Arista DCS-7280SR3K-48YC8A-F | 7280R3K 48-Port 25G SFP Switch, 8x 100G, Large Routes

SKU:DCS-7280SR3K-48YC8A-F

Stock Status: Enquire

Request Quote

Sale Sold out

Shipping calculated at checkout.

20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Arista 7280R3K is a 1RU fixed data centre switch router built for leaf and spine switching at 25G and 100G. It suits high-density 25G server access with 100G uplinks, as well as Internet peering, edge routing, and carrier edge or metro EVPN services. This SKU is the large routes (K) model with the eight-core CPU (A), front-to-rear airflow and two AC power supplies.

It provides 48 x 1/10/25G SFP ports and 8 x 100G QSFP100 ports, with 2.0 Tbps throughput (4.0 Tbps full duplex), 1 Bpps forwarding and latency from 3.8 us. A 4 GB packet buffer supports bursty east-west traffic. The eight-core x86 CPU is paired with 64 GB of system memory and a 120 GB SSD. Typical power draw is 162 W, with a 338 W maximum, from two hot-swap 500W PWR-511 AC supplies in a 1+1 arrangement.

The switch runs Arista EOS and falls under EOS Feature License Group 2, with a minimum of EOS 4.27.2. QSFP100 ports can run at 40G or break out to 50G, 25G or 10G depending on the transceiver and cable used. It is managed through CloudVision.

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

Features

- Wire-speed L2 and L3 forwarding with deep packet buffers and Virtual Output Queues per port to avoid head-of-line blocking
- FlexRoute engine for Internet-scale routing, with over 5M IPv4 routes on 7280R3K models
- EVPN/VXLAN overlay support
- Cloud-grade routing including secure Internet peering, carrier edge VPN services, LDP/RSVP-TE/SR-TE, FRR and TI-LFA
- Precision timing via PTP (IEEE 1588) and SyncE
- LANZ microburst detection, Zero Touch Provisioning and CloudVision integration
- Open programmable APIs (JSON-RPC, NETCONF) and full Linux shell access through Arista EOS
- Redundant hot-swap power supplies and fans, with power supplies over 94% efficient

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Ports: 48 x SFP 1/10/25G, 8 x QSFP100
- Max 100G ports: 8
- Max 50G ports: 16
- Max 40G ports (using QSFP+): 8
- Max 25/10G ports: 80
- Max 1G ports: 48
- Throughput (FDX): 2.0 (4.0) Tbps
- Packets per second: 1 Bpps
- Latency: From 3.8 us
- CPU: Eight-core x86
- System memory: 64 GB
- Packet buffer memory: 4 GB
- SSD storage: 120 GB
- USB ports: 1
- Management ports: 1 x 100/1000
- Serial ports: 1 x RS-232 (RJ-45)
- Hot-swap power supplies: 2 x PWR-511 500W AC (1+1 redundant)
- Hot-swappable fans: 2 (N+1 redundant), FAN-7011M
- Airflow direction: Front to rear
- Rack units: 1 U
- Dimensions (W x H x D): 43.99 x 4.35 x 46.7 cm
- Typical / maximum power draw: 162 W / 338 W
- Weight: 9.18 kg
- Operating temperature: 0 to 40 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 3,000 m
- EOS feature licence group: Group 2
- Minimum EOS: 4.27.2

FAQs

Q: What does the K and A in 7280SR3K-48YC8A mean?
A: The K indicates the large route scale variant, with over 5M IPv4 routes. The A indicates the eight-core x86 CPU.

Q: Which licences does this switch use?
A: It runs Arista EOS and falls under EOS Feature License Group 2. Optional Group 2 licences include LIC-FIX-2-E (Enhanced L3), LIC-FIX-2-V (Virtualization), LIC-FIX-2-V2 (Extensions, Security and Partner Integration), LIC-FIX-2-Z (Monitoring and Automation) and LIC-FIX-2-FLX-L (FLX-Lite routing). The minimum EOS release is 4.27.2.

Q: What power supplies does this SKU use?
A: It uses two hot-swap PWR-511 500W AC supplies in a 1+1 redundant arrangement, taking 100-240V AC at 50/60Hz. The DC version of the PWR-511 is a separate part.

Q: Can the 100G QSFP ports run at lower speeds?
A: Yes. The QSFP100 ports can run at 40G using QSFP+ or break out to 50G, 25G or 10G, subject to transceiver and cable support.

Q: What airflow direction does this model have?
A: This SKU is front-to-rear airflow. Rear-to-front airflow is available as the -R variant.