Arista DCS-7280CR3K-32D4A-R | 7280R3K 32x 100G QSFP28 Switch, 4x 400G QSFP-DD, Large Routes

SKU:DCS-7280CR3K-32D4A-R

Stock Status: Enquire

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Description

The Arista 7280R3K is a 1RU fixed data centre switch router built for large-scale layer 2 and layer 3 cloud and data centre spine and leaf designs. It also suits Internet peering, data centre interconnect, provider edge VPN services, EVPN-based telco and cloud data centres, MPLS and Segment Routing cores, and 5G and metro aggregation.

This SKU provides 32 x 100G QSFP100 ports and 4 x 400G QSFP-DD ports, with breakout options up to 48 x 100G, 96 x 50G or 96 x 25/10G interfaces. Throughput is 4.8 Tbps (9.6 Tbps full duplex) at 2 Bpps, with latency from 3.8 us and 8 GB of packet buffer. The large-route R3K forwarding profile supports over 5M IPv4 routes. An eight-core x86 CPU, 64 GB system memory and 120 GB SSD sit behind the data plane. It uses 2 x AC PWR-1011 hot-swap power supplies (1+1 redundant) and rear-to-front airflow, with typical draw of 543 W and maximum draw of 865 W.

The switch runs Arista EOS (minimum 4.27.2) and belongs to the Group 3 fixed-switch licence group. It accepts a wide range of 1G to 400G pluggable optics and cables in SFP, QSFP and QSFP-DD form factors.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Virtual Output Queues per port eliminate head-of-line blocking, backed by deep packet buffers
- FlexRoute engine for Internet-scale routing, with over 5M IPv4 routes on 7280R3K models
- Up to 384K MAC addresses and 512-way ECMP
- EVPN/VXLAN, MLAG, MPLS and Segment Routing support, with the feature set depending on licence
- PTP and SyncE timing, LANZ and DANZ monitoring, and Accelerated sFlow
- Open programmable APIs (JSON-RPC, NETCONF) and Zero Touch Provisioning
- CloudVision integration for automation and telemetry
- Hot-swappable redundant power supplies and fans, with over 94% efficient power supplies, designed for NEBS

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Ports: 32 x QSFP100, 4 x QSFP-DD
- Max 400G ports: 4
- Max 100G ports: 48
- Max 50G ports: 96
- Max 40G ports (using QSFP+): 36
- Max 25/10G ports: 96
- Max total interfaces: 96
- Throughput (FDX): 4.8 (9.6) Tbps
- Packets per second: 2 Bpps
- Latency: from 3.8 us
- CPU: eight-core x86
- System memory: 64 GB
- Packet buffer memory: 8 GB
- SSD storage: 120 GB
- USB ports: 1
- Management ports: 1 x 100/1000
- Serial ports: 1 x RS-232 (RJ-45)
- Power supplies: 2 x PWR-1011 AC, hot-swap, 1+1 redundant
- Fans: 3 x FAN-7011H, hot-swap, N+1 redundant
- Airflow: rear to front
- Rack units: 1U
- Dimensions (W x H x D): 43.99 x 4.37 x 55.83 cm
- Weight: 12.27 kg
- Typical/max power draw: 543 W / 865 W
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.27.2

FAQs

Q: What software does this switch run and does it need a licence?
A: It runs Arista EOS, minimum version 4.27.2, and belongs to the Group 3 fixed-switch licence group. Optional Group 3 licences such as LIC-FIX-3-E for Enhanced L3 (BGP, OSPF, ISIS, PIM, NAT) and LIC-FIX-3-V for VXLAN are ordered separately.

Q: What power supplies does it use?
A: It uses two hot-swap PWR-1011 AC power supplies in a 1+1 redundant arrangement. Each is 1000 W, 100-240V AC, 50/60Hz, with an IEC 60320 C14 inlet and 93% (Platinum) efficiency.

Q: What airflow direction does this SKU have?
A: This SKU is rear-to-front airflow, using three hot-swap FAN-7011H fans in an N+1 arrangement. Rear-to-front airflow carries a 35 C maximum ambient temperature, so plan rack cooling accordingly.

Q: What speeds can the ports run at?
A: The 32 QSFP100 ports support 100G, with breakout to 50G, 25G and 10G, and 40G using QSFP+. The 4 QSFP-DD ports support 400G. The switch accepts a wide range of 1G to 400G optics and cables across SFP, QSFP and QSFP-DD form factors.

Q: How does the 7280R3K differ from the standard 7280R3?
A: The R3K variant uses a large-route forwarding profile, supporting over 5M IPv4 routes through the FlexRoute engine. This suits Internet peering and large provider edge deployments.