Arista DCS-7280CR3K-96 | 7280R3K 96-Port 100G QSFP100 Switch Router, 16GB Buffer

SKU:DCS-7280CR3K-96

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Description

The Arista 7280R3K is a fixed 2RU data centre switch router built for internet peering, interconnect, leaf and spine, and Inter-DC designs. It runs Arista EOS and suits cloud, content delivery, service provider and carrier edge networks that need deep buffers and large routing tables.

The DCS-7280CR3K-96 provides 96 QSFP100 ports, each running 100G, with 50G, 40G, 25G or 10G available through breakout and optics. Throughput is 9.6 Tbps (19.2 Tbps full duplex) with a 4 Bpps forwarding rate and latency from 3.8 us. The 16GB packet buffer uses Virtual Output Queues per port to avoid head-of-line blocking. As a 7280R3K model it supports over 5M IPv4 routes, compared with over 2M on the non-K 7280R3. The datasheet lists EOS Feature Licenses Group 4 with a minimum of EOS 4.24.0.

Power comes from two hot-swap PWR-2411 supplies in a 1+1 arrangement, available in AC or DC, with four N+1 hot-swap fans in front-to-rear airflow. The 96 QSFP100 ports take 100G QSFP100 optics and DACs, with 40G over QSFP+ and 50G, 25G or 10G through breakout.

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

Features

- Ultra-deep 16GB packet buffer with Virtual Output Queues per port to eliminate head-of-line blocking
- Wire-speed Layer 2 and Layer 3 forwarding
- Over 5M IPv4 routes on the 7280R3K for internet peering and interconnect
- Cloud-grade routing including EVPN, LDP, RSVP-TE and SR-TE with FRR/TI-LFA
- LANZ microburst detection, Zero Touch Provisioning and accelerated sFlow
- Precision timing (PTP) and open APIs including JSON-RPC and NETCONF
- CloudVision management support
- Single binary Arista EOS image with full Linux shell access

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: 96 x QSFP100
- Max 100G ports: 96
- Max 50G ports: 192
- Max 40G ports (using QSFP+): 96
- Max 25/10G ports: 192
- Max total interfaces: 192
- Throughput (FDX): 9.6 (19.2) Tbps
- Forwarding rate: 4 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 16 GB
- CPU: quad-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Flash storage: 8 GB
- Management ports: 1 x 100/1000, 1 x RS-232 (RJ-45), 1 x USB
- Power supplies: 2 x hot-swap PWR-2411 (1+1 redundant, AC or DC)
- Fans: 4 x hot-swap FAN-7012H (N+1 redundant)
- Airflow: front to rear
- Typical/max power draw: 1003 W / 1803 W
- Size (WxHxD): 43.99 x 8.79 x 76.1 cm (2RU)
- Weight: 23.6 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
- Minimum EOS: 4.24.0, Feature Licenses Group 4

FAQs

Q: How does the 7280R3K differ from the standard 7280R3?
A: The 7280R3K variant supports larger route scale, over 5M IPv4 routes compared with over 2M on the non-K 7280R3. This suits internet peering and interconnect roles.

Q: What power supplies does it use?
A: It uses two hot-swap PWR-2411 supplies in a 1+1 redundant arrangement, available as AC or DC. The AC version takes 200-240V AC and the DC version takes -48 to -60V DC.

Q: Which optics do the QSFP100 ports take?
A: The 96 QSFP100 ports take 100G QSFP100 optics and DACs. 40G runs over QSFP+, and 50G, 25G and 10G are available through breakout.

Q: Which software does it run and is a licence required?
A: It runs Arista EOS as a single binary image. The datasheet lists EOS Feature Licenses Group 4 with a minimum of EOS 4.24.0.

Q: Which spare parts are compatible?
A: Compatible spares include FAN-7012H-RED fan modules and PWR-2411-AC-RED or PWR-2411-DC-RED power supplies. KIT-2POST, KIT-7202 and KIT-7004-2UL rack kits are also listed for 2RU chassis.