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N2K-C2348TQ12F
Cisco N2K-C2348TQ12F Nexus 2300 48-Port 10 Gigabit Ethernet...
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N2K-C2348TQ12F is a parent-managed, non-PoE Layer 2 fabric extender with 48 copper host interfaces supporting 100 Mbps, 1 Gigabit Ethernet and 10 Gigabit Ethernet. Six fixed QSFP+ fabric interfaces connect the chassis to a compatible parent Nexus switch at 40G or through supported breakout connections. The Cisco Nexus 2300 fabric extender occupies one rack unit and extends server-facing connectivity without becoming an independently managed switch. The Nexus 2348TQ operates as a remote line card, with forwarding policies controlled upstream rather than through a separate local switching configuration. N2K-C2348TQ4F is a discontinued sibling carrying four rather than twelve QSFP-40G-SR-BD optics when configured for bidirectional optical connectivity; the chassis port configuration remains unchanged.
N2K-C2348TQ12F price for new stock is $32,415.05, a 50% saving from the Cisco list price of $64,830.10. N2K-C2348TQ12F refurb price is $18,247.95. N2K-C2348TQ12F is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for N2K-C2348TQ12F for additional pricing. Browse the full Cisco Nexus 2300 Fabric Extenders series or explore all Cisco products.
1440 Gbps hardware-forwarding capacity describes the extender's packet-processing capability, while the parent switch retains central forwarding and policy enforcement. 2160 Mpps forwarding processes packets directed toward the upstream fabric. 480 Gbps full-duplex fabric bandwidth provides 240 Gbps in each direction, with a published maximum oversubscription ratio of 2:1. N2K-C2348TQ12F uses the family's 32 MB shared packet buffer to absorb traffic bursts rather than providing dedicated buffer allocations for individual hosts. Jumbo frames reach 9216 bytes for applications requiring larger Ethernet frames. Eight hardware queues per port support traffic scheduling, while 64 local policers constrain the number of locally policed traffic classes. Local classification supports 256 ACL entries. Server ports can act as SPAN sources for traffic inspection, and locator LEDs identify individual ports during servicing. The parent supplies the software image and pushes configuration over the fabric connection; no configuration is stored locally.
Specify N2K-C2348TQ12F in new sealed or certified refurbished condition, with the selected optical contents, airflow and power configuration recorded on the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, optics bay recognition, PSU status and fan status; firmware is verified. ORM provides up to 3-year extended warranty on new units, up to 1 year on certified refurbished units, and 30-day returns on every condition, with terms applying; Cisco's original 1-year limited hardware warranty and service ended September 30, 2025. Volume POs are accepted, with Net-30 for government and RMA with advance replacement across UK, EU, US and MEA regional operations.
| Key Specs | Key Spec Values |
|---|---|
Operating System | NX-OS, parent-managed |
Port Configuration | 48 x 10GBASE-T / 6 x 40G QSFP+ fabric interfaces |
Max Power Draw | 350W |
Cooling | 3 hot-swappable fans: NXA-FAN-30CFM-F / NXA-FAN-30CFM-B |
Lifecycle Status | Cisco support ended September 30, 2025 |
When retaining a unified Ethernet and storage deployment, FCoE operation on the copper host interfaces is limited to 30 m with Category 6a or Category 7 cabling and supported Nexus 5500, 5600 or 6000 parents. Specify the existing parent, server adapters and cable lengths before issuing the PO.
When standardizing port-side exhaust racks, NXA-AIRFLOW-SLV-E= provides an airflow extension sleeve for aligning the chassis with the rack's front and rear positions. The sleeve changes the installation envelope rather than the network interfaces. Check available rack depth and include NXA-AIRFLOW-SLV-E= where the mounting arrangement requires it.
When staging an extender before installation, the parent assigns a fabric-extender chassis ID from 101 through 199 and verifies software compatibility during association. Configuration resides on the parent rather than on the extender. Reserve the chassis ID and check the intended parent configuration before releasing the equipment for deployment.
Independent switching without a parent
N2K-C2348TQ12F sends all traffic, including communications between attached hosts, through its parent Nexus switch. The fabric extender cannot provide independent local switching or standalone network operation.
Downstream bridges on host interfaces
Host interfaces enforce BPDU Guard and become error-disabled when a connected bridge sends BPDUs. BPDU Guard cannot be disabled, so these interfaces are restricted to end-host attachment.
