N3K-C3548P-XL – 48×1/10G SFP+ Ports – 1RU Nexus 3548-XL – 16GB XL Profile

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N3K-C3548P-XL Description

The N3K-C3548P-XL is a Cisco Nexus 3548-XL data center switch from the Nexus 3500 platform, built as a 1RU top-of-rack switch for low-latency 10G server access, trading and HPC networks. The switch has 48 fixed SFP+ ports at 1 or 10 Gbps, 960 Gbps of switching capacity, 720 mpps of forwarding and 16 GB each of system memory and bootflash. All 48 ports are enabled without an upgrade license.

Quick Specs

Parameter

Specification

Product ID

N3K-C3548P-XL

Product type

1RU data center switch

Cisco model

Nexus 3548-XL Switch

Data ports

48 fixed SFP+ ports

Port speed

1 or 10 Gbps SFP+

Switching capacity

960 Gbps

Forwarding rate

720 mpps

System memory

16 GB

Bootflash memory

16 GB

Cooling and power design

Dual redundant power supplies and four hot-swappable fans with forward or reversed airflow

Product Performance

Switching Capacity
Forwarding Rate
Jumbo Frame MTU

Key Features

48 Ports Enabled From The Start

All 48 SFP+ ports run at 1 or 10 Gbps with no upgrade license. The same chassis in 24-port form needs the N3548-24P-UPG= license to reach this count.

XL Memory And Bootflash

The XL models pair a faster 2.5 GHz CPU with 16 GB of system memory and 16 GB of bootflash. The X models carry 4 GB and 4 GB.

960 Gbps At Line Rate

Switching capacity is 960 Gbps and forwarding is 720 mpps, with Layer 2 and Layer 3 traffic at line rate on all ports. MTU can be set up to 9216 bytes.

Airflow Set By Field Parts

Port-side exhaust uses the blue-handled fans and supplies, and port-side intake uses the red-handled ones. Mixing directions in one chassis defeats the rack airflow plan.

Redundant Supplies And Fan Redundancy

Two hot-swappable power supplies and four individual fans with 3+1 redundancy keep the switch running through a single part failure. Typical draw is 112W and maximum is 213W.

Tiered Routing Licenses

Layer 2 is built in, while routing needs the N3548-BAS1K9 base license. N3548-LAN1K9 adds LAN Enterprise features on top of it, and N3548-ALGK9 adds Algo Boost.

Application Scenarios

Full-Density 10G Server Access

In a top-of-rack position, the switch connects up to 48 servers over SFP+ at 10G, with line-rate Layer 2 and Layer 3 forwarding on every port.

Trading And HPC Clusters

Latency-sensitive clusters use the switch as a flat 1/10G access layer, where its 960 Gbps of capacity and 720 mpps of forwarding keep all ports at line rate.

Aisle-Matched Data Center Rows

Racks that exhaust hot air at the port side or draw cold air in at the port side can run the switch with fans and power supplies chosen for that direction.

Product Comparison

Parameter

N3K-C3548P-XL

N3K-C3524P-XL

N3K-C3548P-10GX

Enabled SFP+ ports

48

24

48

Port speeds

1 or 10 Gbps

1 or 10 Gbps

1 or 10 Gbps

Port expansion

Not applicable

N3548-24P-UPG= adds 24 ports (48 total)

Not applicable

Switching capacity

960 Gbps

480 Gbps

960 Gbps

Forwarding rate

720 mpps

360 mpps

720 mpps

Buffer size

18 MB total (6 MB shared among 16 ports)

18 MB total (6 MB shared among 16 ports)

18 MB total (6 MB shared among 16 ports)

System memory

16 GB

16 GB

4 GB

Bootflash memory

16 GB

16 GB

4 GB

Airflow

Port-side exhaust or port-side intake

Port-side exhaust or port-side intake

Port-side exhaust or port-side intake

N3K-C3548P-XL has all 48 SFP+ ports on the order line at 960 Gbps and 720 mpps, while N3K-C3524P-XL enables 24 ports at 480 Gbps and 360 mpps. A rack that only needs 24 active ports can start on N3K-C3524P-XL and expand to 48 later with the N3548-24P-UPG= license, so N3K-C3548P-XL fits designs that need all 48 ports from the first purchase. N3K-C3548P-10GX has the same 48 ports and throughput but only 4 GB of system memory and 4 GB of bootflash against 16 GB and 16 GB, so choose an XL model when the 16 GB profile is required.

Ordering Checklist

  • Airflow direction: Order fans NXA-FAN-30CFM-F with N2200-PAC-400W or N2200-PDC-400W for port-side exhaust, or NXA-FAN-30CFM-B with N2200-PAC-400W-B or N3K-PDC-350W-B for port-side intake. Fans and power supplies of opposite directions push air against each other, and the blue or red handle colors are the only visual check.
  • Layer 3 license: Add N3548-BAS1K9 for routing; N3548-LAN1K9 adds LAN Enterprise and needs the Base license; N3548-ALGK9 is for Algo Boost. The default system license covers Layer 2 only.
  • Power supply type: Choose AC (N2200-PAC-400W or -B) or DC (N2200-PDC-400W or N3K-PDC-350W-B), plus the AC cord for the destination country. DC supplies ship without a power cord outside Argentina, Brazil and Japan, and AC cord PIDs differ by country.
  • Rack-mount kit: Add N3K-C3064-ACC-KIT= or NXK-ACC-KIT-1RU for a 19-inch rack. Neither kit includes the eight 10-32 or 12-24 mounting screws, and a non-19-inch rack needs a separate bracket kit.

