Arista DCS-7816-CH | 7800R3 16-Slot 32RU Modular Switch Chassis, 12 Fabric

SKU:DCS-7816-CH

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Description

The Arista 7816 chassis is an empty 16-slot, 32RU modular chassis for the 7800R3 Series of data centre switch routers. It suits large-scale spine, layer 2 and layer 3 cloud designs, VXLAN/EVPN overlays, Internet peering, secure data centre interconnect and service provider or cloud operator core and edge routing.

The chassis provides 2 supervisor slots with 1+1 redundancy, 16 line card slots and 12 fabric module slots. It scales to 460 Tbps and 96 Bpps, with up to 576 x 400G, 2304 x 100G or 4608 x 50G ports depending on the line cards fitted. Power is delivered through 24 power supply slots with a 72 kW maximum budget, and the system draws up to 39,264 W internally at 100% load, excluding optics. Airflow is front-to-rear, and AC or DC power options are available with the Extended Rack Kit.

It works with DCS-7816R3-FM fabric modules, DCS-7816-SUP or DCS-7816-SUP1S supervisors, and 7800R3 and 7800R3A line cards such as the DCS-7800R3-36P-LC, DCS-7800R3-36D-LC and DCS-7800R3-48CQ-LC. It runs Arista EOS.

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

Features

- Cell-based fabric with virtual output queuing (VOQ) for fully scheduled, lossless, non-blocking forwarding
- Deep packet buffer of up to 24 GB per line card
- Hot-swappable, redundant supervisor, power, fabric and cooling modules
- Dual-input grid redundant power supplies with configurable PSU redundancy up to N+N
- Supports 7800R3 and 7800R3A line cards in 100G, 200G and 400G, including 400G ZR/ZR+
- MACsec, IPsec and VXLANsec / TunnelSec encryption options on selected line cards
- Arista EOS with CloudVision, LANZ, ZTP, accelerated sFlow, IEEE 1588 PTP and open APIs (JSON-RPC, NETCONF)
- Supports FlexRoute, Accelerated sFlow and Algorithmic ACLs

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-7816
- Supervisor slots: 2 (1+1 redundancy)
- Line card slots: 16
- Fabric module slots: 12 (DCS-7816R3-FM required in slots 1-12)
- Power supply slots: 24, 72 kW maximum power budget
- Rack units: 32 RU
- Dimensions (H x W x D): 55.3 x 17.4 x 40 in (140.4 x 44.1 x 100.4 cm)
- Weight (chassis only): 640 lbs (291 kg)
- Weight (full system): 1580 lbs (717 kg)
- Maximum throughput: 460 Tbps / 96 Bpps
- Maximum 400G density: 576 ports
- Maximum 100G density: 2304 ports
- Maximum 50G density: 4608 ports
- Maximum power consumption: 39,264 W (40 C ambient, 100% load, excludes optics)
- Airflow direction: Front-to-rear
- Typical airflow: 1779.6 cfm (50.36 m3/min)
- Maximum airflow: 4251 cfm (120.32 m3/min)
- 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 10,000 ft (0-3,000 m)
- Latency: Under 4 microseconds (64 bytes)
- Certifications: FCC Class A, CE, UKCA, RCM, VCCI, KCC, BSMI, NRTL

FAQs

Q: Does this chassis include a licence?
A: No. This SKU is an empty chassis that runs Arista EOS and does not itself include a licence. Optional per-slot licences such as LIC-MOD-4-E (Enhanced routing) and LIC-MOD-4-V (Virtualization) are available for modular switches, and encryption features require a licence file.

Q: What power supplies does it use?
A: The chassis has 24 power supply slots and a 72 kW maximum power budget. Compatible supplies are the PWR-D1-3041-AC (3000 W, 200-240VAC), PWR-D2-3041-DC (3000 W, -48 to -60VDC) and PWR-D4-3041-AC (3000 W, 200-277VAC / 240-380VDC).

Q: Which modules does it need to operate?
A: It requires DCS-7816R3-FM fabric modules in slots 1-12 and one or two DCS-7816-SUP or DCS-7816-SUP1S supervisors. It accepts 7800R3 and 7800R3A line cards such as the DCS-7800R3-36P-LC, DCS-7800R3-36D-LC and DCS-7800R3-48CQ-LC.

Q: What port densities can it reach?
A: With the right line cards the chassis supports up to 576 x 400G, 2304 x 100G or 4608 x 50G ports, with throughput of up to 460 Tbps and 96 Bpps.

Q: Can the supervisors and power be made redundant?
A: Yes. It supports 1+1 supervisor redundancy and fabric module redundancy with graceful degradation. The dual-input grid power supplies can be configured for redundancy up to N+N.