The Arista 7050S-64 switch is a wire speed layer 2/3/4 switch with 48 10GbE SFP+ and 4 40GbE QSFP+ ports in a compact 1RU chassis. Each 40GbE port can also operate as four independent 10GbE ports to provide a total of 64 10GbE ports. The Arista 7050-64 offers a latency of 800 to 1200 ns in cut-through mode, and a shared 9 MB packet buffer pool is allocated dynamically to ports that are congested. With a typical power consumption of less than 2 Watt/port with twinax copper cables, and less than 3 Watt/port with SFP/QSFP lasers, the 7050S-64 provides industry leading power efficiency for the data center. An optional built-in SSD supports advanced logging, data captures and other services directly on the switch.
Additional highlights include the following:
Performance
- 48×1/10GbE SFP and 4x40GbE QSFP ports
- 1.28 terabits per second
- 960 million packets per second
- Wire speed L2 and L3 forwarding
Data Center Optimized Design
- 125W typical power draw
- 1+1 redundant & hot-swappable power
- N+1 redundant & hot-swappable fans
- Front-to-rear or rear-to-front cooling
Cloud Networking Ready
- 128K MAC entries
- TRILL support
- 16K IPv4 Routes
- 16K IPv4 Host Routes
- 8K IPv6 Routes
- 8K Multicast Groups
- 9MB Dynamic Buffer Allocation
Resilient Control Plane
- Dual-core x86 CPU
- 4GB DRAM
- 2GB Flash
- User applications can run in a VM
Built-in Storage
- Solid State Drive option
- Store logs and data captures
- Network boot nodes from the switch
- Linux tools with no limitations
Advanced Provisioning & Monitoring
- Zero Touch Provisioning (ZTP)
- VMTracer – host view
- VMTracer – auto vlans
- sFlow
- Self-configure and recover from USB
Arista Extensible Operating System
- Single binary image for all products
- Fine-grained modularity
- Stateful Fault Containment (SFC)
- Stateful Fault Repair (SFR)
- Access to Linux tools
- Extensible platform
High Availability
The Arista 7050S-64 switch was designed for high availability from both a software and hardware perspective. Key high availability features include:
- 1+1 hot-swappable power supplies
- Four N+1 hot-swappable fans
- Live software patching
- Self healing software with Stateful Fault Repair (SFR)
- Up to 16 10GbE ports per link aggregation group (LAG)
- Multi-chassis LAG for active/active L2 multipathing
- 32-way ECMP routing for load balancing and redundancy
- Arista 7050S-64: Latency using RFC 2544 tests
Dynamic Buffer Allocation
In cut-through mode, the Arista 7050S-64 forwards packets with a latency of 800 to 1200 nanoseconds. Upon congestion, the packets are buffered in shared packet memory that has a total size of 9 MB. Unlike other architectures that have fixed per port packet memory, the 7050S-64 uses Dynamic Buffer Allocation (DBA) to allocate up to 5MB of packet memory to a single port for lossless forwarding.
Cloud Network Scale: Up to 18K 10GbE nodes using standardized protocols
- Download Arista Networks 7050 Series Switch Data Sheet
- Download Arista Networks Product Quick Reference Guide
- Download Arista Networks White Paper – Architecting Low Latency Cloud Networks
- Download Arista Networks White Paper – Switching Architecture for Cloud Network Design
- Download Arista Networks White Paper – Myth About Microbursts
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