S6720-30C-EI-24S-DC

The Huawei S6720-30C-EI-24S-DC is a powerful and versatile 10 Gigabit Ethernet (GE) fixed switch, part of Huawei’s S6720-EI series. The “EI” (Enhanced Version) designation signifies that this switch offers more advanced features than the “LI” (Lite) or “SI” (Standard) versions, including richer routing capabilities, larger MAC address tables, and more robust scalability, making it suitable for larger campus networks, data centers, and metropolitan area networks (MANs).

Here’s an introduction to its key features and applications:

Key Features:

• Mixed Copper and Fiber Ports:
  • 24 x 10/100/1000Base-T Ethernet ports: These are standard Gigabit Ethernet copper ports for connecting a wide range of devices.
  • 4 x 10GE SFP+ fixed ports: These provide high-speed fiber connectivity, commonly used for uplinks to higher-layer switches or for connecting 10GE servers.
• 2 x 40GE QSFP+ Fixed Uplink Ports: These two 40 Gigabit Ethernet ports offer very high-bandwidth uplinks to the aggregation or core layer of the network. Importantly, each 40GE QSFP+ port can typically be split into four 10GE SFP+ ports using breakout cables, providing further flexibility for 10GE connectivity if needed.
• Built-in DC Power Supply: The “-DC” in the model name indicates that it comes with an integrated DC power module, making deployment straightforward in environments with standard DC power.
• Dual Pluggable Power Supplies: The switch supports two pluggable power supply slots, allowing for 1+1 power redundancy. This is a critical feature for ensuring high availability and continuous operation, as it can operate even if one power supply fails. You can typically install two DC power modules for full redundancy.
• High Performance:
  • Switching Capacity: 1.28 Tbit/s (Terabits per second). This high capacity ensures wire-speed, non-blocking forwarding across all ports, even under heavy traffic loads.
  • Packet Forwarding Rate: 240 Mpps (Million packets per second). This indicates its efficient processing of a large volume of network packets.
• Enhanced Routing Capabilities (EI Features): As an “EI” series switch, it boasts more robust Layer 3 features, including:
  • Support for a wider range of routing protocols (e.g., RIP, OSPF, IS-IS, BGP, VRRP).
  • Larger routing tables and higher forwarding performance for Layer 3 packets.
  • Support for advanced routing features like policy-based routing and ECMP (Equal-Cost Multi-Path).
• Comprehensive Security: The switch incorporates extensive security measures to protect the network from various threats:
  • DoS, ARP, and ICMP attack defense.
  • DHCP snooping, IP source guard, and strict ARP learning to prevent IP/MAC spoofing.
  • 802.1X, MAC address authentication, and portal authentication for stringent user and device access control.
  • MACsec support for secure encrypted communication between devices.
  • CPU defense mechanisms to protect the control plane.
• Advanced Quality of Service (QoS): It provides sophisticated QoS mechanisms to ensure the priority of critical services:
  • Flexible 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 numerous redundancy protocols:
  • STP/RSTP/MSTP for loop prevention.
  • RRPP, Smart Link, SEP, and G.8032 ERPS for millisecond-level protection switchover in various network topologies.
  • Enhanced Trunk (E-trunk) for inter-device link aggregation and load balancing.
  • BFD (Bidirectional Forwarding Detection) for rapid fault detection.
• Flexible Management and iStack:
  • iStack Technology: This allows multiple physical switches to be virtualized into a single logical switch, simplifying management, enhancing scalability, and improving overall network resilience. 10GE SFP+ or 40GE QSFP+ ports can be configured as stack ports.
  • Supports various management interfaces, including CLI, Web-based NMS, and SNMPv1/v2c/v3.
  • Features like automatic configuration, plug-and-play, USB-based deployment, and remote upgrades simplify operations.

Typical Applications:

• Access/Aggregation Layer in Large and Medium Campus Networks: Provides high-density Gigabit Ethernet access for end-user devices and 10GE/40GE uplinks for aggregation, supporting a large number of users and services.
• Data Center Access Switch: Can serve as a reliable and high-performance access switch for servers in data center environments, providing high-speed uplinks to the data center core.
• Enterprise Branch Offices: Suitable for deployment in enterprise branch offices requiring robust Layer 2 and Layer 3 capabilities.
• Small to Medium-sized MANs (Metropolitan Area Networks): Its enhanced Layer 3 features can support some aggregation functions in smaller MAN deployments.

The S6720-30C-EI-24S-AC is a robust and feature-rich switch, offering advanced capabilities for building scalable, secure, and highly reliable high-performance networks.