Arista DCS-7280SR3K-48YC8A-DC-F | 7280R3 48-Port 25G Switch, 8x 100G QSFP28, DC, Front-to-Rear

SKU:DCS-7280SR3K-48YC8A-DC-F

Stock Status: Enquire

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Description

The Arista 7280R3 Series 7280SR3K-48YC8A is a 1RU fixed data centre switch router built for leaf, spine, data centre interconnect and edge or peering roles. It suits telco and service-provider data centre edge deployments where DC power is required, and where deep buffers and large routing tables matter.

It provides 48 SFP ports running at 1/10/25G and 8 QSFP100 uplink ports supporting 100G, or 40G with QSFP+ optics. Throughput is 2.0 Tbps (4.0 Tbps full duplex) with 1 Bpps packet forwarding, latency from 3.8 us and a 4 GB packet buffer. The 'K' suffix denotes large routing scale, and the 'A' suffix denotes the eight-core x86 CPU, which is paired with 64 GB of system memory and a 120 GB SSD. This variant uses DC power supplies, rated -48 to -60 VDC, with front-to-rear airflow. Power draw is 162 W typical and 338 W maximum.

The QSFP100 ports accept 100G optics and DACs as well as 40G QSFP+ optics, and support breakout to 4x25G or 4x10G. The SFP ports take 1/10/25G modules. The switch runs Arista EOS and is managed with CloudVision.

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

Features

- Deep packet buffers with Virtual Output Queues per port to eliminate head-of-line blocking
- FlexRoute Engine for full Internet routing with IP, MPLS and VXLAN support
- Open programmable APIs (JSON-RPC, NETCONF) for provisioning and telemetry
- CloudVision, EVPN and LANZ microburst detection support
- Redundant, hot-swap power supplies and fans
- Live software patching and Stateful Fault Repair (SFR)
- Designed for NEBS environments

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
- Uplink ports: 8 x QSFP100
- Max 100G ports: 8
- 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
- Typical/Max power draw: 162 W / 338 W
- Supported power supplies: PWR-511-AC, PWR-511-DC
- DC PSU rating (PWR-511-DC): -48 to -60 VDC, 13 A
- Airflow: Front-to-rear
- Size (W x H x D): 48.3 x 4.4 x 46.7 cm (19 x 1.75 x 18.4 in)
- Weight: 9.2 kg (20.2 lbs)

FAQs

Q: What does the K in the model number mean?
A: The K suffix indicates the large-scale routing and policy licence level, giving this model a larger routing table capacity than the standard 7280R3 variants.

Q: What power supplies does this switch use?
A: This SKU uses DC power supplies. The PWR-511-DC is rated -48 to -60 VDC at 13 A, and the switch runs 1+1 hot-swap redundant supplies. Typical draw is 162 W, with a 338 W maximum.

Q: What optics can I use in the uplink ports?
A: The 8 QSFP100 ports take 100G QSFP100 optics and DACs as well as 40G QSFP+ optics. They also support breakout to 4x25G or 4x10G. The 48 SFP ports take 1/10/25G modules.

Q: What does the A in the model number mean?
A: The A suffix denotes the eight-core x86 CPU, which is paired with 64 GB of system memory and a 120 GB SSD.

Q: What airflow direction does this model have?
A: This SKU has front-to-rear airflow, as indicated by the -F suffix, so plan the cabling and rack orientation to suit.