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:
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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