Dell Networking S55, Networking S Series Specifications

Dell Networking S Series

S55 high-performance 1/10GbE top-of-rack switch

48-port GbE switch with up to four modular 10GbE ports or stacking interfaces in just 1RU, non-blocking
architecture supports low-latency switching and routing, integrated network automation and
virtualization technology with Networking’s Open Automation Framework, reliable, data center optimized

design supports I/O-to-PSU and PSU-to-I/O airows and redundant, hot-swappable power.

Data center optimized 1/10GbE switch

The Dell Networking S Series S55 1/10GbE top-of-rack
(ToR) switch is optimized for lowering operational costs
while increasing scalability and improving manageability
at the network edge. Optimized for high-performance
data center applications, the S55 leverages a non-blocking
architecture that delivers low-latency L2 and L3 switching
to eliminate network bottlenecks. The high-density S55
design provides 48 GbE access ports with up to four
modular 10GbE uplinks in just 1RU to conserve valuable
rack space. The S55 incorporates multiple architectural

features that optimize data center network eciency and
reliability, including I/O-to-PSU panel airow or PSU­to-I/O panel airow for hot/cold aisle environments,

and redundant, hot-swappable power supplies and
fans. A “scale-as-you-grow” ToR solution that is simple
to deploy and manage, up to 12 S55 switches can be
stacked to create a a single logical switch by utilizing
Dell Networking’s stacking technology and high-speed
stacking modules.

The S55 provides support for Dell Networking’s Open
Automation Framework, which leverages capabilities
of the modular Dell FTOS software to bring network
automation into virtual data center environments, making
them more responsive and able to adapt to changes
in application requirements. 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 more exible,

available and manageable while reducing operational

expenses.

Applications

• 1/10GbE server aggregation at the ToR in high­performance data center environments

• With the S4810/S4820T/Z9000 virtualized switch/
router to create a at, two-tier, non-blocking 1/10GbE

data center network design

Key features

• The 1RU S55 switch delivers 48 GbE access interfaces:

– 44 10/100/1000Base-T copper ports (xed RJ45)

– 4 GbE ports that can be congured for copper

or ber (SFP)

• In addition, the S55 provides two optional high-speed

slots that support the following uplink modules:

– 2-port 10GbE SFP+ modules

– 2-port 12Gbps stacking module

• 176Gbps switching capacity delivers, non-blocking
switching with less than 5 microseconds of latency

• Scalable layer 2 and layer 3 switching with a full
complement of standards-based features in FTOS

• I/O-to-PSU panel airow or PSU-to-I/O panel airow

• Redundant, hot-swappable power supplies (AC or DC)

and fans

• Stacking technology enables up to 12 S55 switches to
be managed as a single unit

• Open Automation Framework adds VM awareness as
well as automated conguration and provisioning

capabilities to simplify the management of virtual
network environments

• Modular Dell FTOS software delivers inherent
stability as well as advanced monitoring and
serviceability functions

• Supports 9,252 byte jumbo frames

• Low power consumption of 130W for a fully-congured

unit

Wire-speed 1/10GbE,
low-latency ToR switch

delivers ecient data

center performance.

Specications: S55 high-performance 1/10GbE ToR switch

Description

S55

44 x 10/100/1000Base-T, 4 x 1GbE SFP, 1 x AC PSU, 2 x FM, IO/

to PSU Panels (Normal)

44 x 10/100/1000Base-T, 4 x 1GbE SFP, 1 x AC PSU, 2 x FM,

PSU to I/O Panels (Reverse)

44 x 10/100/1000Base-T, 4 x 1GbE SFP, 1 x DC PSU, 2 x FM,

I/O to PSU Panels (Normal)

44 x 10/100/1000Base-T, 4 x 1GbE SFP, 1 x DC PSU, 2 x FM,

PSU to I/O Panels (Reverse)
Redundant power supplies and Fan modules*
AC Power Supply, I/O to PSU Panels (Normal)
AC Power Supply, PSU to I/O Panels (Reverse)
DC Power Supply, I/O to PSU Panels (Normal)
DC Power Supply, PSU to I/O Panels (Reverse)

Fan Module, 1 x Fan, I/O to PSU Panels (Normal)
Fan Module, 1 x Fan, PSU to I/O Panels (Reverse)

