Product Overview
The Cisco QSFP-DD800 modules introduce 8x100G and 2x400GGBASE Quad Small Form-Factor Pluggable Double-Density (QSFP-DD) modules, offering customers super-high-density pluggable transceivers along with the flexibility of 400 Gigabit Ethernet and 100 Gigabit Ethernet connectivity options for data centers, high-performance computing networks, enterprise core and distribution layers, and service provider applications. The QSFP-DD800 modules are Cisco’s new generation of 2x400G pluggable transceiver modules based on a QSFP-DD form factor.
QDD-8X100G-FR
The Cisco QDD-8X100G-FR module supports 100G breakout link lengths of up to 2 km. The module has eight pairs of single-mode fiber with MPO-12 APC connectors. It is compliant to the IEEE 802.3cu for 100GBASE- FR1. The 400 Gigabit Ethernet signal is carried over eight parallel lanes by one wavelength per lane. It can be used as 8x100G breakout to QSFP28 100G-DR (up to 500 m), 100G-FR (up to 2 km), and 100G-LR (up to 2 km). It may also be used as two independent 400GBASE-DR4 transceivers in a single port. FEC is performed on the host platform.
QDD-2X400G-FR4
The Cisco QDD-2X400G-FR4 module supports link lengths of up to 2 km SMF with two duplex LC connectors. It is compliant to IEEE 802.3cu for 400GBASE-FR4 requirements and 100G Lambda MSA group. The 400 Gigabit Ethernet signal is carried over four CWDM grid optical wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device. FEC is performed on the host platform.
Table 1. Feature and benefits of Cisco QSFP-DD800 modules
Feature | Benefit |
Hot-swappable | Input/output device that plugs into 2x400G Ethernet Cisco QSFP port |
Interoperable | Interoperable with other IEEE-compliant 400GBASE and 100GBASE interfaces where applicable |
Certified on Cisco platform | Certified and tested on Cisco QSFP-DD 2x400G ports for superior performance, quality, and reliability |
Compatible with IEEE 802.3 | High-speed electrical compliant to IEEE 802.3 |
Compatible with MSA | Optical and coding compliant to QSFP-DD MSA CMIS Rev 5, OIF 112G PAM4, and 100G Lambda MSA |
Backward compatibility | QSFP-DD port is backward compatible with QSFP+, QSFP28, QSFP56, and QSFP-DD 400G modules |
Breakout capability | The 2x400G QSFP-DD modules have the capability to interface to multiple 100G and 400G modules, providing higher port density for 100G and 400G interfaces. |
Table 1. Electrical specifications
Product | Description | Nominal data rate (Gbps) | High-speed electrical | Link meter |
QDD-8X100G-FR | QSFP-DD Transceiver, 8X100GBASE-FR1, Dual MPO-12, 2-km parallel SMF | 8x100GE | 100GAUI-1/400GAUI-4 Annex 120G | 2 km |
QDD-2X400G-FR4 | 2X400G QSFP-DD Transceiver, 400G- FR4, Dual Duplex LC, 2-km Duplex SMF | 425 | 400GAUI-4 Annex 120G | 2 km |
Table 2. QSFP port and cabling specifications
Cisco 2X 400G QSFP-DD | Nominal wavelength (nm) | Cable type | Core size (microns) | Modal bandwidth | Cable distance | Pull tab color |
QDD-8X100G-FR | 1310 | SMF | G.652 | 2 km | Green | |
QDD-2X400G-FR4 | 1270, 1290, 1310,1330 | SMF | G.652 | 2 km | Green |
Table 1. Cisco QSFP-DD800 Transceiver Modules
Part ID | Product description |
QDD-8X100G-FR | QSFP-DD Transceiver, 8x100GBASE-FR1, MPO-12, 2-km parallel SMF |
QDD-2X400G-FR4 | 2x400G QSFP-D Transceiver, 2x400G-FR4, Dual Duplex LC, 2-km Duplex SMF |
