Arista DCS-7170-32C-M-R | 7170 32-Port 100G QSFP28 Switch, Rear-to-Front, 2x AC

SKU:DCS-7170-32C-M-R

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Description

The Arista 7170 is a 1RU fixed-configuration programmable data centre switch built for dense 100GbE leaf or spine switching in large cloud and data centre networks. It runs Arista EOS and suits environments that need programmable packet processing, advanced telemetry and scale-out leaf-spine designs.

This DCS-7170-32C-M-R model provides 32 QSFP100 ports (40/100GbE) plus 2 SFP+ ports, with up to 6.4 Tbps throughput, up to 2.4 Bpps and latency from 800 ns. Each QSFP port can break out to 4x10G, 4x25G or 2x50G, reaching up to 128 x 10/25GbE or 64 x 50GbE. It carries a 20 MB packet buffer, 16 GB system memory (32 GB optional) and 30 GB flash with a 30 GB SSD. Airflow is rear-to-front, with two hot-swap AC power supplies in 1+1 redundancy and four hot-swap fans in N+1. Typical and maximum power draw is 221 W and 490 W.

The QSFP ports accept 100GBASE-SR4, SWDM4, LR4, CWDM4, PSM4, ERL4, AOC and CR4 optics and cables, as well as 40G QSFP optics. The SFP+ ports take 10GBASE optics, DAC/AOC and 1GbE SX/LX/TX modules. EOS 4.21.0F or later is required.

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

Features

- Programmable architecture allowing reconfiguration of packet parsing, lookups, traffic scheduling, packet modification and monitoring
- Hitless speed changes per QSFP port between 100GbE, 40GbE, 4x10GbE, 4x25GbE and 2x50GbE modes
- 128-way ECMP and 64-way MLAG for scale-out leaf-spine designs
- VXLAN routing, bridging and gateway capability
- Arista EOS with a single binary image, Linux shell access and bash, python, C++, Go and OpenConfig extensibility
- CloudVision, Zero Touch Provisioning, LANZ microburst detection and DANZ advanced mirroring
- 1+1 hot-swappable Platinum-efficiency power supplies and N+1 hot-swap fans
- Stateful Fault Repair and Stateful Fault Containment for resiliency

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: 32x QSFP100 (40/100GbE), 2x SFP+
- Maximum 100GbE ports: 32
- Maximum 50GbE ports: 64
- Maximum 25GbE ports: 128
- Maximum 10GbE ports: 130
- Throughput: 6.4 Tbps
- Packets per second: up to 2.4 Bpps
- Latency: from 800 ns
- CPU: multi-core x86
- System memory: 16 GB (32 GB optional)
- Flash storage: 30 GB
- SSD option: 30 GB
- Packet buffer: 20 MB
- Management port: 1x 10/100/1000
- Serial console: 1x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2x hot-swap AC, 1+1 redundant (747W AC)
- Fans: 4x hot-swap, N+1 redundant
- Airflow: rear-to-front
- Power draw (typical/max): 221 W / 490 W
- Form factor: 1RU, 19 x 1.75 x 16 inches (48.3 x 4.4 x 40.64 cm)
- Weight: 22 lbs (10 kg)
- Operating temperature: 0 to 40 C (32 to 104 F)
- Minimum EOS: 4.21.0F
- EOS feature licence group: Group 2

FAQs

Q: Does this switch need a licence?
A: It runs Arista EOS and is in EOS Feature License Group 2. Optional licences such as LIC-FIX-2-E (Enhanced L3 with BGP, OSPF, ISIS, PIM and NAT), LIC-FIX-2-V (VMTracer and VXLAN), LIC-FIX-2-Z (Monitoring and Automation) and LIC-FIX-2-FLX-L (FLX-Lite routing, EVPN, VXLAN, SR) add further features.

Q: What power supplies does it use?
A: It uses two hot-swap AC power supplies in 1+1 redundancy (PWR-747AC or PWR-745AC, 100-240 VAC, 50/60 Hz, IEC C13). Typical and maximum draw is 221 W and 490 W.

Q: Which optics and cables work with the ports?
A: The QSFP ports support 100GBASE-SR4, SWDM4, LR4, CWDM4, PSM4, ERL4, AOC and CR4, plus 40G QSFP optics and breakout to 4x10G, 4x25G or 2x50G. The SFP+ ports support 10GBASE-SR/LR/ER/ZR/DWDM, DAC/AOC and 1GbE SX/LX/TX modules.

Q: What does the M-R in the SKU mean?
A: This variant adds expandable memory and an SSD, with rear-to-front airflow and two AC power supplies. If you need replacement PSUs for rear-to-front airflow, the matching parts are PWR-745AC-R or PWR-747AC-BLUE.

Q: What EOS version does it require?
A: Arista EOS 4.21.0F or later is required.