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PoE function
The S2700 PWR can use Power over Ethernet (PoE) power supplies with different power levels to provide -48
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V DC power for powered devices (PDs) such as IP Phones, WLAN APs, and Bluetooth APs. In its role as power
sourcing equipment (PSE), the S2700 PWR complies with IEEE 802.3af and 802.3at (PoE+), and can work with
PDs that are incompatible with 802.3af or 802.3at (POE+). Each port provides a maximum of 30 W of power,
complying with IEEE 802.3at. The PoE+ function increases the maximum power available on each port and
implements intelligent power management for high-power consumption applications. This process facilitates the
ease of PD use. PoE ports are still able to work while in power-saving mode.
High scalability
The S2700 supports intelligent stacking (iStack). Multiple S2700s can be connected with stack cables to set up
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a stack, which functions as a virtual switch. These switches can be managed using a single IP address, which
greatly reduces the costs of system expansion, operation, and maintenance.
Comprehensive QoS policies
The S2700 supports complex traffic classification based on packets' port numbers, VLAN IDs, source MAC/IP
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addresses, destination MAC/IP addresses, IP protocols, or priorities. By limiting the traffic rate based on traffic
classification results, the S2700 implements line-speed forwarding on each port to ensure high-quality voice,
video, and data services. Each port supports four queues and multiple queue scheduling algorithms, such as
WRR, SP, and WRR+SP.
Powerful surge protection capability
The S2700 uses a Huawei-patented surge protection technique to prevent lightning-induced overvoltage. All
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ports on the S2700 have 6 kV of surge protection, making them eight times more lightning-proof than 4 kV
switches. The Huawei patented surge protection technique greatly reduces the possibility of equipment being
damaged by lightning, even in extreme situations or in scenarios where grounding is not feasible.
Quiet operation, energy conservation, and low radiation
The S2700 uses an energy-saving integrated circuit design to ensure even heat dissipation. Idle ports can enter a
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sleep mode to further reduce power consumption. The S2700 generates no sound because it does not contain
any fans. Radiation produced by the S2700 is within the standard range for electric appliances and causes no
harm to the human body.
