Arista DCS-7280SR3K-48YC8-DC-F | 7280R3K 48-Port 25G Switch, 8x 100G, DC, Front-to-Rear

SKU:DCS-7280SR3K-48YC8-DC-F

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Description

The Arista 7280R3K is a 1RU fixed data centre switch router built for leaf and spine designs, EVPN overlays, internet peering and inter-DC interconnect. It suits telco and NEBS-style environments that run on DC power, and large-scale networks that need deep buffers and big routing tables.

It provides 48 x 1/10/25G SFP ports and 8 x QSFP100 uplinks that also support 50G and 40G modes. Throughput is 2.0 Tbps (4.0 Tbps full duplex) with 1 Bpps forwarding, 4GB of packet buffer and latency from 3.8 us. As an R3K model it offers large-route scale of over 5M IPv4 routes. This SKU is the DC-powered build with front-to-rear airflow, fitted with dual hot-swap PWR-511 DC supplies (1+1) taking -48 to -60V DC, and two hot-swap fans (N+1). Typical power draw is 154 W, with a maximum of 324 W.

The SFP ports take 1/10/25G optics and the QSFP100 ports take 100G, 50G and 40G (QSFP+) optics and breakouts. It runs Arista EOS from version 4.25.1 and is managed with CloudVision.

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

Features

- Deep 4GB packet buffer with Virtual Output Queues per port to avoid head-of-line blocking
- 7280R3K large-route scale of over 5M IPv4 routes for peering and interconnect
- Wire-speed Layer 2 and Layer 3 forwarding
- Arista EOS single binary image with live software patching and Stateful Fault Repair
- JSON-RPC and NETCONF APIs, Zero Touch Provisioning, LANZ microburst detection and Accelerated sFlow
- EVPN and CloudVision support
- Redundant hot-swap DC power supplies and fans, designed for NEBS
- Flexible 100G QSFP ports supporting 25G and 50G breakout

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: 48 x SFP 1/10/25G, 8 x QSFP100
- Maximum 100G ports: 8
- Maximum 50G ports: 16
- Maximum 40G ports (using QSFP+): 8
- Maximum 25/10G ports: 80
- Maximum 1G ports: 48
- Throughput (full duplex): 2.0 (4.0) Tbps
- Packet forwarding: 1 Bpps
- Latency: from 3.8 us
- CPU: Quad-Core x86
- System memory: 64 GB
- Packet buffer memory: 4 GB
- SSD storage: 120 GB
- USB ports: 1
- Management port: 1 x 100/1000
- Serial console: 1 x RS-232 (RJ-45)
- Power supplies: 2 x hot-swap PWR-511 DC (1+1 redundant)
- DC input voltage: -48 to -60V DC
- Fans: 2 hot-swappable (N+1), front-to-rear airflow
- Typical/maximum power draw: 154 W / 324 W
- Form factor: 1RU
- Dimensions (W x H x D): 43.99 x 4.35 x 46.7 cm
- Weight: 9.18 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.25.1

FAQs

Q: What power does this model need?
A: It uses two hot-swap PWR-511 DC power supplies in a 1+1 redundant arrangement, taking -48 to -60V DC at up to 11.8A each. Typical system draw is 154 W, with a maximum of 324 W.

Q: Which airflow direction does this SKU use?
A: This is the front-to-rear airflow build, with two hot-swap fans in an N+1 arrangement. The matching spare fan modules are the FAN-7011M-F and FAN-7011M-R.

Q: What can I connect to the SFP and QSFP100 ports?
A: The SFP ports take 1/10/25G optics. The QSFP100 ports take 100G, 50G and 40G (QSFP+) optics and breakouts, subject to the capabilities of the transceiver or cable.

Q: How does the 7280R3K differ from the standard 7280R3?
A: The R3K variant adds large-route scale, supporting over 5M IPv4 routes, which suits internet peering and interconnect roles. This SKU also has DC power and front-to-rear airflow.

Q: Which software and management tools does it support?
A: It runs Arista EOS, with a minimum version of 4.25.1, and is managed with CloudVision. Its feature licensing is listed as EOS Group 2.