Grandstream GWN7831 Layer 3 Aggregation Switch | 24x SFP & 4x SFP+ & 4x Combo

Grandstream GWN7831: The Ultimate Layer 3 Aggregation Switch for Enterprise Fibre Networks

The Grandstream GWN7831 is a powerful, high-performance Layer 3 aggregation switch from Grandstream's GWN7830 series, engineered to serve as the resilient backbone of medium-to-large enterprise networks. It is purpose-built for environments that demand high-density fibre connectivity, such as corporate campuses, data centres, large hospitality venues, and educational institutions.

Unmatched Fibre Connectivity and Aggregation Capacity

The GWN7831's key strength is its strategic and flexible port configuration, designed for maximum scalability and performance:

• 4 Combo Gigabit Ethernet Ports: These versatile ports can be used as standard RJ45 copper ports or as SFP slots, providing flexibility for connecting legacy devices or extending fibre runs.

• 24 Gigabit SFP Ports: This high density of SFP ports allows you to connect a large number of downstream access switches (e.g., GWN7801P, GWN7803) using affordable Gigabit SFP fibre modules over long distances without signal degradation.

• 4 10‑Gigabit SFP+ Ports: These ultra-fast 10G SFP+ ports are ideal for high‑bandwidth uplinks to the network core (e.g., GWN7816P), connecting high-performance servers, or stacking multiple switches to create a high-capacity, resilient backbone.

With a massive switching capacity of 128 Gbps and a forwarding rate of 95.232 Mpps, the GWN7831 provides non-blocking performance, ensuring that all ports can operate at their maximum rated speed simultaneously without any bottlenecks.

True Layer 3 Routing for Efficient Traffic Flow

Unlike standard Layer 2+ aggregation switches, the GWN7831 is a true Layer 3 switch. This allows it to route traffic directly between different VLANs, eliminating the need to send traffic to a separate router. It supports:

• Static routing for simple inter-VLAN routing scenarios.

• Dynamic routing protocols including RIP, OSPF, and BGP for complex, multi‑site, or highly resilient network topologies.
  This feature reduces latency, frees up core router resources, and simplifies network architecture.

High Availability, Redundancy, and Reliability

The GWN7831 is built to ensure maximum network uptime for your critical business operations.

• Stacking Support: Connect up to 16 GWN78xx series switches using their 10G SFP+ ports and manage them as a single, logical unit from one IP address. Stacking also allows for redundant links between switches, providing automatic failover if a link or unit fails.

• Redundant Power Supply (RPS): For mission-critical deployments, the GWN7831 supports an external, hot-swappable redundant power supply (sold separately), ensuring the switch remains operational even if one power supply unit fails.

• Link Aggregation: Combine up to 32 port trunks (using LACP) to increase bandwidth and provide redundant links to other switches or servers.

• Dual Firmware Images: The switch features dual flash memory and dual firmware images, allowing for safe, fail-safe upgrades and enhanced protection against corrupted firmware.

• Spanning Tree Protocols: 32 instances of STP/RSTP/MSTP/PVST+/RPVST+ prevent network loops while allowing redundant links.

• Loop Protection: Features like BPDU Guard, Root Guard, and loopback detection help prevent catastrophic network failures.

Enterprise-Grade Security & Traffic Optimisation

The GWN7831 provides a robust suite of security and traffic management tools to protect your network and optimise performance.

• Comprehensive Security: Includes port‑based authentication (802.1X, MAC auth), AAA via RADIUS/TACACS+, DHCP Snooping, Dynamic ARP Inspection (DAI) , IP Source Guard, and DoS attack prevention.

• Advanced QoS: With 8 priority queues per port and a range of scheduling algorithms (Strict Priority, WRR, WFQ, and hybrid modes), you can prioritise critical traffic like VoIP and video conferencing.

• Voice VLAN: Automatically detects IP phones and applies QoS policies for optimal voice quality.

• Multicast Optimisation: IGMP and MLD Snooping (v2/v3) ensure efficient distribution of multicast traffic (IPTV, software updates).

Free & Centralised, Cloud-Based Management

The GWN7831 is part of Grandstream’s free, unified management ecosystem, drastically simplifying IT operations:

• GDMS Networking: A free cloud platform for zero‑touch provisioning, real‑time monitoring, and bulk firmware upgrades across your entire fleet of Grandstream switches, routers, and Wi‑Fi APs.

• GWN Manager: A free, on‑premise software controller for enterprises requiring local management.

• Local Management: Intuitive web-based interface and a powerful command-line interface (CLI) for granular control.