Grandstream GWN7831 28PORT L3 SWITCH

Grandstream GWN7831 28-Port Layer 3 Managed Stackable Aggregation Network Switch with 24 x 1G SFP, 4 x 10G SFP+, 4 x Gigabit RJ45 Combo & Optional Backup Power Supply

The Grandstream GWN7831 is a 28-port Layer 3 managed and stackable aggregation switch for medium-to-large business networks requiring high-density fibre connectivity and advanced control. Twenty-four 1G SFP ports include four combo connections paired with Gigabit RJ45 ports, while four 10G SFP+ ports provide higher-bandwidth infrastructure links. A 128Gbps switching capacity, IPv4 and IPv6 routing, advanced traffic management, comprehensive security and flexible administration support scalable network deployment. An optional external 60W backup power supply provides power redundancy.

Key Features

• 24 x 1G SFP [Small Form-factor Pluggable] ports, including four combo pairs [each RJ45/SFP pair operates as one port], 4 x 10G SFP+ [Small Form-factor Pluggable Plus] ports and 1 x console port
• Aggregation switching [brings multiple network links together at a central point], with support for compatible single-mode, multi-mode or RJ45 modules, plus DAC [Direct Attach Cable] connections up to 5m through the SFP+ ports
• 128Gbps switching capacity, 64Gbps non-blocking throughput, 95.232Mpps forwarding rate, 12Mb packet buffer and network latency below 4µs
• 16K MAC [Media Access Control] addresses, 4K VLANs [Virtual Local Area Networks] and 16 VLAN virtual interfaces with a 9216-byte MTU
• IPv4 and IPv6 static and dynamic routing with RIP, RIPng, OSPF, OSPFv3, BGP, routing policies, DHCP server and DHCP relay
• Stacking [up to four switches managed as one], 32 link aggregation groups and spanning-tree support [prevents network loops]
• IGMP [Internet Group Management Protocol] and MLD [Multicast Listener Discovery] Snooping, QoS [Quality of Service] controls and up to 2K ACLs [Access Control Lists]
• 802.1X and MAC authentication, RADIUS, TACACS+, DHCP and DHCPv6 snooping, ARP inspection, IP and IPv6 Source Guard, port security and DoS protection
• Local web and command-line management, SNMP, GDMS Networking, GWN Manager and compatible GWN series router management
• Optional 12V/60W external backup PSU [Power Supply Unit], dual hardware boot, dual system-file redundancy, two temperature-controlled fans and desktop, wall or rack installation

High-Density Fibre Aggregation and Backup Power
Twenty-four 1G SFP ports support multiple fibre connections, with four paired Gigabit RJ45 connectors providing copper alternatives through the combo ports. Four 10G SFP+ ports support higher-bandwidth links, including DAC connections up to 5m. The optional 60W external backup power supply provides automatic failover if the internal power supply fails, helping to maintain network operation.

Layer 3 Routing and Stacking
Static and dynamic IPv4 and IPv6 routing supports communication between network segments, with RIP, RIPng, OSPF, OSPFv3 and BGP available for different network requirements. Up to four compatible switches can form one logical stack for unified configuration and expansion, while link aggregation increases bandwidth and provides link resilience, including across stacked switches.

Network Segmentation and Traffic Control
Port-based, 802.1Q, MAC-based, protocol-based, Private and Voice VLANs provide flexible traffic separation. QoS prioritises important applications and controls bandwidth through traffic shaping and rate limiting. IGMP and MLD Snooping conserve bandwidth by directing multicast traffic only where required, while Ethernet, IPv4 and IPv6 ACLs control permitted and restricted traffic.

Secure and Flexible Management
Authentication, DHCP and DHCPv6 snooping, ARP inspection, IP and IPv6 Source Guard, port security and DoS protection help defend against unauthorised access, address spoofing and disruptive traffic. Local web, command-line, SNMP, GDMS Networking, GWN Manager and compatible GWN router management provide flexible administration. Dual hardware boot and dual system-file redundancy support reliable operation, while power-supply, fan, CPU and memory monitoring, Ping, Traceroute, port mirroring, copper cable testing, RMON and Syslog assist fault-finding.

Key Benefits

• Brings together high-density Gigabit fibre and 10G infrastructure links
• Provides four Gigabit RJ45 alternatives through paired combo ports
• Supports optional backup power with automatic failover
• Routes IPv4 and IPv6 traffic between network segments
• Combines up to four switches into one logical stack
• Increases bandwidth and link resilience through link aggregation
• Separates, prioritises and secures business network traffic
• Supports local, cloud and on-premise management

Comms Express offers L3 and other managed switches in Grandstream Managed Network Switches, including:

• GWN7830 - 2 Gb + 6 x 1G SFP + 4 x 10G SFP+, 96Gbps
• GWN7831 - 4 Gb combo + 24 x 1G SFP + 4 x 10G SFP+, optional backup PSU
• GWN7832 - 12 x 10G SFP+, 240Gbps, optional backup PSU

Comms Express also offers:

• Grandstream Fibre Modules for compatible SFP and SFP+ connections
• SFPs & Fibre Transceivers from other leading manufacturers
• RJ45 Ethernet Cables & Patch Leads for network infrastructure and device connections
• Network Switches from other leading manufacturers

The package includes the GWN7831 switch, a 1.2m 10A AC power cable, a 25cm ground cable, a power cable clamp, four rubber footpads, two rack-mounting brackets, eight KM 3 x 6mm screws, a Simplified Quick Installation Guide and regulatory information.

*For complete specifications see the documentation tab above