Enterasys A4H124-24FX P0973JN

Product Name: Enterasys (Extreme Networks) A4H124-24FX P0973JN — Managed Gigabit Fiber Switch

Product Introduction:
The A4H124-24FX P0973JN is a 24-port Gigabit Ethernet managed switch from the Enterasys SecureStack A4H series. The P0973JN suffix denotes a specific product configuration/revision. It provides 24 SFP fiber ports with advanced Layer 2+ features, enterprise security, and stacking capability.

Category: Others

Description

Model Series: Enterasys SecureStack A4H Series — P0973JN configuration

Technical Specifications:

Parameter	Value
Port Configuration	24 × 1000BASE-X SFP (fiber)
Uplink Ports	2 × 10 Gigabit SFP+
Switching Capacity	88 Gbps
Forwarding Rate	65.5 Mpps
MAC Address Table	16,000 entries
VLANs	4,094 (802.1Q)
Jumbo Frame	9,216 bytes
Stack Members	Up to 8 units
Management	CLI, SNMP v1/v2c/v3, Web, SSH v2, SSL
Power	Dual hot-swappable PSU, 65W max
Dimensions (W×H×D)	440 × 44 × 236 mm
Weight	3.6 kg
Operating Temp	0°C to +45°C

Functional Features:

Layer 2+ with static IPv4 routing
802.1X with guest VLAN
RADIUS / TACACS+
Hardware ACL (L2–L4, up to 1,024 entries)
IGMP snooping v1/v2/v3
MSTP (802.1s) + RSTP (802.1w)
Link aggregation: LACP (802.3ad), up to 8 groups
QoS: 8 priority queues, WRR/SP scheduling
Storm control per port
Port mirroring: SPAN, RSPAN, ERSPAN
DHCP snooping, Dynamic ARP Inspection
IPv4 static routes (up to 64)
Syslog, NTP, SNMP traps

Performance Parameters:

Latency: 1.5 μs (store-and-forward)
Buffer: 8 MB shared
PoE: Not supported (fiber-only model)

Structural Features:

1U rack-mountable
24 SFP cage front panel with per-port LEDs (Link, Speed, Activity)
Rear: 2 × 10G SFP+, RJ-45 console, USB, dual PSU bays
Hot-swappable fan module

Working Principle:
ASIC-based cut-through/store-and-forward switching. The management CPU handles control plane (STP, routing, ACL download) while the data plane ASIC performs wire-speed forwarding. SFP modules handle optical-to-electrical conversion. 10G SFP+ uplinks provide inter-switch stacking and uplink to core.

Advantages:

Higher switching capacity (88 Gbps) vs A2H series
10G SFP+ uplinks for future-proofing
Full hardware ACL — no CPU impact
Stacking for simplified management (single IP for stack)
Robust enterprise security feature set

Applicable Industries:

Enterprise LAN / WAN edge
Data center aggregation
Campus backbone
Healthcare
Financial services

Installation Requirements:

1U rack space with 100mm front-to-back airflow
Dual PSU connected to separate circuits for redundancy
SFP modules: use Extreme Networks or compatible 1000BASE-X transceivers
Console access via RJ-45 (9600 baud default) or SSH

Usage Precautions:

P0973JN revision — verify firmware compatibility before upgrade
Do not mix A2H and A4H models in the same stack
Set up spanning tree before connecting redundant links
Enable DAI and DHCP snooping on all access ports
Maintain firmware version alignment across stack members

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