Cisco 25-Gigabit Ethernet Transceiver Modules for Nexus 9000 & Nexus 3000

The new SFP-25G-SR-S transceiver has been introduced by Cisco for Data Center and Enterprise applications.

The new transceiver facilitates the migration from 10G to the 25G higher data rate by reducing the dollars per Gbps and enabling the reutilization of fiber infrastructure.

Features and Benefits of Cisco 25G Modules
  • Interoperable with other IEEE-compliant 25G interfaces where applicable
  • Certified and tested on Cisco SFP28 ports for superior performance, quality, and reliability
  • High-speed electrical interface compliant to IEEE 802.3by
Cisco SFP-25G Copper Cables

Cisco SFP28 to SFP28 copper direct-attach 25GBASE-CR1 cables are suitable for very short links and offer a highly cost-effective way to establish a 25-Gigabit link between SFP28 ports of Cisco switches within racks and across adjacent racks. Cisco offers passive copper cables in lengths of x=1, 2, 3, and 5 meters.

1m and 2m cables do not require FEC on the host port; 3m cables require BASE-R FEC on the host port; 5m cables require RS-FEC.

Cisco SFP-25G Active Optical Cables

Cisco SFP28 to SFP28 Active Optical Cables 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. Cisco offers Active Optical Cables in lengths of 1, 2, 3, 5, 7, and 10 meters.

AOC cable require BASE-R FEC on the host port.

Cisco SFP-25G-SR-S
  1. The Cisco 25GBASE-SR Module supports a link length of 70m on MMF (OM3) and up to 100m on MMF (OM4).
  2. This module requires RS-FEC on the host port.
Learn more: Cisco 25G Transceivers for Next Generation Switches

Because requirements and procedures for initial configurations and software upgrades tend to change, you should always refer to the switch or router software release notes for the latest information.

Before installing, configuring, or upgrading a switch, refer to the product release notes on Cisco.com for the latest information. This compatibility matrix below does not replace or supersede the release notes.

This publication lists the Cisco platforms and the minimum required software versions to support 25-Gigabit Ethernet transceiver modules.

25-Gigabit Ethernet Transceiver Modules
Model Number Transceiver Description
SFP-25G Transceivers
SFP-H25G-CU1M 25G Copper Cable 1-meter
SFP-H25G-CU2M 25G Copper Cable 2-meter
SFP-H25G-CU3M 25G Copper Cable 3-meter
SFP-H25G-CU5M 25G Copper Cable 5-meter
SFP-25G-AOC1M 25G Active Optical Cable 1-meter
SFP-25G-AOC2M 25G Active Optical Cable 2-meter
SFP-25G-AOC3M 25G Active Optical Cable 3-meter
SFP-25G-AOC5M 25G Active Optical Cable 5-meter
SFP-25G-AOC7M 25G Active Optical Cable 7-meter
SFP-25G-AOC10M 25G Active Optical Cable 10-meter
SFP-25G-SR-S 25GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector
Data Center Switching Minimum Software Release Requirements
Platform Switch or Module Transceiver Model Minimum Software Release Required
DOM Support Software Release
Cisco Nexus 3000 Series N3K-C3232C
(QSFP ports with SLIC adapter)
SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
NX-OS 7.0(3)I4.1
N3K-C36180YC-R SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
SFP-H25G-CU5M**
NX-OS 7.0(3)F3(1)
Cisco Nexus 9000 Series
(Modular 9500)
N9K-X97160YC-EX SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
SFP-H25G-CU5M**
NX-OS 7.0(3)I5.2
SFP-25G-SR-S NXOS-703I6.1 NXOS-703I6.1
SFP-25G-AOC1M*
SFP-25G-AOC2M*
SFP-25G-AOC3M*
SFP-25G-AOC5M*
SFP-25G-AOC7M*
SFP-25G-AOC10M*
NXOS-703I6.1
Cisco Nexus 9000 Series
(Fixed 9200)
N9K-C92160YC-X SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
NX-OS 7.0(3)I3.1
N9K-C92300YC SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
NXOS-703I6.1
N9K-C9236C
(QSFP ports with SLIC adapter)
SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
NX-OS 7.0(3)I4.1
Cisco Nexus 9000 Series
(Fixed 9300)
N9K-C93180YC-EX SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
NX-OS 7.03I4.2 / ACI-N9KDK9-11.3
SFP-25G-AOC1M*
SFP-25G-AOC2M*
SFP-25G-AOC3M*
SFP-25G-AOC5M*
SFP-25G-AOC7M*
SFP-25G-AOC10M*
NXOS-703I6.1 / ACI-N9KDK9-12.3
N9K-C93180YC-FX SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
SFP-H25G-CU5M**
ACI-N9KDK9-12.2A / NXOS-703I7.1
SFP-25G-AOC1M*
SFP-25G-AOC2M*
SFP-25G-AOC3M*
SFP-25G-AOC5M*
SFP-25G-AOC7M*
SFP-25G-AOC10M*
NXOS-703I7.1 / ACI-N9KDK9-12.3
SFP-25G-SR-S   NXOS-703I7.1
N9K-C9348GC-FXP (Supported on ports 49 – 52 only) 
SFP-H25G-CU1M
SFP-H25G-CU2M
SFP-H25G-CU3M*
SFP-H25G-CU5M**
NXOS-703I7.1 / ACI-N9KDK9-13.0
SFP-25G-SR-S   NXOS-703I7.1

*Host side needs to support/enable at least FC-FEC.

**Host side needs to support/enable RS-FEC

Info from https://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/25GE_Tx_Matrix.html

More Cisco Transceiver Modules topics you can visit here: http://blog.router-switch.com/category/reviews/cisco-optics-modules/

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