Arista DCS-7280TR-48C6-R | 48-Port 10GBaseT 6x QSFP28 100G Switch Router

Arista DCS-7280TR-48C6-R — 48×10GBASE-T + 6×100GbE Switch Router with Rear-to-Front Airflow

Key Features at a Glance

• 48 × 10GBASE-T RJ45 copper ports supporting 100M, 1G, and 10G speeds over Category 6A cabling (up to 30 meters)
• 6 × 100GbE QSFP100 uplinks supporting breakout to 4×25GbE or 4×10GbE — up to 24 × 25G or 24 × 10G additional ports
• 2.16 Tbps non-blocking switching capacity with 720 Mpps forwarding rate
• 3.8 µs store-and-forward latency with 4 GB VOQ deep packet buffer — eliminates head-of-line blocking
• Full Layer 3 switch router: BGP, OSPF, IS-IS, MPLS (LDP, RSVP-TE, BGP LU), SR-MPLS, EVPN, VXLAN, 128-way ECMP
• 768K host routes (IPv4 and IPv6), over 1M IPv4 LPM routes, 928K IPv6 LPM routes — full Internet routing table support
• Quad-core x86 CPU with 8 GB DRAM (32 GB optional) running Arista EOS
• IEEE 1588v2 PTP hardware-assisted Precision Time Protocol for network clock synchronization
• Telemetry: LANZ, sFlow, Advanced Event Management (AEM), DANZ, streaming telemetry via gNMI and eAPI
• CloudVision integration, Zero-Touch Provisioning (ZTP), Python/Bash scripting, OpenConfig
• Hot-swappable dual PSU (1+1) and N+1 fan trays; rear-to-front (-R) airflow
• 1RU form factor — 290W typical / 405W maximum power draw
• BrightStar Systems: Supplied fully tested, reset to factory defaults, and backed by a 1-year in-house warranty

2.16 Tbps Non-Blocking VOQ Architecture

3.8 µs Store-and-Forward Latency

Port Configuration and Optics

• 48 × 10GBASE-T RJ45 (100M/1G/10G): Auto-negotiating copper ports supporting 100M, 1G, and 10G speeds. 10G operation over Category 6A UTP cabling up to 30 meters.
• 6 × 100GbE QSFP100: Support for 100GBASE-SR4, LR4, DR, FR, CWDM4, ZR/ZR+, and DAC/AOC cables. Breakout to 4×25GbE or 4×10GbE via standard breakout cables.
• Management: 1 × 100/1000 Mbps out-of-band management port + 1 × RS-232 RJ-45 console port, independent of the forwarding plane.
• Maximum port configurations: Up to 72 × 10GbE ports (48 RJ45 + 24 via QSFP100 breakout), or 6 × 100GbE + 48 × 10GbE in the base configuration.

Layer 2/3 Switch Router Capabilities

• BGP Full-Table Routing: 768K IPv4 and IPv6 host routes, over 1M IPv4 unicast LPM routes, 928K IPv6 LPM routes in the hardware FIB. Supports MP-BGP, BGP graceful restart, and 128-way ECMP for load balancing across equal-cost paths.
• MPLS: Line-rate MPLS label switching with LDP, RSVP-TE, and BGP Labeled Unicast (BGP LU) for carrier-grade MPLS networks and VPN services.
• Segment Routing: SR-MPLS for simplified traffic engineering without per-path LSP state in the network core.
• EVPN and VXLAN: VXLAN Tunnel Endpoint (VTEP) and EVPN control plane for multi-tenant overlay networks, data center interconnect, and MAC mobility.
• Routing Protocols: OSPF, OSPFv3, IS-IS, RIPv2, VRF, BFD, uRPF, VRRP, VARP, and Policy-Based Routing (PBR).
• Layer 2: 802.1w/s Spanning Tree, RPVST+, 4096 VLANs, Q-in-Q, 802.3ad LACP (64 ports/channel, 224 groups), MLAG (128 ports per MLAG), Jumbo Frames (9216 bytes), IGMP snooping.

Telemetry, Monitoring, and Analytics

• LANZ (Latency Analyzer): Per-port, real-time microburst detection and queue depth monitoring at microsecond granularity. Records egress port, queue, drop reason, and timestamp for every congestion event.
• sFlow v5: Industry-standard traffic sampling for flow analysis and capacity planning. Integrates with third-party collectors (Kentik, Splunk, Solarwinds).
• Streaming Telemetry: Real-time counter and state export via gNMI (gRPC) and Arista eAPI (REST). Supports OpenConfig data models for vendor-neutral management.
• Advanced Event Management (AEM): Programmable event-driven automation within EOS — customize alerts and actions, automate routine tasks, and respond to real-time network conditions.
• DANZ: Arista’s telemetry fabric for advanced mirroring (14 sessions), port mirroring, SPAN/TAP M:N aggregation, and L2/3/4 filtering.
• IEEE 1588v2 PTP: Hardware-assisted Precision Time Protocol for synchronized network timing, supporting Boundary Clock and Transparent Clock modes.

