Zyxel XS3900-48F User Manual

Ultra-low Latency Top-of-rack Switch for
Data Center Bridging Deployments

• 1.28Tbpsnon-blocking

switching capacity

• Forty-eight(48)10GbESFP+

ports and four (4) 40GbE QSFP+
uplinks

• All48SFP+portssupport

1GbE/10GbE speeds

• Datacenteroptimizedwith

DCBX, 802.1Qaz (ETS) and

802.1Qbb (PFC) protocol
support

• Redundantandhot-swappable

fan trays and power supply
modules

• Modularandexiblerack-by-

rack deployment

• IPv6support

• Lowpowerconsumptiondesign

Data centers today are facing a new generation of challenges. Virtualization and data center

consolidation have imposed higher bandwidth demands on data center networks. The

competitive business landscape has also pushed forward the need for faster application

deployments. Next-generation data centers need to provide the eciency, exibility and

availability to facilitate business agility and competitiveness.

The ZyXEL XS3900-48F is a high-density top-of-rack (ToR) switch designed to facilitate fast

and modularized application deployments in next-generation data centers. It supports DCBX,

802.1Qaz (ETS) and 802.1Qbb (PFC) protocols, and oers 10GbE and 40GbE connectivity to

provide high bandwidth and ultra-low latency performance for converged networks and

virtualized applications. The 48 xed 10GbE SFP+ ports can also support 1GbE SFP transceivers

for added exibility and easy network transitions. With redundant and hot-swappable fan trays

and power supply modules, the XS3900-48F oers the redundancy, reliability and availability for

non-stop services.

Benets

Ultra-low latency performance

The ZyXEL XS3900-48F is a high-density ToR switch designed to provide ultra-low latency performance

for Data Center Bridging deployments. It features forty-eight (48) 10GbE SFP+ ports and four (4) 40GbE

QSFP+ uplinks for high-performance and scalable networking. Built with non-blocking switching

architecture, the XS3900-48F delivers 1.28 Tbps switching capacity and 952.4 Mpps forwarding rate, with

an additional 9 MB packet buer. The XS3900-48F oers ultra-low latency IP switching performance on

all ports, making it the ideal choice for ToR deployments in data centers.

Data center optimized service quality

The ZyXEL XS3900-48F is optimized to deliver the service quality required in demanding converged

data center networks. This high-performance ToR switch oers enhanced management of data center

trac with support for Data Center Bridging Exchange (DCBX), 802.1Qaz Enhanced Transmission

Selection (ETS) and 802.1Qbb Priority-based Flow Control (PFC) protocols. The switch can discover and

communicate with other DCB-enabled network devices with the DCBX protocol, and utilize PFC and

ETS to manage, pause and schedule the behavior of dierent trac to avoid trac congestions, ensure

lossless operation, and guarantee bandwidth for critical applications.

XS3900-48F

48-port 10GbE Top-of-rack
Switch with 40GbE Uplink

Modular and exible rack-by-rack deployment

To meet the demands of rapidly changing business operations, data centers today need to be more

agile and exible than ever before. Purpose-built for top-of-rack deployments, the ZyXEL XS3900-48F

facilitates modular data center deployments, which oer fast and easy rack-by-rack server changes

or upgrades. Not only do top-of-rack data center designs require less cabling infrastructure and oer

cleaner cable management, they also enable quicker deployment and easier scaling of network

applications.

KeyApplications

XS3900-48F

48-port 10GbE Top-of-rack Switch with 40GbE Uplink

Data Center Core

XS3900-48F

ToR Switch

XS3900-48F

ToR Switch

Server and Storage Racks

40GbE Fiber

Specications

Model XS3900-48F

Switch class Layer 2

Port Density

Total port count 52

10-Gigabit SFP+ 48

40-Gigabit QSFP+ 4

Performance

Switching capacity (Gbps) 1,280

Forwarding rate (Mpps) 952.4

Packet buffer (byte) 9 M

MACaddresstable 128 K

Power

Input 100 - 240 V AC, 50/60 Hz

Max. power consumption (watt) 232

Removable power module Yes

Physical Specifications

Dimensions (WxDxH)(mm/in.) 440 x 455 x 43/17.32 x 17.91 x 1.69

Weight (kg/lb.) 10.2/22.49

Removable power & fan modules Yes

Environmental Specifications

Operating

Storage

MTBF (hr) 156,472

Heat dissipation (BTU/hr) 1,024.32

Temperature 0°C to 50°C/32°F to 122°F

Humidity 10% to 95% (non-condensing)

Temperature -47°C to 70°C/-52.6°F to 158°F

Humidity 10% to 90% (non-condensing)

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