S6720S-16X-LI-16S-AC

The Huawei S6720S-16X-LI-16S-AC is a key model within Huawei’s S6720-LI (and S6720S-LI) series of switches. These are categorized as next-generation simplified 10 Gigabit Ethernet (GE) fixed switches, primarily designed for high-performance access in campus networks and data center environments.

Here’s an introduction to its main features and capabilities:

Key Features:

• 16 x 10GE SFP+ Ports: This switch is equipped with 16 SFP+ slots, providing dedicated 10 Gigabit Ethernet connectivity. These ports are ideal for connecting high-bandwidth devices such as servers, storage systems, or as uplink/aggregation points for other access switches. They can often auto-negotiate down to GE speeds, offering flexibility.
• Built-in AC Power Supply: The “-AC” in the model name signifies that it comes with a built-in AC power supply. This makes deployment straightforward in environments with standard AC power.
• Redundant Power Supply (RPS) Support: For enhanced reliability and business continuity, the switch supports an external Redundant Power Supply (RPS), such as the Huawei RPS1800. This ensures that the switch continues to operate even if the primary built-in power supply fails.
• High Performance:
  • Switching Capacity: 1.28 Tbit/s (terabits per second). This high backplane capacity ensures non-blocking, wire-speed forwarding across all ports.
  • Packet Forwarding Rate: 240 Mpps (million packets per second). This indicates its strong capability to process a large volume of network traffic efficiently.
• Comprehensive Security Features: It incorporates a wide range of security policies to protect the network from various threats:
  • DoS, ARP, and ICMP Attack Defense: Guards against common network attacks like SYN flood, Land, Smurf, and ICMP flood.
  • DHCP Snooping: Prevents unauthorized DHCP servers and IP/MAC spoofing.
  • 802.1X and MAC Authentication: Provides strict user access control and authentication based on various user information.
  • Port Security: Limits the number of MAC addresses learned on a port to prevent MAC address table exhaustion.
• Advanced Quality of Service (QoS): The switch supports robust QoS mechanisms to prioritize critical traffic:
  • Traffic Classification: Based on various criteria like 5-tuple (source/destination IP, port, protocol), DSCP, VLAN ID, etc.
  • CAR (Committed Access Rate): Flow-based two-rate three-color CAR for bandwidth control.
  • Queue Scheduling: Supports multiple queue scheduling algorithms (WRR, DRR, PQ, WRR+PQ, DRR+PQ) to ensure the quality of voice, video, and data services.
• High Reliability: It offers various redundancy and protection mechanisms to ensure network uptime:
  • STP/RSTP/MSTP: Standard spanning tree protocols for loop prevention.
  • RRPP, Smart Link, SEP, G.8032 ERPS: Advanced Ethernet reliability technologies for fast protection switchover (millisecond-level) in ring or tree topologies, ensuring nonstop services.
  • E-trunk: Enhanced Trunk for inter-device link aggregation and load balancing.
• Flexible Management and Maintenance:
  • iStack: Huawei’s intelligent stack technology allows multiple switches to be virtualized into a single logical switch, simplifying management and increasing scalability. Any 10GE SFP+ port can be configured as a stack port.
  • Multiple Management Interfaces: Supports CLI (Command Line Interface), Web NMS (Network Management System), and SNMPv1/v2/v3.
  • Automated Deployment: Features like automatic configuration, plug-and-play, USB-based deployment, and batch remote upgrades simplify operations.
• Layer 3 Routing Capabilities: Provides essential IPv4 routing (Static, RIP, OSPF, VRRP, policy-based routing) and IPv6 routing (Static, RIPng, OSPFv3) for network segmentation and inter-VLAN routing.

Typical Applications:

• 10GE Access Layer in Campus Networks: It is commonly deployed as an access switch in enterprise and educational campus networks, providing high-bandwidth connectivity for servers, high-performance workstations, and other 10GE-enabled devices.
• Data Center Networks (Access Layer): Can serve as an access switch in data center environments, connecting high-density 10GE servers and providing efficient data flow within the data center.

The “S” in S6720S-LI (compared to S6720-LI) typically denotes a simplified version, sometimes with a slightly different feature set or target market, but in this case, the S6720S-16X-LI-16S-AC appears to be functionally very similar to the S6720-16X-LI-16S-AC model in terms of its core specifications and capabilities, often being used interchangeably in product descriptions.