Modules*
2-port 10GE SFP+ module
2-port 12Gbps high-speed stacking module
Optics*
SFP+, 10GbE, SR, 850nm Wavelength, 300m reach
SFP+, 10GbE, LR, 1310nm Wavelength, 10Km reach
SFP+, 10GbE, ER, 1310nm Wavelength, 40Km reach
SFP+, 10GbE, LRM, 1310nm Wavelength, 220m reach
SFP, 1000Base-SX, 850nm Wavelength, 550m reach
SFP, 1000Base-LX, 1310nm Wavelength, 10Km reach
SFP, 1000Base-ZX, 1550nm Wavelength, 80Km reach
SFP, 100Base-FX, 1310nm Wavelength, 2Km reach
SFP, 1000Base-T
Cables*
SFP+, CU, 10GbE, Direct Attach Cable, 0.5m
SFP+, CU, 10GbE, Direct Attach Cable, 1m
SFP+, CU, 10GbE, Direct Attach Cable, 2m
SFP+, CU, 10GbE, Direct Attach Cable, 5m
SFP+, CU, 10GbE, Direct Attach Cable, 7m
Stacking Cable, 0.6m, 12Gbps
Software
FTOS – Networking Operating System Software, L3, S55

Note: In-eld change of airow direction not supported.

*Ordered separately

Physical

44 10/100/1000Base-T ports
4 GbE SFP ports

1 RJ45 console management port with RS232 signaling
1 RJ45 Ethernet management port

1 USB-B management port
2 USB 2.0 ports (1 USB A, 1 USB B)
2 module bays

Size: 1 RU, 1.75 x 17.42 x 18.75 (in), 4.44 x 44.25 x 47.62 (cm)

Weight: 14.41 lbs (6.54 kg)
ISO 7779 A-weighted sound pressure level:63.9 dBA at 73.4°F (23°C)
Power supply: 100–240V AC 50/60 Hz, –44 to -60V DC

Max. thermal output: 443 BTU/h
Max. current draw per system:

2A at 100/120V AC, 1A at 200/240V AC, 3.6A at -48V DC

Max. power consumption: 130W
Max. operating specications:

Operating temperature: 32°F to 122°F (0°C to 50°C)
Operating humidity: 10 to 85% (RH), non-condensing

Max. non-operating specications:

Storage temperature: –40°F to 158°F (–40°F to 70°C)
Storage humidity: 5 to 95% (RH), non-condensing
Reliability: MTBF 169,315 hours

Redundancy

Ring stacking topology with dynamic master election
Dual modular slots with up to four 10GbE ports
Link aggregation across stack members
Hot swappable redundant AC or DC power
Hot swappable redundant fan

Performance

MAC addresses: 32K
IPv4 routes: 16K
IPv6 routes: 8K
Switching capacity 176Gbps
Forwarding capacity: 131Mpps

Link aggregation: 8 links per group, 128 groups per
stack
Stacking capacity: 96Gbps per stack member
Queues per port: 4 queues
VLANs: 4096
Layer 2 switching: All protocols, including IPv4 and
IPv6
Layer 3 routing: IPv4 and IPv6
LAG load balancing: Based on layer 2, IPv4 or IPv6
headers
Switching latency: <5 µs for 64 byte frames

Packet buer memory: 4MB

CPU memory: 2GB
SD card: 8GB

IEEE compliance

802.1AB LLDP

802.1ag Connectivity fault Management

802.1D Bridging, STP

802.1p L2 Prioritization

802.1Q VLAN Tagging, Double VLAN Tagging,
GVRP

802.1s MSTP

802.1w RSTP

802.1X Network Access Control

802.3ab Gigabit Ethernet (1000Base-T)

802.3ac Frame Extensions for VLAN Tagging

802.3ad Link Aggregation with LACP

802.3ae 10 Gigabit Ethernet (10GBase-X)

802.3ak 10 Gigabit Ethernet (10GBase-CX4)

802.3i Ethernet (10Base-T)

802.3u Fast Ethernet (100Base-TX)

802.3x Flow Control

802.3z Gigabit Ethernet (1000Base-X)
ANSI/TIA-1057 LLDP-MED
Force10 FRRP (Force10 Redundant Ring
Protocol)
Force10 PVST+
MTU 9,252 bytes

RFC and I-D compliance

General Internet protocols

768 UDP 1321 MD5
793 TCP 1350 TFTP

854 Telnet 2474 Dierentiated Services

959 FTP 3164 Syslog

General IPv4 protocols

791 IPv4 1812 Routers
792 ICMP 1858 IP Fragment Filtering
826 ARP 2131 DHCP (server & relay)

1027 Proxy ARP 2338 VRRP
1035 DNS (client) 3021 31-bit Prexes

1042 Ethernet Transmission 3046 DHCP Option 82
1191 Path MTU Discovery 3069 Private VLAN
1305 NTPv3 3128 Tiny Fragment Attack
1519 CIDR Protection
1542 BOOTP (relay)

