Arista DCS-7808 | 7800R3 8-Slot Modular Chassis Switch, 16RU, Chassis Only

SKU:DCS-7808

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Description

The DCS-7808 is the 8-slot, 16RU chassis of the Arista 7800R3 Series, a modular data centre switch router family. It suits large-scale layer 2 and layer 3 cloud data centres, overlay networks, virtualised or traditional enterprise data centre networks, internet peering, secure data centre interconnect and carrier edge or core services.

The chassis provides 8 line card slots, 2 supervisor slots with 1+1 redundancy and 6 fabric module slots, with 6 fabric modules required per chassis. It scales to 230 Tbps and 48 Bpps of throughput, and supports up to 288 x 400G, 1152 x 100G or 2304 x 50G ports depending on line card breakout. It has 12 power supply slots for a 36 kW maximum power budget, and maximum system power consumption is 19,698 W excluding optics. Airflow is front-to-rear and the chassis weighs 101 kg without modules. This SKU is the chassis only, so PSUs, fabric modules, supervisors and line cards are selected separately.

It works with 7800R3 and 7800R series line cards, with OSFP, QSFP-DD and QSFP100 optics. Fabric modules are DCS-7808R3-FM or DCS-7808R3-FM2, supervisors are DCS-7800-SUP, SUP1A or SUP1S, and power supplies are PWR-D1-3041-AC, PWR-D2-3041-DC or PWR-D4-3041-AC. The chassis runs Arista EOS.

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

Features

- Fully scheduled lossless architecture with cell-spraying fabric and per-port Virtual Output Queuing
- Under 4 microsecond latency (64 bytes)
- Deep packet buffer up to 24 GB per line card
- 100G, 200G and 400G modes, 800G ready, with 400G ZR/ZR+ support
- Dual-input grid-redundant power supplies with configurable PSU redundancy up to N+N
- 1+1 supervisor redundancy and fabric module redundancy with graceful degradation
- MACsec, IPsec and VXLANsec encryption, with TunnelSec on supported line cards
- Arista EOS with CloudVision, LANZ microburst detection, ZTP, sFlow, IEEE 1588 PTP and JSON-RPC/NETCONF programmable APIs
- Compatible with both 7800R3 and 7800R line cards, allowing migration to higher density and performance

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

- Chassis: DCS-7808
- Line card slots: 8
- Supervisor slots: 2 (1+1 redundancy)
- Fabric module slots: 6 (6 required per chassis)
- Power supply slots: 12 (36 kW max power budget)
- Rack units: 16 RU
- Airflow: front-to-rear
- Maximum throughput: 230 Tbps / 48 Bpps
- Maximum 400G density: 288 ports
- Maximum 100G density: 1152 ports
- Maximum 50G density: 2304 ports
- Maximum power consumption: 19,698 W (40 C ambient, 100% port load, excludes optics)
- Dimensions (H x W x D): 70.3 x 44.1 x 94 cm (27.7 x 17.4 x 37.0 in)
- Weight (chassis only): 101 kg (222 lbs)
- Weight (full system): 325 kg (717 lbs)
- Maximum airflow: 66.73 m3/min (2358 cfm)
- Operating temperature: 0 to 40 C (32 to 104 F)
- Storage temperature: -40 to 70 C (-40 to 158 F)
- Relative humidity: 5 to 90%
- Operating altitude: 0 to 3,000 m (0 to 10,000 ft)
- Supervisor CPU (DCS-7800-SUP1A): 2.0 GHz eight-core x86 64-bit, 64 GB DRAM, 4 GB flash

FAQs

Q: Does the DCS-7808 chassis need a licence?
A: The chassis runs Arista EOS. Encryption services such as TunnelSec, MACsec and IPsec are licensed EOS features that require a licence file.

Q: Which power supplies does the DCS-7808 take?
A: It takes up to 12 x 3000W power supplies for a 36 kW maximum budget. Supported models are PWR-D1-3041-AC (200-240VAC), PWR-D2-3041-DC (-48 to -60VDC) and PWR-D4-3041-AC (200-277VAC or 240-380VDC).

Q: What else do I need to make the chassis operational?
A: You need 6 fabric modules (DCS-7808R3-FM or DCS-7808R3-FM2), at least one supervisor (DCS-7800-SUP, SUP1A or SUP1S), power supplies and line cards.

Q: Which line cards and optics work with this chassis?
A: It accepts 7800R3 line cards such as the 7800R3-36P, 36D, 36DM, 7800R3A-36D, 36DM, 7800R3-48CQ2 and 48CQM2, as well as 7800R series line cards. These support OSFP, QSFP-DD and QSFP100 optics.

Q: How does this SKU differ from the DCS-7808R3-BND bundles?
A: The DCS-7808 is the chassis only, with no PSUs, fabric modules, supervisors or line cards. The DCS-7808R3-BND variants bundle the chassis with PSUs, fabric modules and a supervisor.