High Density 1/10G BASE-T Switch
The Dell Networking S-Series S4820T 1/10G BASE-T Top-
of-Rack (ToR) switch is purpose-built for high performance
data centers. By leveraging a non-blocking, cut-through
(default mode is store and forward) switching architecture,
the S4820T delivers line-rate L2/L3 features to maximize
network performance. The S4820T design provides (48)
1/10G BASE-T ports that support 100Mb/1Gb/10Gb and
four 40GbE QSFP+ uplinks. Each 40GbE QSFP+ uplink can
be broken out into four 10GbE ports using breakout cables.
Priority-based Flow Control (PFC), Enhanced Transmission
Selection (ETS), Data Center Bridge Exchange (DCBx)
coupled with line rate throughput positions the S4820T
as an ideal solution for data center ToR applications
for servers, and storage arrays. In addition, the S4820T
incorporates multiple architectural features that optimize
data center network flexibility, eciency, and availability.
These features include IO panel to PSU airflow or PSU
to IO panel airflow for hot/cold aisle environments, and
redundant, hot-swappable power supplies and fans.
S4820T also supports Dell Networking’s Open Automation
Framework, which provides advanced network automation
and virtualization capabilities for virtual data center
environments. The Open Automation Framework is
comprised of a suite of inter-related network management
tools that can be used together or independently to
provide a network that is flexible, available and manageable
while helping to reduce operational expenses.
Key applications
• High-density 1/10G BASE-T ToR server aggregation in
high-performance data center environments
• Design with the Z-Series core switch to create a
two-tier, non-blocking 1/10/40GbE data center network
architecture
• Lossless iSCSI storage deployments using DCB
• Enterprise, Web 2.0, and cloud service providers’ data
center networks for ToR and end of row applications
Key features
• 1/10GbE copper connectivity for maximum flexibility
and investment protection
• 1.28 Tbps (full-duplex) non-blocking, cut-through
(default mode is store and forward) switching fabric of-
fers line-rate performance
• IO panel to PSU airflow or PSU to IO panel airflow
• Redundant, hot-swappable power supplies and fans
• Modular Dell FTOS software oers inherent stability
as well as advanced monitoring and serviceability
functions
• Supports jumbo frames for high-end performance
in virtualized environments and IP storage/server
communication
• 128 link aggregation groups with up to 8 members per
group
• Support for L2 multipath using Virtual Link Trunking
(VLT) & enhanced VLT (eVLT)
• Scalable L2/L3 Ethernet switching with QoS and
standards-based IPv4/IPv6 features
• User port stacking support for up to 6 units that is
managed as one logical device
• Open Automation Framework adds VM-awareness
as well as automated configuration and provisioning
capabilities to simplify the management of virtual
network environments
1/10G BASE-T Cabling Distances
Cable Type 1G BASE-T 10G BASE-T
Cat 6 UTP 100m (330 ft) 55m (180 ft)
Cat 6 STP 100m (330 ft) 100m (330 ft)
Cat 6A UTP 100m (330 ft) 100m (330 ft)
Cat 7 100m (330 ft) 100m (330 ft)
Flexible, powerful
top-of-rack switch for
data centers of all sizes
Dell Networking S-Series
S4820T high-performance 1/10/40GbE top-of-rack switch
High-density, 1RU 48-port 1/10G BASE-T switch plus four 40GbE uplinks with non-blocking line-rate
performance; feature-rich Dell Networking Operating System (FTOS); optimized for iSCSI, DCB and
ToR applications for Dell 12G rack servers , blade servers with Dell Networking MXL blade switch ,and
storage solutions.
(4 pages)
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