N2K-C2248TF-E – 48x1G BASE-T – 4x10G SFP+ Fabric Links – Nexus FEX
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N2K-C2248TF-E Description
N2K-C2248TF-E is a Cisco Nexus 2248TP-E Fabric Extender for extending Nexus parent-switch access ports to server racks. It provides 48 100/1000BASE-T host interfaces, four 10G SFP+ fabric interfaces, eight included Cisco Fabric Extender transceivers, 40 Gbps fabric speed in each direction / 80 Gbps full duplex, 131 Mpps forwarding, 176 Gbps hardware forwarding, 32 MB shared buffer, and parent-switch-managed software download and upgrades. The fabric extender delivers 1G copper rack-edge connectivity under Nexus parent switch control.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
SKU |
N2K-C2248TF-E |
|
Product Type |
Cisco Nexus Fabric Extender |
|
Product Model |
Cisco Nexus 2248TP-E |
|
Host Interfaces |
48 x 100/1000BASE-T |
|
Fabric Interfaces |
4 x 10 Gigabit Ethernet SFP+ |
|
Included Fabric Transceivers |
8 x Cisco Fabric Extender Transceivers |
|
Fabric Speed |
40 Gbps in each direction / 80 Gbps full duplex |
|
Forwarding Rate |
131 Mpps |
|
Hardware Forwarding |
176 Gbps |
|
Shared Buffer |
32 MB |
|
Fan Modules Included |
1 |
|
Airflow |
Port-side exhaust or port-side intake options |
|
Software Handling |
Software is downloaded and upgraded from the parent switch |
Product Performance
Key Features
N2K-C2248TF-E extends a supported Cisco Nexus parent switch to the rack edge, allowing network teams to manage access ports from the parent switch instead of operating each rack device as a separate switch.
The 48 100/1000BASE-T host interfaces fit racks where connected devices still use copper 1G links, such as legacy servers, appliances, management interfaces, storage controllers, and infrastructure devices.
The 4 x 10G SFP+ fabric ports connect the Fabric Extender back to the parent Nexus switch, giving engineers a predictable fabric-link design for access-layer extension.
Cisco lists N2K-C2248TF-E with eight Cisco Fabric Extender Transceivers included, which matters during procurement because the uplink media plan affects whether the deployment is ready to cable.
The bundle includes two power supplies and one fan module, with airflow and power-supply type selected at ordering. This helps procurement teams match the FEX to rack power and cooling standards.
The Fabric Extender downloads and upgrades software from the parent switch, so compatibility checks should focus on the parent Nexus platform, NX-OS release, and supported FEX topology.
Application Scenarios
Use N2K-C2248TF-E when a data center rack needs dense 1G BASE-T host access but the network design standardizes control and management on an upstream Nexus parent switch.
Choose this SKU when an existing Nexus 2000 FEX environment already uses 2248TP-E models and needs a like-for-like unit, rack expansion, or maintenance replacement with the same host-port profile.
Deploy N2K-C2248TF-E when engineers want to reduce the number of separately managed rack switches and keep access policies, software, and operational control tied to the parent Nexus platform.
Product Comparison
|
Parameter |
N2K-C2248TF-E |
N2K-C2248TP-E |
N2K-C2248TF |
N2K-C2232TF-E |
|---|---|---|---|---|
|
Product Model |
Nexus 2248TP-E |
Nexus 2248TP-E |
Nexus 2248TP |
Nexus 2232TM-E |
|
Host Interfaces |
48 x 100/1000BASE-T |
48 x 100/1000BASE-T |
48 x 100/1000BASE-T |
32 x 1/10GBASE-T |
|
Fabric Interfaces |
4 x 10GE SFP+ |
4 x 10GE SFP+ |
4 x 10GE SFP+ |
8 x 10GE SFP+ |
|
Included Fabric Transceivers |
8 x FET transceivers |
Not included in base SKU |
8 x FET transceivers |
16 x FET transceivers |
|
Fabric Speed |
80 Gbps full duplex |
80 Gbps full duplex |
80 Gbps full duplex |
160 Gbps full duplex |
|
Forwarding Rate |
131 Mpps |
131 Mpps |
101 Mpps |
595 Mpps |
|
Shared Buffer |
32 MB |
32 MB |
32 MB |
32 MB |
|
Form Factor |
1RU |
1RU |
1RU |
1RU |
|
Host Port Type |
1G copper |
1G copper |
1G copper |
1/10G copper |
- Choose N2K-C2248TF-E when the project needs a Nexus 2248TP-E FEX bundle with FET transceivers included.
