Allied Telesis AT-X930-28GSTX-B91 – Layer 3 Gigabit Stackable Switch

Product Overview

The Allied Telesis AT-X930-28GSTX-B91 is an Allied Telesis x930 Layer 3 gigabit switch engineered for enterprise campus distribution and network core applications. Featuring 24 x 10/100/1000Base-T combo SFP ports and 4 x 10GbE SFP+ uplinks, this VCStack-capable switch provides the resiliency and routing depth required for high-availability distribution deployments. Long-tail keywords: Allied Telesis x930 campus distribution Layer 3 switch, stackable gigabit switch with 10G SFP+ uplinks.

Product Description

The AT-X930-28GSTX-B91 is a member of the Allied Telesis x930 Series, purpose-built for distribution layer and network core roles in enterprise and campus environments. Its 24 x 10/100/1000Base-T combo SFP ports offer hardware-level flexibility: each port operates independently as either a copper RJ-45 or fiber SFP connection, enabling the switch to serve mixed-media wiring closets without additional media converters. The 4 x 10GbE SFP+ uplink ports connect the distribution layer to core switches at 10 Gigabit speeds, supporting LACP link aggregation for bonded bandwidth and redundancy. VCStack technology allows up to eight x930 switches to form a single logical device with up to 160Gbps of stacking bandwidth per unit, creating a highly available distribution tier without spanning tree complexity. Vista Manager EX, bundled with Allied Telesis AMF, provides a graphical network management platform that visualizes and controls the entire wired and wireless network from a single pane of glass. The integrated Device GUI enables local monitoring of switch status, counters, and port states without requiring a separate management station. Allied Telesis Bidirectional Forwarding Detection (BFD) provides rapid link failure detection, and Precision Time Protocol (PTP) Transparent Mode supports time-sensitive applications. Dual hot-swappable load-sharing power supplies ensure continual service delivery during maintenance windows. Active Fiber Monitoring (AFM) continuously checks the health of fiber data and stacking links. With EPSRing, G.8032, and MRP (Media Redundancy Protocol) ring protection, the x930-28GSTX is suitable for resilient ring-based multi-building campus topologies. Order the AT-X930-28GSTX-B91 from Creation Networks, your authorized Allied Telesis reseller.

Key Features

• 24 x Combo SFP Ports (10/100/1000Base-T / SFP) — Each port independently selects copper RJ-45 or fiber SFP operation, eliminating the need for media converters in mixed-cabling environments.
• 4 x 10GbE SFP+ Uplinks — High-speed 10 Gigabit uplink ports connect the distribution switch to core infrastructure, with LACP support for bonded uplinks.
• Layer 3 Switching — Full Layer 3 routing with OSPF, BGP4, BFD, static routing, and a complete IPv6 feature set for routed distribution designs.
• VCStack (up to 8 units) — Stack up to eight x930 switches into a single logical device delivering up to 160Gbps stacking bandwidth per unit for maximum resiliency.
• VCStack Long Distance (VCStack LD) — Extends stacking over fiber links between buildings, enabling distributed campus stacks without compromising management simplicity.
• AMF & Vista Manager EX — Bundled network management tools automate zero-touch provisioning, configuration backup, and provide a graphical management interface for wired and AWC wireless devices.
• Dual Hot-Swappable Power Supplies — Load-sharing redundant power supplies support maintenance without impacting network uptime.
• EPSRing, G.8032 & MRP Ring Protection — Three ring protection protocols provide sub-50ms failover for diverse ring-based campus topologies.
• Bidirectional Forwarding Detection (BFD) — Provides rapid sub-second link failure detection to accelerate routing protocol convergence.
• Precision Time Protocol (PTP) Transparent Mode — Supports IEEE 1588 PTP for time-sensitive network applications and synchronization.
• Active Fiber Monitoring (AFM) — Continuously monitors fiber data and stacking links for faults without impacting live traffic flows.

Typical Applications

• Enterprise campus distribution layer aggregating access switches
• Network core for medium to large enterprise LAN deployments
• Multi-building campus with VCStack long-distance stacking over fiber
• Mixed copper/fiber wiring closets using combo SFP ports
• Resilient ring-based campus topologies with EPSRing and G.8032
• Time-sensitive industrial or AV networks requiring PTP transparent mode

Technical Specifications

Frequently Asked Questions

Q: Is the AT-X930-28GSTX-B91 compatible with other Allied Telesis x930 switches in a stack?

Yes. The AT-X930-28GSTX-B91 supports VCStack with up to eight x930 Series units, providing up to 160Gbps of stacking bandwidth per switch and a single logical management plane across the entire stack.

Q: How do the combo SFP ports work?

Each of the 24 combo ports operates independently as either a copper 10/100/1000Base-T RJ-45 connection or a gigabit SFP fiber connection. Only one medium can be active per port at a time — the switch automatically selects the active medium or can be configured manually.

Q: What SFP+ transceivers are compatible with the 4 uplink ports?

The 4 x SFP+ uplink ports accept standard 10GBase-SR, 10GBase-LR, and 10GBase-ER transceivers. Allied Telesis recommends Allied Telesis-branded SFP+ modules for full compatibility and technical support coverage.

Q: What routing protocols does the x930-28GSTX support?

The switch supports OSPF, BGP4, RIPv1/v2, static routing, Policy-Based Routing, and a full IPv6 routing suite. BFD is supported for rapid failure detection with dynamic routing protocols.

Q: Can the x930-28GSTX stack across buildings over fiber?

Yes. VCStack Long Distance (VCStack LD) enables stack links over extended fiber runs, making it possible to create distributed campus stacks across multiple buildings while managing them as a single device.

Q: Does the switch support wireless management?

Yes. Integrated Vista Manager mini supports visibility and management of Allied Telesis AWC wireless access points alongside wired AMF devices, making it a consolidated management solution for small to medium networks.

Q: What is the warranty on the AT-X930-28GSTX-B91?

Allied Telesis provides a limited lifetime hardware warranty on x930 Series switches. Contact Creation Networks for complete warranty and support terms.

Q: Where can I purchase the AT-X930-28GSTX-B91?

Order the AT-X930-28GSTX-B91 from Creation Networks, an authorized Allied Telesis reseller with expert pre-sales support and competitive enterprise pricing.