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Ultra-low Latency Top-of-rack Switch for
Data Center Bridging Deployments
• 1.28Tbpsnon-blocking
switching capacity
• Forty-eight(48)10GbESFP+
ports and four (4) 40GbE QSFP+
uplinks
• All48SFP+portssupport
1GbE/10GbE speeds
• Datacenteroptimizedwith
DCBX, 802.1Qaz (ETS) and
802.1Qbb (PFC) protocol
support
• Redundantandhot-swappable
fan trays and power supply
modules
• Modularandexiblerack-by-
rack deployment
• IPv6support
• Lowpowerconsumptiondesign
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 eciency, 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 oers 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 oers the redundancy, reliability and availability for
non-stop services.
Benets
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 buer. The XS3900-48F oers 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 oers enhanced management of data center
trac 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 dierent trac to avoid trac 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 oer fast and easy rack-by-rack server changes
or upgrades. Not only do top-of-rack data center designs require less cabling infrastructure and oer
cleaner cable management, they also enable quicker deployment and easier scaling of network
applications.
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KeyApplications
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
Specications
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
MACaddresstable 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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Features
XS3900-48F
48-port 10GbE Top-of-rack Switch with 40GbE Uplink
Standard Compliance
• IEEE 802.3x ow control
• IEEE 802.1Qbb Priority-based Flow Control
(PFC)
• IEEE 802.1Qaz Enhanced Transmission
Selection (ETS)
• IEEE 802.3ad LACP aggregation
• IEEE 802.3ah OAM
• IEEE 802.1ag CFM
• IEEE 802.1AB LLDP
• IEEE 802.1D Spanning Tree Protocol (STP)
• IEEE 802.1w Rapid Spanning Tree Protocol
(RSTP)
• IEEE 802.1s Multiple Spanning Tree Protocol
(MSTP)
• IEEE 802.1Q VLAN tagging
• IEEE 802.1p Class of Service (CoS)
prioritization
• IEEE 802.3z 1000BASE-X
• IEEE 802.3aq 10GbE
• IEEE 802.3ba 40GbE
• IEEE 802.1X port authentication
Data Center Bridging (DCB)
• IEEE 802.1Qbb Priority-based Flow Control
(PFC)
• IEEE 802.1Qaz Enhanced Transmission
Selection (ETS)
• IEEE 802.1Qaz DCB capability exchange
protocol (Proposed under the DCB task group
of the IEEE 802.1 working group)
ResilienceandAvailability
• IEEE 802.1D Spanning Tree Protocol (STP)
• IEEE 802.1w Rapid Spanning Tree Protocol
(RSTP)
• IEEE 802.1s Multiple Spanning Tree Protocol
(MSTP)
• MRSTP (ZyXEL proprietary)
• IEEE 802.3ad LACP link aggregation
• Up to 24 aggregation groups, 8 ports per
group
• Link aggregation algorithm of source/
destination IP addresses
• Loop guard
• ErrDisable recovery
• Dual conguration les
• Dual hot-swappable 350 W AC power supplies
• Dual hot-swappable fan modules
Trac Control
• 802.1Q static/dynamic VLANs (4 K/4 K)
• Port-based VLAN
• Protocol-based VLAN
• IP-subnet-based VLAN
• VLAN trunking
• VLAN translation
• VLAN ingress ltering
• 802.1ad VLAN stacking (Q-in-Q)
• LACP algorithm of source/destination IP
addresses
• GVRP
• Selective Q-in-Q
• L2PT
Security
• IEEE 802.1x
• Port security
• MAC authentication
• Layer 2 MAC ltering
• Layer 3 IP ltering
• Layer 4 TCP/UDP socket ltering
• BPDU transparency
• Static MAC forwarding
• Multiple RADIUS servers
• Multiple TACACS+ servers
• IEEE 802.1x VLAN and bandwidth assignment
by RADIUS
• Login authentication by RADIUS
• Login authentication by TACACS+
• TACACS+ accounting
• RADIUS accounting
• Authorization on TACACS+
