LR 10GBASE-LR SFP+ transceiver module for SMF, 1310-nm wavelength LC duplex 10km
SFP-10G-LR-S 10GBASE-LR SFP+ transceiver module for SMF, 1310-nm wavelength LC duplex 10km
SFP-10G-LR-X 10GBASE-LR SFP+ transceiver module for SMF, 1310-nm wavelength LC duplex 10km
SFP-10G-ER-S 10GBASE-ER SFP+ transceiver module for SMF, 1550-nm LC duplex 40km
SFP-10G-ZR 10GBASE-ZR SFP+ transceiver module for SMF, 1550-nm LC duplex 80km
SFP-10G-BX40D-I 10G SFP+ Bidirectional for 40km, downstream LC duplex 40km
SFP-10G-BX40U-I 10G SFP+ Bidirectional for 40km, upstream LC duplex 40km
DWDM-SFP10G-49.32 10GBASE-DWDM 1549.32 nm SFP+ (100-GHz ITU grid) LC duplex 40km
DWDM-SFP10G-60.61 10GBASE-DWDM 1560.61 nm SFP+ (100-GHz ITU grid) LC duplex 40km
CWDM-SFP10G-1470 CWDM 1470 nm SFP+ 10 Gigabit Ethernet Transceiver Module LC duplex 20km
CWDM-SFP10G-1490 CWDM 1490 nm SFP+ 10 Gigabit Ethernet Transceiver Module LC duplex 20km
XENPAK-10GB-ER 10GBASE-ER XENPAK transceiver module for SMF, 1550-nm wavelength SC duplex 40km
XENPAK-10GB-LR 10GBASE-LR XENPAK transceiver module for SMF, 1310-nm wavelength SC duplex 10km
X2-10GB-LR 10GBASE-LR X2 transceiver module for SMF, 1310-nm wavelength SC duplex 10km
X2-10GB-SR 10GBASE-SR X2 transceiver module for MMF, 850-nm wavelength SC duplex 300m over OM3 MMF
XFP-10GLR-OC192SR Cisco multirate XFP transceiver module for 10GBASE-LR Ethernet and OC-192/STM-64 short-reach (SR-1) Packet-over-SONET/SDH (POS) applications,SMF LC duplex 10km
XFP-10GER-OC192IR Cisco multirate XFP transceiver module for 10GBASE-ER Ethernet and OC-192/STM-64 intermediate-reach (IR-2) Packet-over-SONET/SDH (POS) applications, SMF LC duplex 40km

Conclusion

Digital disruption is changing how we think about our networks. Whether customers or employees, the “experience” has become a strategic imperative. The Cisco Catalyst 9300 Series fixed access switches are designed to help you change your network from a platform of connectivity to a platform of services. If you are in need of compatible optical transceivers for Catalyst 9300, give FS.COM a shot. FS.COM provides a wide range of supported optical transceivers for Cisco Catalyst 9300 series switch. Each one of them has been tested with assured 100% compatibility to them.

WBMMF – Next Generation Duplex Multimode Fiber in the Data Center

Enterprise data center and cloud operators use multimode fiber for most of their deployments because it offers the lowest cost means of transporting high data rates for distances aligned with the needs of these environments. The connections typically run at 10G over a duplex multimode fiber pair—one transmit (Tx) fiber and one receive (Rx) fiber. Upgrading to 40G and 100G using MMF has traditionally required the use of parallel ribbons of fiber. While parallel transmission is simple and effective, continuation of this trend drives higher cost into the cabling system. However, a new generation of multimode fiber called WBMMF (wideband multimode fiber) is on the way, which can enable transmission of 40G or 100G over a single pair of fibers rather than the four or ten pairs used today. Now, let’s get close to WBMMF.

What Is Wideband Multimode Fiber?
WBMMF is a new multimode fiber type under development that will extend the ability of conventional OM4 multimode fiber to support multiple wavelengths. Unlike traditional multimode fiber, which supports transmission at the single wavelength of 850 nm, WBMMF will support traffic over a range of wavelengths from 850 to 950 nm. This capability will enable multiple lanes of traffic over the same strand of fiber to transmit 40G and 100G over a single pair of fibers and to drastically increase the capacity of parallel-fiber infrastructure, opening the door to 4-pair 400GE and terabit applications. Multimode fiber continues to provide the most cost-effective platform for high bandwidth connectivity in the data center, and with the launch of the WBMMF solution, that platform has been extended to support higher speeds with fewer fibers and at greater distances.

Wideband Multimode Fiber

What Is the Technology Behind WBMMF?
WBMMF uses short wavelength division multiplexing (SWDM) to significantly increase its transmission capacity by four times. WDM technology is well known for its use in single-mode transmission, but has only recently been adapted for use with vertical cavity surface-emitting lasers (VCSELs), which have been proven in high-speed optical communications and are widely deployed in 10G interconnection applications. SWDM multiplexes different wavelengths onto duplex MMF utilizing WDM VCSEL technology. By simultaneously transmitting four VCSELs, each operating at a slightly different wavelength, a single pair WBMMF can reliably transfer 40G (4x10G) or 100G (4x25G). The use of SWDM then enables WBMMF to maintain the cost advantage of multimode fiber systems over single-mode fiber in short links and greatly increases the total link capacity in a multimode fiber link.

SWDM WBMMF

Why Does WBMMF Make Sense?
In order to increase transmission speeds up to 10G or 25G, transceiver vendors simply increased the speed of their devices. When 40G and 100G standards were developed, transmission schemes that used parallel fibers were introduced. This increase in fiber count provided a simple solution to limitations of the technology available at the time. It was accepted in the industry and allowed multimode links to maintain a low cost advantage. However, the fiber count increase was not without issues. At some point, simply increasing the number of fibers for each new speed became unreasonable, in part because the cable management of parallel fiber solutions, combined with the increasing number of links in a data center, becomes very challenging. Please see the picture below. Usually, 40G is implemented using eight of the twelve fibers in an MPO connector. Four of these eight fibers are used to transmit while the other four are used to receive. Each Tx/Rx pair is operating at 10G. But if we use WDMMF, two fibers are enough. Each Tx/Rx pair can transmit 40G by simultaneously transmitting four different wavelengths. This enables at least a four-fold reduction in the number of fibers for a given data rate, which provides a cost-effective cabling solution for data center.

Parallel fibers vs WBMMF

Conclusion
WBMMF is born at the right moment to meet the challenges associated with escalating data rates and the ongoing need to build cost-effective infrastructure. Besides, WBMMF will support existing OM4 applications to the same link distance. Optimized to support wavelengths in the 850 nm to 950 nm range to take advantage of SWDM, WBMMF ensures not only more efficient support for future applications to useful distances, but also complete compatibility with legacy applications, making it an ideal universal medium that supports not only the applications of the present, but also those of the future.

Original article source: http://www.cables-solutions.com/wbmmf-next-generation-duplex-multimode-fiber-in-the-data-center.html