CX308P-48Y-M-H, 48x 25Gb SFP28, 8x 100Gb QSFP28, L3 Core Switch

Enterprise SONiC, full L2/L3 and open management

The switch ships preloaded with AsterNOS, Enterprise SONiC distribution, with a single software image across the CX-M-H family. On top of it sits a complete Layer 2/Layer 3 feature set — VXLAN, BGP-EVPN, GRE/static GRE tunnels, static routing, VRF, OSPFv2/v3, BGP, MP-BGP and MLAG — for multi-tenant overlays and dynamic route management at the network core. Automation interfaces include ZTP, RESTful APIs, NETCONF/YANG and gNMI, so the switch plugs into existing infrastructure-as-code pipelines without a separate management workflow.

High availability at the core

AsterNOS adds EVPN Multihoming for all-active redundancy to downstream switches without dedicated peer links, improving load balancing and simplifying multi-vendor deployments at the aggregation boundary. An optional MPLS module extends the switch with label-switched path management and MPLS-based redundancy for topologies where the core must stay reachable through multiple failure scenarios.

Optional precision timing

Timing-sensitive deployments can add the optional PTP extension card. The hardware port supports PTP as a Boundary Clock (BC) or Transparent Clock (TC), with IEEE 1588v2 and SMPTE 2059-2 support and PTP Class C accuracy (≤10ns maximum time error) — relevant where the core switch also needs to distribute a common clock reference, such as financial infrastructure or broadcast networks.

Operations and traffic visibility

The switch integrates sFlow and Telemetry for continuous KPI export, with ZTP cutting deployment time and manual intervention across the core layer. An optional Network Packet Broker container, built on SONiC's containerized architecture, adds traffic mirroring, filtering, aggregation, preprocessing, load balancing and output replication without a separate appliance — useful for monitoring traffic that converges at the core.

Centralized management with Asteria Network Controller

The CX308P-48Y-M-H is managed by the Asteria Network Controller, Asterfusion's unified platform for the CX-M switch family alongside APs, routers, and PON sticks. Zero-Touch Provisioning brings new switches online without manual CLI configuration. The controller provides topology discovery, device status monitoring and scripted configuration or firmware updates across multiple switches from a single interface. On-premises deployment is available with no licensing fee.

Enterprise-grade reliability

The CX308P-48Y-M-H uses hot-swappable 1+1 redundant power supplies and 3+1 (N+1) redundant, hot-swappable fans to eliminate single points of failure. Front-to-rear / Rear-to-front airflow and 100–240V AC / 36-72V DC input suit rack-mount campus deployments — making the CX308P-48Y-M-H a dependable foundation for campus, enterprise and data center core networks.

Architecture & performance

• 9th-generation, 16nm Marvell Prestera Falcon — 2.0 Tbps to 12.8 Tbps wire-speed switching across the 98CX85xx family
• Large shared tables: 128K MAC, 288K IPv4 / 144K IPv6 prefixes, high-scale multi-tenant L2/L3
• Globally shared packet buffer with dynamic thresholds for microburst (µBurst) absorption
• Cut-through switching and dynamic load balancing (DLB) across the fabric

Virtualization & overlays

• eBridge unified virtualization architecture with hardware-based interface/domain virtualization
• Programmable header editor: hardware-accelerated VXLAN, VXLAN-GPE, Geneve and NSH
• MPLS and IPv6 segment routing for flexible transport

RDMA, telemetry & openness

• RoCEv2-aware congestion management for lossless RDMA storage and AI/ML traffic
• In-band network telemetry built into the data path — sFlow, IPFIX, remote port analysis
• Open Switch Abstraction Interface (SAI) + Telemetry & Monitoring (TAM) APIs — merchant-silicon foundation for SONiC/AsterNOS