• SSH v1/v2
• SSL
• Intrusion lock
• MAC freeze
• DHCP snooping
• ARP inspection
• Static IP/MAC binding
• Policy-based security ltering
• Port isolation
• IP source guard
• Limit number of MAC per port
• MAC search
• Guest-VLAN
• ACL packet ltering (IPv4/IPv6)
• PPPoE relay agent
• PPPoE option 82
• PPPoE intermediate agent
• CPU protection
Quality of Service (QoS)
• IEEE 802.1p priority queues per port: 8
• IEEE 802.1p queuing method: SPQ/WRR/WFQ
• IEEE 802.1p class of service (SPQ, WFQ, SPQ/
WFQ combination capable)
• DiServ (DSCP)
• Policy-based CoS
• Broadcast storm control: Broadcast, multicast,
unknown unicast (DLF) storm control
• Port-based (ingress/egress) rate limiting
• Rate limiting per IP/TCP/UDP per port
• Policy-based rate limiting
• Policy-based bandwidth control granularity
• Ingress CIR for bandwidth control
• IEEE 802.3x ow control
• Port-based egress trac shaping CIR/PIR
supported
• Policy-based prioritization
• Two Rate Three Color Marking (TRTCM)
Layer 2 Multicast
• L2 multicast (Group)
• IGMP snooping (v1, v2, v3)
• IGMP snooping fast leave
• Congurable IGMP snooping timer and
priority
• IGMP snooping statistics
• IGMP throttling
• MVR support
• IGMP ltering
• IGMP snooping immediate leave
• IGMP proxy mode & snooping mode selection
• IPv6 MLD snooping proxy
• Manageability
• SNMP v1, v2c, v3
• SNMP trap group
• RMON (1, 2, 3, 9)
• ICMP echo/echo reply
• Syslog
• IEEE 802.3ah OAM (Link discovery, loopback)
• IEEE 802.1ag CFM
• IEEE 802.1AB LLDP
IPv6Management
• IPv6 over Ethernet (RFC 2464)
• IPv6 addressing architecture (RFC 4291)
• Dual stack (RFC 4213)
• ICMPv6 (RFC 4443)
• Path MTU (RFC 1981)
• Minimum path MTU size of 1280 (RFC 5095)
• Encapsulation for maximum PMTU of 1500
• Neighbor discovery (RFC 4861)
• DHCPv6 relay
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XS3900-48F
48-port 10GbE Top-of-rack Switch with 40GbE Uplink
Device Management
• iStacking
• Web interface
• Management through console, Telnet, SNMP
• Remote rmware upgrade by FTP/Web
• Conguration saving and retrieving
• Multiple logins supported
• Congure clone
• Multilevel CLI
• CLI (Cisco-like)
• DHCP relay per VLAN
• DHCP client
• DHCP option 82
• Daylight saving
• NTP
• Port mirroring
• Port mirroring per IP/TCP/UDP
• Policy-based port mirroring
• RJ-45 out-of-band management port
• USB type RS-232 out-of-band console port
• sFlow
MIB
• RFC 1066 TCP/IP-based MIB
• RFC 1213, 1157 SNMPv2c/v3 MIB
• RFC 1493 Bridge MIB
• RFC 1643 Ethernet MIB
• RFC 1757 RMON Group 1, 2, 3, 9
• RFC 2011, 2012, 2013 SNMPv2 MIB
• RFC 2233 SMIv2 MIB
• RFC 2358 Ethernet-like MIB
• RFC 2460 IPv6 specication
• RFC 2674 Bridge MIB extension
• RFC 2819, 2925 remote management MIB
• RFC 4022 management information base for
transmission control protocol
• RFC 4113 management information base for
user datagram protocol
• RFC 4292 IP forwarding table MIB
• RFC 4293 Management Information Base
(MIB) for IP
• RFC 4862 IPv6 stateless address auto-
conguration
Certications
• CE EMC Class A
• EN 60950-1
• RoHS compliant
Accessories
Transceivers (Optional)
Model Speed Connector Wavelength Max. Distance DDMI
SFP10G-LR 10-Gigabit Duplex LC 1310 nm 10000 m (10936 yd) Yes
SFP10G-SR 10-Gigabit Duplex LC 850 nm 300 m (984 ft) Yes
Other
Model Description
RM410 Rack mount kit for the XS3900 Series
F o r m o re p r od u c t i nf o rm ati on , v is it u s o n t h e w e b a t w w w. Zy X E L .c om
Copyright © 2013 ZyXEL Communications Corp. All rights reserved. ZyXEL, ZyXEL logoare registered trademarks
of ZyXEL Communications Corp. All other brands, product names, or trademarks mentioned are the property of
their respective owners. All specications are subject to change without notice.
5-100-01013016 11/13