Arista Network 7050 Series – 10/40 GbE Data Center Switch

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Arista Networks 7050 Series Switch

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.

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Arista 7050S-64: Latency using RFC 2544 tests

Cloud Network Scale: Up to 18K 10GbE nodes using standardized protocols

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