48 x 25Gb SFP28 Data Center Leaf/Spine Switch
$6,899.00 VAT excl.
CX308P-48Y-N-V2 — 1RU data center leaf switch with 48× 25G SFP28 + 8× 100G QSFP28, powered by the Marvell Prestera Falcon 2.0T ASIC and open SONiC-based AsterNOS.
- 48× 25G SFP28 + 8× 100G QSFP28, 2.0 Tbps wire-speed L2/L3 in a compact 1RU
- 100G uplinks break out to 4×25G / 4×10G for a smooth 25G-to-100G migration
- Open SONiC (AsterNOS) — no per-feature licensing, no vendor lock-in
- RoCEv2 + one-step Easy RoCE for lossless storage & AI/ML fabrics
- IEEE 1588v2 PTP Class C (SMPTE 2059-2 / AES67) — AVoIP & broadcast ready
- Hot-swappable 1+1 PSU / 3+1 fans, built-in Prometheus + Grafana telemetry
The Asterfusion CX308P-48Y-N-V2
is a high-density 1RU data center leaf switch that pairs 48× 25G SFP28 access ports with 8× 100G QSFP28 uplinks for 2.0 Tbps of non-blocking, wire-speed Layer 2 and Layer 3 forwarding. Built on the Marvell Prestera Falcon ASIC and running the open, SONiC-based AsterNOS, it is purpose-built as a top-of-rack (ToR) leaf node for modern spine-leaf fabrics where east-west bandwidth — not extreme latency — drives the design.
With 128K MAC entries, 288K IPv4 and 144K IPv6 prefixes, and 4096 VLANs, the CX308P-48Y-N-V2 scales cleanly from a single rack to a multi-tenant fabric. Every 100G uplink breaks out to 4×25G or 4×10G, so it connects today's 10G/25G servers while giving you a clean, investment-protected migration path to 100G.
Open NOS, full L2/L3 and a consistent operating experience
The switch runs AsterNOS, Asterfusion's enterprise distribution of open-source SONiC, with a single software binary spanning the entire CX-N-V2 family — no per-feature license tiers, no vendor lock-in. On top of it sits a complete Layer 2/Layer 3 feature set: VXLAN, EVPN Type 1–5, distributed/anycast gateway, VRF and MC-LAG for multi-tenant overlays, plus full BGP, OSPF v2/v3, IS-IS, ECMP and policy-based routing for the underlay. Operators get a consistent management experience across every box — industry-standard CLI, REST API, NETCONF, Zero-Touch Provisioning and Syslog — so the same automation and tooling carry from one switch to the whole fabric.
High-precision time synchronization
Timing is a first-class capability on the CX308P-48Y-N-V2. The switch provides IEEE 1588v2 PTP with Class C accuracy and supports the full range of industry timing profiles — G.8275.1, G.8275.2, SMPTE 2059-2 and AES67 — across flexible clock roles including GrandMaster (GM), Boundary Clock (BC) and Ordinary Clock (OC). Combined with SyncE for physical-layer frequency distribution, it delivers the deterministic, low-jitter timing that AVoIP, broadcast, financial and industrial time-sensitive networks depend on.
Comprehensive multicast and RoCEv2 transport
For one-to-many media and data distribution, the switch offers a complete multicast toolset — IGMP v1/v2/v3, IGMP Snooping, IGMP Querier, PIM-SM and multicast routing — to keep AVoIP and broadcast traffic efficient and loss-free across large fabrics. For storage and AI/ML workloads, it adds RoCEv2 with PFC, PFC Watchdog, ECN, DCBX, Fast CNP and one-step Easy RoCE configuration, so a lossless RDMA fabric can be brought up in a single command.
Built-in observability
The CX308P-48Y-N-V2 is designed to be transparent in production. A native AsterNOS Prometheus exporter streams real-time switch metrics to your monitoring stack and renders them on ready-made Grafana dashboards, while sFlow, SPAN/ERSPAN and SNMP v1/v2/v3 provide flow sampling, traffic mirroring and standards-based management. Together they give operators per-port, real-time visibility for fast troubleshooting and capacity planning.
Carrier-grade reliability
Built for always-on data centers, the switch uses hot-swappable 1+1 redundant power supplies and 3+1 (N+1) redundant, hot-swappable fans to eliminate single points of failure. Flexible AC, DC and HVDC input options and selectable front-to-rear or rear-to-front airflow let it fit cleanly into hot/cold-aisle containment and mixed power environments — making the CX308P-48Y-N-V2 a dependable open-networking foundation for cloud data centers, HPC, distributed storage and AVoIP deployments.
| Data Plane Ports (25G) | 48× 25GbE SFP28 | Data Plane Ports (100G) | 8× 100GbE QSFP28 |
|---|---|---|---|
| Switch ASIC | Marvell Falcon | Operating System | AsterNOS (Enterprise SONiC) |
| Switching Capacity | 2 Tbps | Forwarding Rate | 2,600 Mpps |
| Packet Buffer | 24 MB | MAC Address Entries | 128K |
| IPv4 Prefix Routes | 288K | IPv6 Prefix Routes | 144K |
| ARP Entries | 92K | Management Ports | 1× USB 2.0, 1× Console RJ45, 1× MGMT RJ45 |
| Control CPU | Intel Broadwell DE D-1508 | CPU Memory / Storage | 16 GB DDR4 / 128 GB SSD |
| Power Supplies | 2 (1+1 redundancy), hot-swappable | Fan Modules | 4 (3+1 redundancy), hot-swappable |
| Input Voltage | 100–240 V AC / 36–72 V DC | Max. Power Consumption | 480 W |
| Form Factor | 1 RU | Dimensions (H×W×D) | 44×440×515 mm (1.73×17.32×20.28 in) |
| Weight | 10.5 kg (23.1 lbs) | Airflow | Front to rear |
| Operating Temperature | 0–40 °C (32–104 °F) | Operating Humidity | 10%–90% (non-condensing) |
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| Interface | SFP28 |
|---|---|
| Role | TOR |
| Silicon | Falcon |
| Speed | 25G |
2.0 Tbps
2600 Mpps
288K / 144K
8 x 100GbE
SONiC
Advanced Hardware Features
Engineered for scalability, efficiency, and always-on reliability.
Redundant Power Supplies and Smart Fans
Boasting 48×25GbE SFP28 and 8×100GbE QSFP28 ports, the device supports interface splitting via breakout cables, which helps enhance the efficiency of network resource usage and accommodate diverse application scenarios.
The dual 1+1 hot-pluggable power supplies ensure continuous operation by allowing replacement without system shutdown. Equipped with 3+1 hot-pluggable fan modules, the system delivers reliable cooling performance to maintain stability and efficiency under demanding workloads.
Full RoCEv2 Support for Ultra-Low Latency & Lossless Networking
25G switches deliver full RoCEv2 support with ultra-low latency and near-zero CPU overhead. Combined with PFC and ECN for advanced congestion control, it enables a true lossless network.
HIGHLIGHT
Network Monitoring & Visualization
AsterNOS supports Node Exporter to send CPU, traffic, packet loss, latency, and RoCE congestion metrics to Prometheus. Paired with Grafana, it enables real-time, visual insight into network performance.
HIGHLIGHT
O&M in Minutes, Not Days
Automate with Easy RoCE, ZTP, Python and Ansible, SPAN / ERSPAN Monitoring & more—cutting config time, errors, and costs.