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N2K-C2148T-1GE
Cisco N2K-C2148T-1GE Nexus 2000 48-Port Gigabit Fabric Exten...
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N2K-C2148T-1GE is a Layer 2 fabric extender that places 48 Gigabit Ethernet copper server ports and four fixed 10G SFP+ fabric interfaces in a 1U rack chassis. This non-PoE member of the Cisco Nexus 2000 Series extends a compatible Cisco Nexus 5000 parent switch; it is not an independent access switch. The Nexus 2148T connects rack servers to a distributed modular system in which traffic returns to the parent for switching, including traffic between local server ports. The discontinued N2K-C2248TP-E-1GE differs in its base power configuration, with two included supplies instead of one. That distinction matters when matching replacement hardware to an existing power and spares plan.
N2K-C2148T-1GE price for new stock is is available on request. Get immediate quote. N2K-C2148T-1GE refurb price is $120.75.
Request bulk order quote for N2K-C2148T-1GE for additional pricing. Browse the full Cisco FEX Nexus 2000 Fabric Extenders series or explore all Cisco products.
176 Gbps hardware forwarding and 131 Mpps packet forwarding define the hardware performance available for server traffic. Four hardware queues per port separate traffic classes, while jumbo frames of 9216 bytes accommodate larger Ethernet payloads. EtherChannel hashing or static port pinning assigns traffic to fabric links, and egress strict-priority queuing and Weighted Round Robin control scheduling. N2K-C2148T-1GE receives its software image from the parent, so software maintenance follows the parent-switch installation rather than a separate local installation. Management uses parent-side CLI, Cisco Data Center Network Manager, SNMP and XML interfaces; locator LEDs identify the chassis and individual ports during servicing. 165W maximum input draw provides the operating ceiling for rack power planning. Safety and regulatory coverage includes UL 60950-1, IEC 60950-1, EN 60950-1, 47CFR Part 15 Class A, EN55022 Class A and RoHS-5. Standalone Layer 3 routing is not provided.
Specify condition, quantity, fabric-link accessories and any additional N2K-PAC-200W on the PO for N2K-C2148T-1GE in new sealed or certified refurbished condition. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot and optics bay recognition; firmware is verified and configurations wiped to factory default. ORM warranties are up to 3-year extended for new and up to 1 year for certified refurbished, with 30-day returns on every condition, terms apply; Cisco service and warranty ended November 30, 2017. Enterprise and volume POs are accepted, government buyers receive Net-30, and RMA with advance replacement is available across UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | NX-OS through parent switch |
Port Configuration | 48 x 1G copper / 4 x 10G SFP+ |
Max Power Draw | 165W |
Lifecycle Status | Cisco support ended November 30, 2017 |
Replacement PID | N9K-C9348GC-FXP / N2K-C2148T-1GE-RF (remanufactured; support ended) |
When staging replacement hardware against an existing parent, the minimum Nexus 5000 software release for this fabric extender is NX-OS 4.0(1A)N2(1). Include parent-side recognition and provisioning in the acceptance plan, and verify compatibility with the installed parent model and actual software release before issuing the purchase order.
When consolidating spares for mixed fabric-extender racks, Nexus 2200 accessories cannot be carried across to the Nexus 2148T. N2200-PAC-400W= is not a compatible substitute. Keep the spare inventories separate and specify exact replacement accessory part numbers, rather than matching wattage or appearance, on the purchase order.
Switching without an upstream parent
The fabric extender requires a compatible upstream parent and cannot replace an independent access switch. N9K-C9348GC-FXP is the current migration endpoint, with a different switch architecture.
100 Mbps copper server connections
The host interfaces accept 1000BASE-T rather than 100 Mbps links. N9K-C9348GC-FXP supports 100M/1G copper interfaces across the same 48-port copper density.
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| N2K-C2148T-1GE |  N2K-C2232TM-E |  N2K-C2232TM-E-10GE |  N2K-C2232TF-E |  N2K-C2348UPQ-10GE | |
|---|---|---|---|---|---|
| Depth | 508 mm | 449.6 mm | 449.6 mm | 449.6 mm | 356.9 mm |
| Ethernet Technology | 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-C2148T-1GE | N2K-C2232TM-E | N2K-C2232TM-E-10GE | N2K-C2232TF-E | N2K-C2348UPQ-10GE |
| Power Consumption | 165W | 300W | 300W | 300W | 200W |
| Switching Capacity | 176 Gbps | 800 Gbps | 800 Gbps | 800 Gbps | 1440 Gbps |
| Weight | 8.2 kg | 8.4 kg | 8.4 kg | 8.4 kg | 7 kg |
| Width | 439.4 mm | 439.4 mm | 439.4 mm | 439.4 mm | 439.4 mm |
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N2K-C2148T-1GE identifies a Nexus 2000 fabric extender: N2K is the family prefix, C2148T identifies the 2148T copper model with 48 host interfaces, and 1GE identifies Gigabit Ethernet access. The base configuration includes one N2K-PAC-200W supply, one N2K-C2148T-FAN= module and four 10G fabric interfaces.