EOS Automation and Provisioning

• CloudVision: Centralized configuration management, network-wide change control, topology visualization, and compliance monitoring across multi-site Arista deployments.
• Zero-Touch Provisioning (ZTP): Automatic configuration download on first power-up via DHCP — no manual CLI access required for initial deployment.
• Python and Bash: Native on-box scripting with full Linux shell access for custom event handlers and automation workflows.
• eAPI (JSON-RPC): RESTful programmatic interface to all configuration and operational commands. Integrates with Ansible, Terraform, and custom orchestration.
• OpenConfig and gNMI: Vendor-neutral data models and high-performance streaming RPC for configuration and telemetry.

Security

• Control Plane Policing (CoPP): Rate-limiting of CPU-destined traffic to protect routing stability
• ACLs: Ingress/egress access control lists at L2, L3, and L4 enforced in the ASIC at line rate — up to 24K ACL entries per forwarding engine
• TACACS+ and RADIUS: Centralized authentication and accounting for administrative access
• Secure Boot: Cryptographic verification of bootloader and EOS image integrity
• MAC Security, DHCP Relay/Snooping, ARP trapping for Layer 2 security enforcement

Quality of Service (QoS)

• Up to 8 queues per port with strict priority, weighted round-robin (WRR), and weighted fair queueing (WFQ)
• 802.1p and DSCP classification and remarking
• ECN (Explicit Congestion Notification) marking for TCP-friendly congestion signaling
• PFC (Priority Flow Control) and DCBX (Data Center Bridging Exchange) for converged traffic
• Egress shaping and policing per-interface and per-queue

Physical Specifications and Airflow

• Form Factor: 1RU — 19 × 1.75 × 16 inches (48.3 × 4.4 × 40.6 cm)
• Weight: 22.2 lbs (10.1 kg)
• Power: 290W typical / 405W maximum; 500W AC or 500W DC power supplies
• Redundancy: Dual hot-swappable PSU (1+1) and 4 hot-swappable fan trays (N+1)
• Storage: 4 GB Flash, optional SSD, 2 × USB ports
• Compliance: FCC Class A, CE, RoHS, WEEE

Lifecycle and Reliability

• Self-Healing Software: EOS includes Stateful Fault Repair (SFR) for automatic recovery from software faults without data plane impact, and Stateful Fault Containment (SFC) for fault isolation.
• In-Service Software Updates: Dual-partition boot with Smart System Upgrade (SSU) and Accelerated Software Update (ASU) for planned upgrades with minimal disruption.
• Configuration Rollback: Instant rollback to previous configuration snapshots via EOS configuration replace.
• BrightStar Systems 1-Year Warranty: Supplied fully tested, reset to factory defaults, and backed by a 1-year in-house warranty.

Scalability and Table Sizes

• MAC Addresses: 768K
• IPv4 Host Routes: 768K
• IPv6 Unicast Host Routes: 768K
• IPv4 Unicast LPM Routes: Over 1M
• IPv6 Unicast LPM Routes: 928K
• Multicast Routes: Up to 768K
• ACL Entries per Forwarding Engine: 24K
• ECMP: 128-way

Similar Arista Models to Consider

• DCS-7280SRA-48C6-F: 48×SFP+ (1/10G) + 6×QSFP100 with AlgoMatch for advanced policy-based forwarding and packet classification. Same platform with SFP+ fiber access ports instead of 10GBASE-T copper.
• DCS-7280SR-48C6-M-F: 48×SFP+ (1/10G) + 6×QSFP100 with expandable memory (up to 32 GB) for large BGP routing tables. Same platform with SFP+ fiber access ports.
• DCS-7280CR3-32D4-F: 32×100G + 4×400G third-generation 7280R3 switch router with 512-way ECMP and enhanced forwarding scale for high-density spine/core deployments.

Related 7280 Series Resources

Summary

• Model: DCS-7280TR-48C6-R
• Ports: 48x 10GBASE-T, 6x 100GbE QSFP
• Throughput: High-performance switching capacity
• Airflow: Rear-to-front cooling design
• Power Supply: AC power options
• Dimensions: Standard rack-mountable
• Weight: Configuration dependent
• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Compliance: Industry standards
• Applications: Data centers, enterprise networks, cloud environments
• Traffic Management: Advanced traffic management capabilities

• 1 x Seller Refurbished DCS-7280TR-48C6# Chassis
• 2 x PWR-500AC-R Power Supplies
• 4 x FAN-7000-R Fan Trays
• 1 x KIT-4POST-NT Rail Kit
• 2 x AC Power Cords
• 1 x Console Cable

• 1-Year BrightStar warranty for end user customers
• 90-Day BrightStar Warranty for resellers

• Free FedEx Ground shipping within the United States
• FedEx Overnight shipping available as well
• FedEx International Shipping available for customers outside of the United States