Arista DCS-7816L | 7800R 16-Slot Modular Chassis, 32RU, Empty Chassis

SKU:DCS-7816L

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Description

The Arista DCS-7816L is a 32RU, 16-line-card-slot modular chassis from the 7800R Series, built for large-scale data centre spines, layer 2/3 cloud designs, overlay networks, internet peering, secure data centre interconnect, carrier edge and core, and AI and accelerated computing clusters on the 7800R4 platform.

This SKU is the empty chassis only. It provides 16 line card slots, 2 supervisor slots with 1+1 redundancy, 6 fabric module slots and 24 power supply slots with a 72 kW maximum power budget. With 7800R3 line cards it scales to 460 Tbps and 96 Bpps system throughput and up to 576 x 400G wire-speed ports, while 7800R4 line cards allow up to 576 x 800G ports. Airflow is front-to-rear. The chassis itself needs no licence, and EOS feature licences are ordered separately.

It accepts 7800R3 and 7800R4 line cards, so one chassis can span both generations. Supervisors include DCS-7816-SUP and DCS-7816-SUP1S for 7800R3, and DCS-7816-SUP2 for 7800R4. Fabric modules are DCS-7816LR3-FM for 7800R3, and DCS-7816LR4-FM with the DCS-7816L-FCM fabric cooling module for 7800R4. Power uses 3000 W supplies such as PWR-D1-3041-AC, PWR-D2-3041-DC and PWR-D4-3041-AC.

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

Features

- Dual supervisor slots with 1+1 supervisor redundancy
- Fabric module redundancy with graceful degradation
- Dual-input, grid-redundant 3 kW power supplies with configurable redundancy up to N+N
- Front-to-rear airflow with user-serviceable fan modules
- Fully scheduled lossless VOQ architecture with deep buffers on 7800R3 line cards
- Runs Arista EOS with CloudVision, LANZ, ZTP, sFlow and JSON-RPC and NETCONF APIs
- MACsec, IPsec and VXLANsec encryption support as an EOS licensed feature
- Shared chassis across 7800R3 (100G/400G) and 7800R4 (up to 800G) line card generations

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-7816L
- Line card slots: 16
- Supervisor slots: 2 (1+1 redundancy)
- Fabric module slots: 6
- Power supply slots: 24 (72 kW maximum power budget)
- Rack units: 32 RU
- Dimensions (H x W x D): 55.6 x 17.4 x 37 in (141.3 x 44.1 x 94 cm)
- Weight (chassis only): 483 lbs (219 kg)
- Weight (full system, 7800R3): 1523 lbs (691 kg)
- Weight (full system, 7800R4): 1505 lbs (683 kg)
- Throughput (7800R3): 460 Tbps / 96 Bpps
- Maximum 400G density (7800R3): 576
- Maximum 100G density (7800R3): 2304
- Maximum 50G density (7800R3): 4608
- Maximum 800G density (7800R4): 576
- Maximum 400G density (7800R4): 1152
- Maximum power consumption (7800R3): 37,914 W
- Maximum power consumption (7800R4): 28,074 W
- Airflow: Front-to-rear
- 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 (10,000 ft)

FAQs

Q: Does the DCS-7816L chassis need a licence?
A: No, the chassis itself needs no licence. EOS feature licences such as LIC-MOD-x-Z monitoring and provisioning, LIC-MOD-x-FLX routing and encryption licences are ordered separately.

Q: Which supervisors and fabric modules work with this chassis?
A: For 7800R3, use DCS-7816-SUP or DCS-7816-SUP1S with six DCS-7816LR3-FM fabric modules. For 7800R4, use DCS-7816-SUP2 with DCS-7816LR4-FM modules in slots 1 to 5 and the DCS-7816L-FCM fabric cooling module in slot 6.

Q: What power supplies does it use?
A: It has 24 power supply slots with a 72 kW maximum power budget and uses 3000 W supplies such as PWR-D1-3041-AC, PWR-D2-3041-DC and PWR-D4-3041-AC.

Q: Can it take both 7800R3 and 7800R4 line cards?
A: Yes. The chassis supports 7800R3 line cards such as the 7800R3-36P, 7800R3-36D and 7800R3A-36D, and 7800R4 line cards such as the 7800R4-36PE.

Q: How many 400G and 800G ports can it support?
A: With 7800R3 line cards it supports up to 576 x 400G wire-speed ports. With 7800R4 line cards it supports up to 576 x 800G ports.