General IPv6 protocols

1981 Path MTU Discovery 2463 ICMPv6
(partial) 2464 Ethernet
2460 IPv6 Transmission

2461 Neighbor Discovery 2675 Jumbograms

(partial) 3587 Global Unicast
2462 Stateless Address Address Format

Autoconguration 4291 Addressing

(partial)

RIP

1058 RIPv1 2453 RIPv2

OSPF

1587 NSSA 3623 Graceful Restart
2154 MD5 4222 Prioritization and
2328 OSPFv2 Congestion voidance
2370 Opaque LSA

BGP

1997 Communities 3065 Confederations

2385 MD5 4360 Extended

2439 Route Flap Damping Communities

2796 Route Reection 4893 4-byte ASN

2842 Capabilities 5396 4-byte ASN
2858 Multiprotocol representations

Extensions 4271 BGPv4

2918 Route Refresh 4724 Graceful Restart

Multicast

1112 IGMPv1 4541 IGMP v1/v2/v3
2236 IGMPv2 Snooping
3376 IGMPv3 4601 PIM-SM for IPv4
3569 SSM for IPv4

Network management

1155 SMIv1
1156 Internet MIB
1157 SNMPv1

1212 Concise MIB Denitions

1215 SNMP Traps
1493 Bridges MIB
1850 OSPFv2 MIB
1901 Community-based SNMPv2
1905 SNMPv2
1907 SNMP MIB
2011 IP MIB
2012 TCP MIB
2013 UDP MIB
2024 DLSw MIB
2096 IP Forwarding Table MIB
2233 Interfaces MIB
2570 SNMPv3
2571 Management Frameworks
2572 Message Processing and
Dispatching
2574 SNMPv3 USM
2575 SNMPv3 VACM

2576 Coexistence Between SNMPv1/

v2/v3
2578 SMIv2

2579 Textual Conventions for SMIv2

2580 Conformance Statements for
SMIv2
2618 RADIUS Authentication MIB
2665 Ethernet-like Interfaces MIB

2674 Extended Bridge MIB

2787 VRRP MIB
2819 RMON MIB (groups 1, 2, 3, 9)
2863 Interfaces MIB
2865 RADIUS
3273 RMON High Capacity MIB
3416 SNMPv2
3418 SNMP MIB
3434 RMON High Capacity Alarm MIB
3580 802.1X with RADIUS
4273 BGP MIBv1
4293 IPv6 MIB
5060 PIM MIB
ANSI/TIA-1057 LLDP-MED MIB
draft-grant-tacacs-02 TACACS+
IEEE 802.1AB LLDP MIB
IEEE 802.1AB LLDP DOT1 MIB
IEEE 802.1AB LLDP DOT3 MIB
sFlow.org sFlow v5
sFlow.org sFlow v5 MIB (version 1.3)

MIBs

F10-CHASSIS-MIB
F10-IF-EXTENSION-MIB
F10-LINK-AGGREGATION-MIB
F10-PRODUCTS-MIB
F10-S-SERIES-CHASSIS-MIB
FORCE10-BGP4-V2-MIB draft-ietf-idr-bgp4-mibv2-05
FORCE10-COPY-CONFIG-MIB
FORCE10-MSTP-MIB ruzin-mstp-mib-02 (traps only)
FORCE10-SYSTEM-COMPONENT-MIB
FORCE10-TRAP-EVENT-MIB

Regulatory Compliance

Safety

UL/CSA 60950-1, 2nd Edition
EN 60950-1, 2nd Edition
IEC 60950-1, 2nd Edition Including all National Deviations

and Group Dierences

EN 60825-1 Safety of Laser Products Part 1: Equipment

Classication Requirements and User’s Guide

EN 60825-2 Safety of Laser Products Part 2: Safety of
Optical Fibre Communication Systems
FDA Regulation 21 CFR 1040.10 and 1040.11
China CCC

Emissions

Australia/New Zealand: AS/NZS CISPR 22: Class A
Canada: ICES-003, Issue-4, Class A
Europe: EN 55022: (CISPR 22), Class A

Japan: VCCI Class A

USA: FCC CFR 47 Part 15, Subpart B, Class A
Brazil: Anatel

Immunity

EN 300 386 EMC for Network Equipment
EN 55024
EN 61000-3-2: Harmonic Current Emissions
EN 61000-3-3: Voltage Fluctuations and Flicker
EN 61000-4-2: ESD
EN 61000-4-3: Radiated Immunity
EN 61000-4-4: EFT
EN 61000-4-5: Surge

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July 2013 | Version 2

dell-networking-s series-s55-spec sheet