The S series fixed Ethernet switches integrate the access and transmission functions to provide reliable access/aggregation and high-quality transmission of services on enterprise networks. The switches are built on an integrated hardware platform, and their hardware system consists of the chassis, power module, fan module, extended cards, and Switch Control Unit (SCU).
The S series fixed Ethernet switches are available in a variety of models for you to choose based on your network requirements.
S6700 Series Switches Characteristics The S6700 series Ethernet switches are next-generation 10G fixed switches. The S6700 can function as a core switch on a campus network. The S6700 has industry-leading performance and provides line-speed 10GE access ports and line-speed 40GE even 100GE uplink ports. It can function as a core switch on a campus network to provide 40 Gbit/s even 100 Gbit/s traffic aggregation.
The Huawei S6720-30C-EI-24S-DC is a mid-range DC-powered enterprise-grade all-optical 10 Gigabit switch in the Huawei S6720 series. Its core advantage is its all-optical core/aggregation networking for medium-sized DC-powered scenarios—24 10G pure optical ports + 6 40G uplink optical ports, adaptable to 5000-8000 terminals; DC input voltage supports a wide range of -48V to -60V, suitable for IDC/industrial centralized power supply systems; total switching capacity ≥960Gbps, forwarding performance up to 720Mpps, equipped with simplified enterprise-grade routing, VRRP high availability, fine-grained QoS and other core functions; built-in 12KV surge protection + power redundancy design, annual failure rate <0.015%, making it a mid-range preferred choice for medium-sized campus core layers, small and medium-sized IDCs, and industrial aggregation layers, balancing performance, stability and cost-effectiveness.
S6720-30C-EI-24S-DC FAQ
Q1: What are the core differences between this and the high-end S6720-54C-EI-48S-DC?
A1: The former is a mid-range 24-port model, with port count suitable for medium-sized scenarios, featuring simplified enterprise-level functions and a more cost-effective price; the latter is a high-end 48-port high-density model, offering full functionality and high-density access, suitable for large-scale scenarios. Both have consistent DC power supply stability and core performance.
Q2: Is the bandwidth sufficient for simultaneous high-load operation of 24 ports (10G) + 6 ports (40G)?
A2: Yes, it is sufficient. The total switching capacity is ≥960Gbps, and the forwarding performance reaches 720Mpps, easily handling concurrent transmission from 8000 terminals. The 40G uplink provides 240G total bandwidth with no risk of lag or packet loss.
Q3: Is it necessary to choose a mid-range DC enterprise-level switch for medium-sized scenarios?
A3: DC power supply is suitable for centralized power supply needs in professional scenarios, enterprise-level functions meet complex networking requirements, 24 ports avoid resource waste, and the price is 30%-40% lower than high-end models, making it a balanced choice of "performance + cost".
S6720-30C-EI-24S-DC Appearance
1
Twenty-four 10GE SFP+ ports
Applicable modules and cables:
GE optical module
GE-CWDM optical module
GE-DWDM optical module
GE copper module (100M/1000M auto-sensing supported in V200R009 and later versions)
10GE SFP+ optical module (OSXD22N00 not supported)
10GE-CWDM optical module
10GE-DWDM optical module (applicable in V200R009C00 and later versions)
1 m, 3 m, 5 m, and 10 m SFP+ high-speed copper cables
3 m and 10 m SFP+ AOC cables
0.5 m and 1.5 m SFP+ dedicated stack copper cables (the last 16 ports are supported, used for zero-configuration stacking, supported in V200R011C10 and later versions)
2
Two 40GE QSFP+ ports
Applicable modules and cables:
QSFP+ optical module
1 m, 3 m, and 5 m QSFP+ to QSFP+ high-speed copper cables
1 m, 3 m, and 5 m QSFP+ to 4*SFP+ high-speed copper cables
10 m QSFP+ to QSFP+ AOC cable (applicable in V200R009C00 and later versions)
10 m QSFP+ to 4*SFP+ AOC cable (applicable in V200R009C00 and later versions)
NOTE:
A 40GE QSFP+ optical port can be split into four 10GE ports.
3
One ETH management port
4
One console port
5
One USB port
6
Ground screw
NOTE:
It is used with a ground cable.
7
ESN label
NOTE:
You can draw it out to view the ESN and MAC address of the switch.
8
Rear card slot
NOTE:
Card supported:
ES5D21Q04Q01
ES5D21X08S00 (applicable in V200R012C00 and later versions)
ES5D21X04S01 (applicable in V200R019C00 and later versions)
9
Fan slot
NOTE:
Applicable fan module:
FAN-060B-B (Fan Box (B, Fan Panel Side Exhaust))
10
Power module slot 2
NOTE:
Applicable power modules:
PDC-350WA-B (350 W DC Power Module)
PAC-600WA-B (600 W AC Power Module)
PAC-600WD-B (600 W AC Power Module) (applicable in V200R020C10 and later versions)
11
Power module slot 1
NOTE:
Applicable power modules:
PDC-350WA-B (350 W DC Power Module)
PAC-600WA-B (600 W AC Power Module)
PAC-600WD-B (600 W AC Power Module) (applicable in V200R020C10 and later versions)
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S6720-30C-EI-24S-DCPort Description
10GE SFP+ port
Attribute
Description
Connector type
LC/PC
Optical port attributes
Depend on the optical module used
Standards compliance
IEEE802.3ae
Working mode
GE/10GE auto-sensing
40GE QSFP+ port
Attribute
Description
Connector type
MPO/LC
Optical port attributes
Depend on the optical module used
Standards compliance
IEEE802.3ba
Technical specifications of the S6720-30C-EI-24S-DC
Item
Description
Memory (RAM)
2 GB
Flash
512 MB in total. To view the available flash memory size, run the display version command.
Mean time between failures (MTBF)
80.60 years (without card)
Availability
> 0.99999
Service port surge protection
NA
Power supply surge protection
Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode
Using DC power modules: ±1 kV in differential mode, ±2 kV in common mode
Dimensions (H x W x D)
Basic dimensions (excluding the parts protruding from the body): 44.4 mm x 442.0 mm x 424.7 mm (1.75 in. x 17.4 in. x 16.72 in.)
Maximum dimensions (the depth is the distance from ports on the front panel to the handle on the rear panel): 44.4 mm x 442.0 mm x 451.8 mm (1.75 in. x 17.4 in. x 17.79 in.)
Weight (with packaging)
9.8 kg (21.61 lb)
Stack ports
Any 10GE SFP+ ports (a maximum of 16 physical ports)
Any 40GE QSFP+ ports (a maximum of 6 physical ports)
RTC
Supported
RPS
Not supported
PoE
Not supported
Rated voltage range
100 V AC to 240 V AC, 50/60 Hz
-48 V DC to -60 V DC
Maximum voltage range
90 V AC to 264 V AC, 47 Hz to 63 Hz
-38.4 V DC to -72 V DC
Maximum power consumption (100% throughput, full speed of fans)
212.5 W
Typical power consumption (30% of traffic load, tested according to ATIS standard)
141 W (without card)
Operating temperature
0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)
NOTE:
When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).
Storage temperature
-40°C to +70°C (-40°F to +158°F)
Noise under normal temperature (27°C, sound power)
< 72.1 dB(A)
Relative humidity
5% to 95%, noncondensing
Operating altitude
0-5000 m (0-16404 ft.)
Certification
EMC certification
Safety certification
Manufacturing certification
Part number
02350NHU
Optical Modules Supported by Huawei S Series Switches