The Huawei S6720-32C-SI-DC is a high-performance, multi-gigabit fixed switch within Huawei’s S6720-SI series. Like its AC counterpart (S6720-32C-SI-AC), it’s designed for next-generation enterprise campus networks and data centers, offering high-speed access for modern wireless access points (APs) and 10GE servers. The crucial distinction lies in its power supply: the “-DC” signifies that it operates on a Direct Current (DC) power supply.
Here’s an introduction to its key features, highlighting the DC aspect:
Key Features:
- Multi-Gigabit Base-T Ports: It features 24 x 100M/1G/2.5G/5G/10G Base-T Ethernet ports (Multi-Gigabit ports). These ports auto-negotiate speeds, making them ideal for connecting:
- High-bandwidth Wi-Fi 6/6E APs that require 2.5G, 5G, or 10G connectivity over standard copper cabling.
- High-performance workstations.
- Standard Gigabit Ethernet devices.
- 4 x 10GE SFP+ Fixed Ports: In addition to the Multi-Gigabit ports, it includes 4 x 10GE SFP+ ports. These are typically used for high-bandwidth uplinks to the aggregation or core layer of the network, or for connecting 10GE servers or storage.
- One Extended Slot: This slot provides flexibility for future expansion, allowing the addition of optional interface cards such as:
- 2-port 40GE QSFP+ interface card, for powerful 40 Gigabit uplinks.
- 4-port 10GE SFP+ interface card, for additional 10GE fiber connectivity.
- DC Power Supply: The defining characteristic: it uses Direct Current (DC) power modules. This makes it suitable for environments where DC power infrastructure is preferred or required, such as telecommunication rooms, data centers with dedicated DC power plants, or industrial settings.
- Dual Pluggable Power Supplies: It supports two pluggable power supply slots, enabling 1+1 power redundancy. This ensures high availability and continuous operation by allowing the switch to continue functioning even if one power module fails. Importantly, it can use either two DC power modules or even a mix of AC and DC power modules if the power infrastructure allows.
- High Performance:
- Switching Capacity: 2.56 Tbit/s (terabits per second). This substantial capacity ensures wire-speed, non-blocking forwarding for all its ports, efficiently handling a mix of multi-gigabit and 10GE traffic.
- Packet Forwarding Rate: 240 Mpps (million packets per second). This indicates its strong capability to process a large volume of network packets.
- Comprehensive Security Features: The switch is equipped with robust security measures to protect the network from various threats:
- Defense against Denial of Service (DoS), ARP, and ICMP flood attacks.
- DHCP snooping, IP source check, and strict ARP learning to prevent IP/MAC spoofing and related man-in-the-middle attacks.
- 802.1X authentication, centralized MAC address authentication, and portal authentication for stringent user and device access control.
- CPU defense mechanisms to protect the control plane.
- Advanced Quality of Service (QoS): It provides sophisticated QoS mechanisms to ensure the priority of critical applications:
- Traffic classification based on multiple criteria (e.g., 5-tuple, IP precedence, DSCP, VLAN ID, CoS).
- Flow-based two-rate three-color CAR (Committed Access Rate).
- Multiple queue scheduling algorithms (WRR, DRR, PQ, WRR+PQ, DRR+PQ) to guarantee the performance of delay-sensitive services like voice and video.
- High Reliability: To maximize network uptime, it supports various redundancy and protection mechanisms:
- STP/RSTP/MSTP for loop prevention.
- RRPP, Smart Link, SEP, and G.8032 ERPS for millisecond-level protection switchover in various network topologies.
- E-trunk for inter-device link aggregation and load balancing.
- BFD (Bidirectional Forwarding Detection) for rapid fault detection with routing protocols.
- Flexible Management and iStack:
- iStack Technology: Allows multiple physical switches to be virtualized into a single logical switch, simplifying management, enhancing scalability, and improving overall network resilience. Multi-Gigabit, 10GE SFP+, or 40GE QSFP+ (via extended slot) ports can be used as stack ports.
- Supports various management interfaces, including CLI, Web-based NMS, and SNMPv1/v2c/v3.
- Automated deployment features (e.g., automatic configuration, plug-and-play, USB-based deployment) and remote upgrades simplify operations.
- Layer 3 Routing Capabilities: As a “Standard Version” (SI) switch, it provides a comprehensive set of IPv4 and IPv6 routing protocols:
- IPv4: Static, RIPv1/v2, OSPF, IS-IS, BGP, ECMP, VRRP, policy-based routing.
- IPv6: Static, RIPng, OSPFv3, IS-ISv6, BGP4+, VRRP6.
Typical Applications:
- Multi-Gigabit Access for Wireless Networks: It’s an excellent choice for providing high-speed wired connectivity to modern Wi-Fi 6/6E access points that leverage 2.5G, 5G, or 10G Ethernet over copper, especially in environments with existing DC power.
- 10GE Server Access in DC Environments (DC Powered): Ideal for the access layer in data centers that utilize DC power infrastructure, connecting 10GE servers and ensuring efficient data flow.
- Campus Network Access/Aggregation Layer (DC Powered): Suitable for the access or aggregation layer in enterprise or educational campus networks where DC power is preferred or required for reliability or specific power distribution schemes.
The S6720-32C-SI-DC offers the same powerful features and port configurations as the AC version, with the primary difference being its support for DC power, making it a specialized choice for deployments requiring this power input.
Jack –
Easy management and monitoring.