- Choose N2K-C2248TP-E if the same 2248TP-E chassis is required but fabric transceivers will be sourced separately.
- Choose N2K-C2232TF-E when the rack requires 10GBASE-T host access instead of 1G copper access.
- Avoid using these models as standalone switches; Nexus 2000 Fabric Extenders require a supported parent Nexus switch.
Selection Guide
1. Choose N2K-C2248TF-E for 48-port 1G copper FEX deployments
Select N2K-C2248TF-E when the rack needs 48 100/1000BASE-T host ports and the design uses Cisco Nexus Fabric Extenders under a supported parent switch.
2. Choose a 10GBASE-T FEX if host links need 10G copper
If servers or appliances require 10GBASE-T host connectivity, compare N2K-C2232TF-E instead of using a 1G-only 2248TP-E model.
3. Verify the parent Nexus platform and software release
N2K-C2248TF-E depends on the parent switch for management and software. Confirm the Nexus 5000, 6000, 7000, or 9000 parent platform and NX-OS release before ordering.
4. Confirm airflow, fabric media, and rack power before purchase
Before ordering, confirm port-side intake or exhaust airflow, AC or DC power supply selection, fabric-link optics or cables, rack-mount accessories, quote, stock, lead time, warranty handling, and shipping destination.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Parent Switch |
Supported Cisco Nexus parent switch family and model |
The Fabric Extender is managed by the parent Nexus switch |
|
Software Release |
Parent switch NX-OS release and supported FEX topology |
Confirms the FEX can be discovered, managed, and upgraded |
|
Host Port Speed |
100/1000BASE-T access requirement |
N2K-C2248TF-E is for 1G copper host access, not 10GBASE-T host access |
|
Fabric Links |
10G SFP+ fabric-link design and required cable length |
Determines whether FET transceivers, SFP+ optics, or twinax cables are appropriate |
|
Airflow Direction |
Port-side intake or port-side exhaust |
Airflow must match the rack cooling design |
|
Power Configuration |
AC or DC power supply selection and power cord requirements |
Prevents mismatch with rack power standards |
|
Rack Accessories |
Rack-mount kit and cable-management needs |
Avoids installation delays during deployment |
Optional Add-ons
|
Model |
Description |
|---|---|
|
N2200-PAC-400W |
400W AC power supply for Cisco Nexus 2200 platform |
|
N2200-PAC-400W-B |
400W AC power supply for Cisco Nexus 2200 platform, port-side intake airflow |
|
N2200-PDC-400W |
400W DC power supply for Cisco Nexus 2200 platform |
|
N2200-PDC-350W-B |
350W DC power supply for Cisco Nexus 2200 platform, port-side intake airflow |
|
N2K-C2248-FAN |
Fan module for Cisco Nexus 2248TP |
|
N2K-C2248-FAN-B |
Fan module for Cisco Nexus 2248TP, port-side intake airflow |
|
FET-10G |
Cisco Fabric Extender Transceiver for 10G fabric links |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| SKU | N2K-C2248TF-E | Product Type | Cisco Nexus Fabric Extender |
| Product Model | Cisco Nexus 2248TP-E | Host Interfaces | 48 x 100/1000BASE-T |
| Fabric Interfaces | 4 x 10 Gigabit Ethernet SFP+ | Included Fabric Transceivers | 8 x Cisco Fabric Extender Transceivers |
| Fabric Speed | 40 Gbps in each direction / 80 Gbps full duplex | Hardware Forwarding | 176 Gbps / 131 Mpps |
| Shared Buffer | 32 MB | MAC Addresses | 32,000 |
| Form Factor | 1RU | Power Supplies Included | 2 |
| Fan Modules Included | 1 | Airflow | Port-side exhaust or port-side intake options |
| Management Model | Managed by Cisco Nexus parent switch | Software Handling | Downloaded and upgraded from the parent switch |
Get More Information
Need pricing, stock, or shipping details for the N2K-C2248TF-E ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
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