N2K-C2148T-1GE is managed through its parent switch using CLI, Cisco Data Center Network Manager, CiscoWorks, SNMP and XML/NETCONF interfaces. Configuration and software arrive over the fabric connection rather than through an independent management installation. Specify the parent-side access method and credentials in the deployment acceptance plan.
N2K-C2148T-1GE is discontinued: end of sale was November 24, 2012, and Cisco support ended November 30, 2017. The original replacement, N2K-C2248TP-E, is also discontinued. Its forward migration leads to N9K-C9348GC-FXP, so distinguish an exact replacement order from a separate migration project.
ORM Systems offers N2K-C2148T-1GE new sealed with up to 3-year extended warranty or certified refurbished with up to 1 year. Both conditions have 30-day returns, terms apply. Cisco's original 1-year limited hardware warranty and Cisco service ended November 30, 2017. ORM-certified refurbishment is separate from Cisco remanufacturing.
The Nexus 2148T has four fixed 10G SFP+ fabric interfaces for connection to its parent. SFP-10G-SR and SFP-10G-LR provide optical options, while SFP-H10GB-CU3M is a 3m direct-attach cable. Match media at both ends before ordering; the interfaces are not removable network-module bays.
N2K-C2148T-1GE ships with one N2K-PAC-200W AC supply and accepts a second N2K-PAC-200W for 1:1 redundancy. The second N2K-PAC-200W is optional rather than included in the base configuration. Input is 90-264V AC. Confirm supply quantities and independent power-feed arrangements when specifying replacement or spare equipment.
N2K-C2148T-1GE provides 48 copper host interfaces at 1000BASE-T, not 100 Mbps or 10GBASE-T. The faster interfaces are fabric links to the parent, not higher-speed server connections. Check the required speed of every server or management interface before assigning the extender to an existing rack.
N2K-C2248TP-E-1GE has a two-supply base configuration, while N2K-C2148T-1GE has a one-supply base configuration. Both models are discontinued, so this comparison concerns existing installations rather than current-generation procurement. The base 2148T matches one-supply replacement requirements; the 2248TP-E matches installations expecting a two-supply configuration at delivery.
N2K-C2148T-1GE has 48 copper server ports, while N2K-C2224TP-1GE has 24. The 2224TP is also discontinued, so use this distinction when matching an existing installation or spare inventory. The 2148T matches a 48-port requirement; the 2224TP matches installations retaining a 24-port extender.
N9K-C9348GC-FXP provides four 10/25G interfaces and two 40/100G interfaces, while N2K-C2148T-1GE has four 10G fabric interfaces. The current migration endpoint is a switch rather than the older parent-dependent extender. Retain the 2148T for an exact legacy replacement; evaluate the 9348GC-FXP for a redesigned uplink architecture.
N2K-C2148T-1GE-RF is Cisco's remanufactured form of N2K-C2148T-1GE, not ORM-certified refurbishment. The -RF suffix identifies a different supply condition rather than a different port layout. Cisco support for this hardware has ended; distinguish the remanufacturing program, seller condition and applicable seller coverage when comparing quotations.
The Cisco Nexus 2148T supports 176 Gbps hardware forwarding and 131 Mpps packet forwarding. Those figures describe the extender's hardware performance, while the parent fabric connection carries 40 Gbps in each direction. Size aggregate upstream traffic separately from hardware forwarding performance when validating replacement equipment against existing rack workloads.
The Nexus 2148T occupies 1U and measures 43.7 mm high by 439.4 mm wide by 508 mm deep. Maximum fully loaded weight is 8.2 kg, and the operating range is 0°C to 40°C. Confirm rack depth, equipment loading and ambient conditions before ordering the chassis.
No, N2K-C2148T-1GE is not a standalone stackable switch; the Nexus 2000 architecture combines fabric extenders with a parent switch as a distributed modular system. Additional access ports are provisioned through the parent rather than by forming a local stack. Plan parent compatibility and fabric connections instead.
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