Deployment Scheme for SFP-10G-T-X Transceivers
The following switches
support SFP-10G-T-X transceivers with adjacency limitations:
- N9K-C93180YC-EX
- N9K-C93180YC-FX
- N9K-C93240YC-FX2
- N9K-C93360YC-FX2
Here’s a table with direct links to the official Cisco hardware installation guides for the specified Nexus switch models that support SFP-10G-T-X transceivers:
| Cisco Nexus Model | Hardware Installation Guide Link |
|---|---|
| N9K-C93180YC-FX | View Guide |
| N9K-C93180YC-EX | View Guide |
| N9K-C93240YC-FX2 | View Guide |
| N9K-C93360YC-FX2 | View Guide |
Note - Cisco Nexus FX3 series
switches—such as the N9K-C93180YC-FX3—do not have the same adjacency
restrictions for SFP-10G-T-X transceivers as seen in FX and FX2
models.
The following figure shows the maximum configuration density of SFP-10G-T-X SFP+ transceivers for this switch.
This guide outlines the configuration and power management strategy for deploying SFP-10G-T-X SFP+ transceivers on Cisco switches. The deployment scheme uses a color-coded system to manage port behavior and optimize power consumption.
🟨 Yellow Ports – Active with SFP-10G-T-X
- Transceiver: SFP+ 10GBASE-T
- Power Consumption: Up to 2.5W
- Configuration Required:
- NX-OS: media-type 10g-tx
- ACI: Link Level Policy → Physical
Media Type → SFP 10G TX
- Behavior: Without configuration, these ports act as standard SFP+ ports.
🔵 Blue Ports – Adjacent to Yellow Ports
- Condition: Adjacent to yellow ports (left, right,
top, bottom)
- Allowed Usage:
- Passive Copper DAC cables only
- Or left empty to conserve power
- Power Consumption: Up to 0.1W
- Behavior: Reverts to normal if the adjacent yellow port is deconfigured.
🟩 Green Ports – Standard Optics
- Supported Optics: Cisco 1G/10G/25G (SFP, SFP+, SFP28)
Excludes SFP+ 10GBASE-T - Power Consumption: Up to 1.5W
- Behavior: Not part of the SFP-10G-T-X scheme; behaves like regular ports.
🌸 Pink Ports – Uplink Ports
- Port Type: QSFP+, QSFP28
- Traffic: Supports 40G/100G
- Behavior: Independent of the SFP-10G-T-X deployment scheme.
To ensure proper operation and speed negotiation when using SFP-10G-T-X transceivers on Cisco Nexus switches, you must configure the speed auto and media-type 10g-tx on each port where the transceiver is installed:
🔄 What This Does:
- media-type 10g-tx: Enables the port to recognize and
support the SFP-10G-T-X transceiver.
- speed auto: Allows the transceiver to auto-negotiate between 1Gbps
and 10Gbps, depending on the link partner's capabilities.