Active Cisco manufacturer support
Cisco support for N2K-C2348TQ12F ended September 30, 2025. No replacement product is assigned to this optical bundle, so continued manufacturer service cannot accompany the hardware.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| Depth | 433.6 mm | 356.9 mm | 433.6 mm | 433.6 mm | 356.9 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 43.7 mm | 43.7 mm | 43.7 mm | 43.7 mm | 43.7 mm |
| Manufacturer Part Number | N2K-C2348TQ12F | N2K-C2348UPQ | N2K-C2348TQ-E | N2K-C2348TQ | N2K-C2332TQ |
| Power Consumption | 350W | 200W | 350W | 350W | 250W |
| Switching Capacity | 1440 Gbps | 1440 Gbps | 1440 Gbps | 480 Gbps | 960 Gbps |
| Weight | 8 kg | 7 kg | 8 kg | 8 kg. | 6.8 kg |
| Width | 439.4 mm | 439.4 mm | 439.4 mm | 439.4 mm | 439.4 mm |
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N2K-C2348TQ12F combines the Nexus 2348TQ chassis identifier, N2K-C2348TQ, with the 12F optical-bundle suffix. The chassis supplies 48 copper host ports and six QSFP+ fabric ports. The suffix specifies twelve QSFP-40G-SR-BD optics, or six FET-40G plus twenty-four FET-10G, rather than twelve additional switch ports.
The Nexus 2300 is managed through its parent Nexus switch using CLI, SNMP v1/v2/v3, XML/NETCONF, CiscoWorks or Cisco Data Center Network Manager. Configuration is delivered over fabric links, and the fabric extender does not store configuration locally. Management access and software compatibility therefore depend on the parent-switch connection.
Yes, N2K-C2348TQ12F is discontinued: end of sale was September 9, 2020, and Cisco support ended September 30, 2025. The optical bundle has no assigned replacement product. Hardware acquired afterward must be evaluated without an expectation of continuing Cisco service or manufacturer security maintenance.
No, N2K-C2348TQ12F requires no separate fabric-extender license or subscription term. The parent switch supplies the software image and controls feature availability. Licensing decisions therefore belong to the parent-switch configuration, rather than to a perpetual tier or term subscription attached to this fabric-extender bundle.
ORM Systems offers N2K-C2348TQ12F new sealed with up to 3-year extended warranty, or certified refurbished with up to 1-year warranty. Returns are available for 30 days on every condition; terms apply. Cisco's original 1-year limited hardware warranty and service ended September 30, 2025; ORM coverage is separate.
No, N2K-C2348TQ12F cannot switch traffic independently of its parent Nexus switch. All host traffic, including traffic between servers connected to the same extender, travels through the parent for forwarding and policy enforcement. A functioning fabric connection is therefore necessary for attached hosts to communicate through the extender.
The Nexus 2348TQ supports QSFP-H40G-ACU7M and QSFP-H40G-ACU10M active copper fabric cables for 40G connections. Passive copper fabric cables are not supported. Specify the required cable length and verify the parent-side connection before ordering; these cable options serve fabric links rather than the copper server-facing ports.
The Nexus 2348TQ has a maximum input operating power of 350W and a typical figure of 280W with 30 m host cabling. Size rack power allocation against the maximum rather than the typical figure. The selected power-supply configuration determines the required input voltage and airflow direction.
No, Nexus 2300 host interfaces are intended for end hosts rather than downstream switches. BPDU Guard is enabled on every host interface and cannot be disabled. A connected bridge that sends a BPDU causes its interface to enter an error-disabled state, preventing ordinary downstream switching attachment.
N2K-C2348TQ12F includes twelve QSFP-40G-SR-BD optics, or six FET-40G plus twenty-four FET-10G; N2K-C2348TQ4F includes four QSFP-40G-SR-BD, or two FET-40G plus eight FET-10G. Both bundles are discontinued. For legacy sparing, the larger bundle suits fully equipped fabric connections, while the smaller bundle suits fewer equipped links.
N2K-C2348TQ12F supports NXA-PHV-500W and NXA-PHV-500W-B high-voltage power-supply options, whereas N2K-C2348TQ12F-E does not support those options. Both optical bundles are discontinued. For existing installations, the non-E chassis suits matching high-voltage power configurations; the E chassis suits configurations using its supported conventional AC or DC supplies.
N2K-C2348TQ12F provides 48 copper host interfaces, while N2K-C2332TQ4F provides 32 copper host interfaces. Both bundles are discontinued. For legacy replacement orders, the 48-port chassis suits an installed rack requiring the larger host-interface count; the 32-port chassis suits an existing configuration with the smaller host-interface requirement.