Enterasys A2H124-24FX

Product Name: Enterasys (Extreme Networks) A2H124-24FX — Managed Ethernet Switch

Product Introduction:
The A2H124-24FX is a Layer 2+ managed Ethernet switch from the Enterasys SecureStack A2H series. It features 24 Gigabit SFP fiber ports and is designed for enterprise campus and data center environments requiring high-density fiber connectivity with advanced security and management capabilities.

Category: Others

Description

Model Series: Enterasys SecureStack A2H Series

Technical Specifications:

Parameter	Value
Port Configuration	24 × 1000BASE-X SFP (fiber)
Switching Capacity	48 Gbps
Forwarding Rate	35.7 Mpps
MAC Address Table	16,000 entries
VLAN Support	4,094 active VLANs (802.1Q)
Jumbo Frame	Up to 9,216 bytes
Management	CLI, SNMP v1/v2c/v3, Web GUI, SSH, Telnet
Stacking	Up to 8 units via dedicated stacking ports
Power Supply	Dual redundant hot-swappable PSU
Power Consumption	65W (max)
Dimensions (W×H×D)	440 × 44 × 236 mm
Weight	3.1 kg
Operating Temperature	0°C to +45°C

Functional Features:

Layer 2 switching with static routing
802.1X port-based authentication
RADIUS / TACACS+ authentication
ACL-based access control (L2–L4)
Storm control (broadcast, multicast, unicast)
IGMP snooping (v1/v2/v3)
Link aggregation (LACP 802.3ad)
Spanning Tree: 802.1D, 802.1w (RSTP), 802.1s (MSTP)
Port mirroring (SPAN / RSPAN)
QoS: 8 priority queues, DSCP marking
DHCP snooping, Dynamic ARP Inspection
SSH v2, SSL/TLS encrypted management

Performance Parameters:

Latency: < 2 μs (store-and-forward)
Buffer Size: 4 MB shared packet buffer
Uplink: 2 × 10G SFP+ ports (for stacking/uplink)

Structural Features:

1U rack-mountable chassis
Front-facing SFP cages with LED port status indicators
Rear: 2 × 10G SFP+ stacking ports, console port (RJ-45), USB port
Dual PSU bays (left and right)
Fan tray (hot-swappable)

Working Principle:
The switch operates as a store-and-forward Layer 2 device. Incoming Ethernet frames are received on SFP ports, buffered, examined for MAC destination address, and forwarded out the appropriate egress port based on the MAC address table. VLAN tagging (802.1Q) allows logical segmentation. ACLs and QoS policies are applied in hardware (ASIC-based) for wire-speed performance. Management is handled via a dedicated management processor separate from the data plane.

Advantages:

All-fiber 24-port design — ideal for long-distance backbone
Enterprise-grade security (802.1X, DAI, DHCP snooping)
Stacking up to 8 units for high-density deployments
Dual redundant PSU for high availability
Hardware-based ACL and QoS — no performance degradation

Applicable Industries:

Enterprise campus networks
Data center top-of-rack (ToR)
Hospital networks
University networks
Government / defense facilities

Installation Requirements:

1U rack space with adequate airflow (front-to-back)
Minimum 100mm clearance above and below for ventilation
Use Enterprise-grade SFP modules (Extreme-compatible)
Ground the chassis to building earth ground
Dual PSU connection to separate power circuits for redundancy

Usage Precautions:

Do not exceed 45°C ambient temperature
Use only Extreme Networks-certified SFP transceivers
Enable spanning tree to prevent loops in redundant topologies
Change default admin password before deployment
Update firmware via ExtremeXOS using TFTP/HTTP

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