Optional Add-ons

Model

Description

N3548-BAS1K9

Nexus 3000 Layer 3 Base License

N3548-LAN1K9

Nexus 3548 Layer 3 LAN Enterprise License, requires N3K-BAS1K9

N3548-ALGK9

Nexus 3500 Algo Boost License

NDB-FX-SWT-K9

License for Tap/SPAN aggregation using Cisco Nexus Data Broker

N2200-PAC-400W

400W AC power supply, forward airflow, port-side exhaust

N2200-PAC-400W-B

400W AC power supply, reversed airflow, port-side intake

N2200-PDC-400W

400W DC power supply, forward airflow, port-side exhaust

N3K-PDC-350W-B

350W DC power supply, reversed airflow, port-side intake

NXA-FAN-30CFM-F

Individual fan, forward airflow, port-side exhaust

NXA-FAN-30CFM-B

Individual fan, reversed airflow, port-side intake

N3K-C3064-ACC-KIT=

Nexus 3548 accessory kit, same as Nexus 3064

Specifications

Parameter Specification Parameter Specification
Product ID N3K-C3548P-XL Cisco model Nexus 3548-XL Switch
Product type 1RU data center switch Order description Nexus 3548-XL Switch, 48 SFP+
Data ports 48 fixed SFP+ ports Port speed 1 or 10 Gbps
Management port One 10/100/1000-Mbps management port Console port One RS-232 serial console port
USB ports Two USB ports Timing port One 1-PPS timing port with RF1.0/2.3 QuickConnect connector type
Switching capacity 960 Gbps Forwarding rate 720 mpps
Line-rate support Layer 2 and Layer 3 on all ports Maximum MTU Up to 9216 bytes
System memory 16 GB Bootflash memory 16 GB
Power supply slots 2 redundant power supplies Power supply selection N2200-PAC-400W 400W AC, N2200-PAC-400W-B 400W AC, N2200-PDC-400W 400W DC, or N3K-PDC-350W-B 350W DC selected by airflow and input type
Input voltage 100 to 240 VAC Input frequency 50 to 60 Hz
Power supply efficiency 89 to 91% at 220V Typical operating power 112W
Maximum power 213W Typical heat dissipation 383 BTUs per hour
Maximum heat dissipation 727 BTUs per hour Cooling schemes Forward airflow or reversed airflow
Fan modules Four hot-swappable fans with 3+1 redundancy Dimensions 1.72 x 17.3 x 18.38 in. (4.36 x 43.9 x 46.7 cm)
Weight 17.4 lb (7.9 kg) Operating temperature 32 to 104 F (0 to 40 C)
Storage temperature -40 to 158 F (-40 to 70 C) Operating humidity 10 to 85% noncondensing
Nonoperating humidity 5 to 95% noncondensing Altitude 0 to 10,000 ft (0 to 3000 m)
VLAN scale Up to 4096 VLANs ACL entries 4096
EtherChannels 24 Ports per EtherChannel 24
Buffer size 6 MB shared among 16 ports, 18 MB total Supported NX-OS package reference nxos64-msll image for 3500-XL switches in Release 10.6(3)F

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Need pricing, stock, or shipping details for the N3K-C3548P-XL ? 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 [email protected] for a fast quotation.

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    Our field engineer deployed this remotely with minimal documentation. It was that straightforward.

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    We have a standing order arrangement with Layer23. It works perfectly.

    Andrea Davis
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    They helped us compare options side by side. Saved us from ordering the wrong item.

Questions & Answers

  • What role does N3K-C3548P-XL play?

    N3K-C3548P-XL is a 1RU Cisco Nexus 3548-XL data center switch with 48 fixed SFP+ ports. Each port supports 1 or 10 Gbps.
  • How fast can N3K-C3548P-XL forward traffic?

    N3K-C3548P-XL provides 960 Gbps switching capacity and a 720 mpps forwarding rate. It is the full 48-port XL configuration.
  • Does N3K-C3548P-XL include 16 GB system memory?

    Yes, N3K-C3548P-XL includes 16 GB system memory and 16 GB bootflash. The non-XL N3K-C3548P-10GX lists 4 GB for each.
  • How does N3K-C3548P-XL differ from N3K-C3524P-XL?

    N3K-C3548P-XL provides 48 enabled SFP+ ports and 960 Gbps capacity, while N3K-C3524P-XL starts with 24 enabled SFP+ and 480 Gbps.
  • Which cooling options are available for N3K-C3548P-XL?

    N3K-C3548P-XL uses four hot-swappable fans with forward or reversed airflow. It also supports a pair of redundant power supplies for the chassis.
  • What power draw is listed for N3K-C3548P-XL?

    N3K-C3548P-XL lists 112W typical operating power and 213W maximum power. Rack power planning should use the documented maximum figure.
  • When is N3K-C3548P-XL preferable to N3K-C3524P-XL?

    N3K-C3548P-XL is preferable when all 48 SFP+ ports should be enabled in the initial order and the design needs 960 Gbps capacity.
  • Can N3K-C3548P-XL run its SFP+ ports above 10 Gbps?

    No, N3K-C3548P-XL provides fixed SFP+ ports operating at 1 or 10 Gbps. A higher native access speed requires another switch family.

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