Arista DCS-7280SRA-48C6-F | 48-Port SFP+ 10G 6x QSFP28 100G Switch Router

Arista DCS-7280SRA-48C6-F — 48×SFP+ + 6×100GbE Switch Router with AlgoMatch and Forward Airflow

Key Features at a Glance

• 48×SFP+ ports supporting 1GbE to 10GbE speeds over multimode and single-mode fiber
• 6×100GbE QSFP28 uplinks supporting 100GBASE-SR4, LR4, DR, FR, CWDM4, ZR/ZR+, and DAC/AOC — also backward compatible with 40GbE optics
• 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
• AlgoMatch hardware-accelerated policy engine: Advanced packet classification, flexible access control, and multi-action policies without TCAM capacity reduction
• Accelerated sFlow: Line-rate packet sampling and behavioral analytics at hardware speed
• 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, Accelerated 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; front-to-rear (-F) airflow
• 1RU form factor — 313W typical / 410W maximum power draw
• BrightStar Systems: Supplied fully tested, reset to factory defaults, and backed by a 1-year in-house warranty

AlgoMatch Advanced Policy Engine

• IPv4 and IPv6 access control at full scale—apply complex L3 and L4 security policies simultaneously without reducing route capacity
• Efficient L4 rule ranges—program TCP/UDP port ranges without TCAM expansion or capacity reduction
• Multi-action policies—apply multiple independent actions to a single packet or flow (drop, modify, count, mirror, police)
• User-defined packet filters—classify traffic based on arbitrary bit offsets for custom, flexible actions beyond standard ACLs
• Rich policy semantics—deploy consistent, complex policies that would exhaust classical TCAM-based resources
• Accelerated sFlow—perform line-rate packet sampling and behavioral analytics alongside policy enforcement

2.16 Tbps Non-Blocking VOQ Architecture

3.8 µs Store-and-Forward Latency

Port Configuration and Optics

• 48×SFP+ ports supporting 1GbE and 10GbE — multimode (MMF) and single-mode fiber (SMF) options
• 6×QSFP28 ports supporting 100GBASE-SR4, LR4, DR, FR, CWDM4, ZR/ZR+, and DAC/AOC — backward compatible with 40GbE optics
• 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 (all SFP+ + QSFP28 set to 10GbE), or 6×100GbE + 48×10GbE in the base configuration

• 72×10GbE (all SFP+ + QSFP28 set to 10GbE via breakout)
• 24×25GbE (via fan-out breakout modules on QSFP28)
• 12×50GbE (via fan-out breakout modules on QSFP28)
• 6×100GbE (QSFP28 ports in native mode)

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.
• Accelerated sFlow: Line-rate packet sampling and flow-level analytics with hardware offload for advanced behavior analysis.
• 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

• AlgoMatch-based ACLs: IPv4 and IPv6 access control lists at line rate, with L4 port range support and multi-action policies without TCAM limitations
• Control Plane Policing (CoPP): Rate-limiting of CPU-destined traffic to protect routing stability
• 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: 19.6 lbs (8.9 kg)
• Power: 313W typical / 410W 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 (AlgoMatch enables efficient scaling beyond traditional TCAM limits)
• ECMP: 128-way

Similar Arista Models to Consider

• DCS-7280TR-48C6-F: 48×10GBASE-T copper + 6×QSFP28, same 7280R platform with RJ45 access ports instead of SFP+
• DCS-7280SR-48C6-M-F: 48×SFP+ + 6×QSFP28 without AlgoMatch, expandable memory (M = memory upgrade slot), forward airflow
• DCS-7280CR3-32D4-F: 32×100GbE + 4×400GbE, third-generation R3 variant with enhanced scale (512-way ECMP, higher route capacity)

Related 7280 Series Resources

Summary

• Product Type: Ethernet Switch
• Manufacturer Part Number: DCS-7280SRA-48C6-F
• Power Source: Power Supply
• Limited Warranty: 1 Year
• Layer Supported: 3
• Weight (Approximate): 19.62 lb
• Form Factor: Rack-mountable
• Manufacturer: Arista Networks, Inc
• Product Model: 7280SRA-48C6
• Network Technology: 100GBase-X
• Product Series: 7280R
• Brand Name: Arista Networks
• Expansion Slot Type: QSFP100
• Height: 1.8″
• Width: 19″
• Depth: 16″
• Manageable: Yes

• 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