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

SKU:DCS-7808-CH

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Description

The Arista DCS-7808-CH is the 8-slot, 16RU chassis for the 7800R3 Series of modular data centre switch routers. It is built for large-scale cloud and data centre spine and universal spine deployments, layer 2/3 designs, overlay networks, internet peering, secure data centre interconnect and carrier edge VPN/EVPN services.

The chassis provides 8 line card slots, 2 supervisor slots for 1+1 redundancy, 6 fabric module slots and 12 power supply slots with a 36 kW maximum power budget. System throughput reaches 230 Tbps and 48 Bpps, with maximum density of up to 288 x 400G, 1152 x 100G or 2304 x 50G ports. This SKU is the chassis only, with an AC or DC power option and an Extended Rack Kit. Supervisors, fabric modules, power supplies and line cards are selected separately. Cooling is front-to-rear and all major components are hot-swappable.

The chassis requires 6 fabric modules (DCS-7808R3-FM or DCS-7808R3-FM2) and one or two supervisors (DCS-7800-SUP1A or DCS-7800-SU1S). It accepts both 7800R3 and 7800R3A line cards, including 36-port 400G and 48-port 100G variants. 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 a fully scheduled, lossless, non-blocking architecture
- Latency under 4 microseconds (64 bytes)
- Deep packet buffers of up to 24 GB per line card
- 100G, 200G and 400G modes, 800G ready, with 400G ZR and ZR+ support
- Accepts any combination of 7800R3 and 7800R3A line cards
- FlexRoute, Accelerated sFlow and Algorithmic ACLs
- MACsec, IPsec and VXLANsec encryption on supporting line cards
- Redundant supervisor, fabric, power and cooling modules, all hot-swappable
- Runs Arista EOS with ZTP, LANZ, DANZ, PTP (IEEE 1588), sFlow and CloudVision integration

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, 8-slot modular, 16RU
- Line card slots: 8
- Supervisor slots: 2 (1+1 redundancy)
- Fabric module slots: 6 (DCS-7808R3-FM or DCS-7808R3-FM2, 6 required)
- Power supply slots: 12, 36 kW maximum power budget
- System throughput: up to 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 (excluding optics)
- Dimensions (H x W x D): 27.7 x 17.4 x 37.0 in (70.3 x 44.1 x 94 cm)
- Weight (chassis only): 222 lbs (101 kg)
- Weight (full system): 717 lbs (325 kg)
- Maximum airflow: 2358 cfm (66.73 m3/min)
- Airflow direction: 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 10,000 ft (0 to 3,000 m)

FAQs

Q: Does this chassis need a software licence?
A: The chassis runs Arista EOS. Encryption services (MACsec, IPsec and VXLANsec) are a licensed EOS feature that requires a licence file, and other EOS feature licences such as FlexRoute routing scale are ordered separately.

Q: Which modules are needed to make the chassis operational?
A: It requires 6 fabric modules (DCS-7808R3-FM or DCS-7808R3-FM2), at least one supervisor (DCS-7800-SUP1A or DCS-7800-SU1S), power supplies and one or more line cards.

Q: Which power supplies does it support?
A: The 3000 W options are PWR-D1-3041-AC (200-240 VAC), PWR-D4-3041-AC (200-277 VAC or 240-380 VDC) and PWR-D2-3041-DC (-48 to -60 VDC). There are 12 power supply slots with a 36 kW maximum power budget.

Q: Which line cards can be installed?
A: The chassis accepts both 7800R3 and 7800R3A line cards in any combination, including 36-port 400G OSFP or QSFP-DD cards and 48-port 100G cards.

Q: How does this SKU differ from the 7808 bundles?
A: DCS-7808-CH is the chassis only. Pre-configured bundles such as DCS-7808R3-BND (AC), DCS-7808R3-BND-DC and DCS-7808R3A-BND (FM2) are separate SKUs that package additional components.