Arista DCS-7135V-48Y-4QC-F | 7135V 48-Port 25G Switch, 4x 100G QSFP28, 2xAC, F-R Air

SKU:DCS-7135V-48Y-4QC-F

Stock Status: Enquire

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Description

The Arista 7135V is a 1RU Layer 1+ FPGA-enabled switch built for ultra-low-latency trading and exchange networks. It pairs an AMD Versal HBM Series FPGA with a Layer 1 crosspoint matrix between the FPGA and the front-panel ports, making it suited to exchanges, HFT firms and colo deployments that need deterministic, low-jitter forwarding.

This SKU provides 48 SFP28 ports and 4 QSFP28 ports. Layer 1 latency starts at 5 ns, with L1 replication at 6 ns, and Layer 1 throughput runs from 1 to 25.8 Gbps per lane with bit-for-bit forwarding for any protocol. The FPGA has 16GB of HBM DRAM and runs Arista applications such as MetaWatch, MetaMux, MultiAccess and SwitchApp, or customer-developed applications using the FPGA Development Kit. An 8-core x86 CPU with 32 GB of system DRAM and a 240 GB SSD handles EOS. This variant has front-to-rear airflow and two hot-swap AC power supplies in a 1+1 redundant arrangement, with a typical draw of 500W and a maximum of 615W.

The QSFP28 ports accept QSFP optics and cables at 100GE, 4x25GE, 40GE and 4x10GE, and the SFP28 ports accept SFP optics and cables at 25GE and 10GE. Arista E-Series low-latency optics such as QSFP-100G-SR4-E, SFP-25G-SR-E and SFP-25G-LR-E run without FEC. The switch requires EOS 4.36.0F or later and integrates with Arista CloudVision.

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

Features

- Layer 1+ functions including signal regeneration, media conversion, port mirroring, telemetry and dynamic patching
- Bit-for-bit L1 forwarding for any protocol at 1-25Gbps per port
- Deterministic ultra-low latency with less than 100 ps jitter
- Non-blocking design with the same latency for 1:N port mirroring
- Dual redundant hot-swappable power supplies and N+1 fans
- Streaming telemetry and full SFP28 interface diagnostics for light levels, temperature and voltage
- Linux-based EOS with industry-standard CLI and JSON RPC API
- Integrated FPGA runs Arista applications or customer-developed custom applications
- Flexible time synchronisation with PPS in/out and an OCXO clock

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

- Front-panel ports: 48x SFP28, 4x QSFP28
- Layer 1 throughput: 1-25.8 Gbps per lane
- Layer 1 latency: from 5 ns (L1 replication at 6 ns)
- FPGA: 1x AMD Versal HBM Series VH1542
- FPGA DRAM: 16GB HBM DRAM
- FPGA Development Kit (FDK): Yes
- Clock: OCXO
- CPU: 8-core x86
- System DRAM / SSD: 32 GB / 240 GB
- RS-232 serial ports: 1 (RJ-45)
- USB ports: 1
- 100/1000 management ports: 1
- Internal CPU interfaces: 2x 25G + 2x 10G
- PPS input ports: 1 (5V TTL, 50 ohm or Hi-Z)
- PPS output ports: 1 (5V TTL)
- Hot-swap power supplies: 2 (1+1 redundant), PWR-1011-AC
- Hot-swappable fans: 3 (N+1 redundant), FAN-7011M
- Airflow: Front-to-rear
- Typical/max power draw: 500W/615W
- Rack units: 1 U
- Size (WxHxD): 44.0 x 4.4 x 56.9 cm (17.3 x 1.7 x 22.4 in)
- Weight: 11.9 kg (26.2 lbs)
- Operating temperature: 0 to 40 C (front-to-rear airflow)
- Relative humidity: 10% to 85% non-condensing
- Minimum EOS: 4.36.0F
- EOS feature licences: Group 3

FAQs

Q: What EOS licensing does the 7135V use?
A: It runs Arista EOS, with EOS feature licences listed as Group 3 and a minimum EOS release of 4.36.0F.

Q: What power supplies does this SKU use?
A: It uses two PWR-1011-AC hot-swap supplies in a 1+1 redundant arrangement. Each is 1000W output with 110-240V AC input and an IEC 320-C13 connector.

Q: Which optics and cables work with the ports?
A: The QSFP28 ports take QSFP optics and cables at 100GE, 4x25GE, 40GE and 4x10GE. The SFP28 ports take SFP optics and cables at 25GE and 10GE. Arista E-Series low-latency optics such as QSFP-100G-SR4-E, SFP-25G-SR-E and SFP-25G-LR-E run without FEC.

Q: How does this SKU differ from other 7135V variants?
A: The -F suffix denotes front-to-rear airflow with two AC power supplies. It uses the FAN-7011M-F fan tray for that airflow direction.

Q: Can I run my own applications on the FPGA?
A: Yes. The integrated AMD Versal FPGA runs Arista applications or customer-developed custom applications, and the FPGA Development Kit is available for custom development.