Arista EOS Switch The Arista 7050S uses

The same Arista EOS software as all Arista products, simplifying network management. Arista EOS allows monitoring and management features such as Zero Touch Provisioning, VMTracer, and Linux-based tools to be used natively on the switch.

The Arista EOS is a modular switching system with a unique state sharing architecture that effectively separates the switching state from protocol programming and application logic. All EOS processes are built on a standard Linux kernel and run in their own protected and shared state via a shared repository. This multi-state architecture provides a foundation for service-based software updates and self-healing. Many Linux-based tools can be used directly on the switch running on a dual-core x86 CPU system.

Generally available
The Arista DCS 7050 series is designed to be available as a
in terms of software and hardware. Current key features of the
are:
• 1+1 hot-swap power supply
• Four N+1 hot-swap fans
• Full software suite
• Self-healing software
with State Error Correction (SFR) • Up to 16 10GbE port Network Link Group (LAG)
• Multi-chassis LAG
for active/active L2 replication • 32-way ECMP routing for load balancing and throttling

Dynamic buffer allocation:
In switch mode, the Arista 7050 transmits 10Gb packets. Latency from 800 to 1350 nanoseconds. In case of congestion, packets are sent back to a shared device buffer of 9 MBytes. Unlike other architectures with fixed device packet buffers, the 7050 uses Dynamic Buffer Allocation (DBA) to allocate up to 5 MB of packet buffers to a device. One line for performance.