7050QX Series | Platform Overview

Arista 7050QX: Latency through QSFP+ ports

Dynamic Bu er Allocation

In cut-through mode, the Arista 7050QX switches forward packets

with a latency of 550 nanoseconds to 650 nanoseconds. Upon

congestion, the packets are bu ered in shared packet memory that

has a total size of 12 MBytes. Unlike other architectures that have

xed per-port packet memory, the 7050QX Series use Dynamic Bu er

Allocation (DBA) to allocate up to 6.7MB of packet memory to a

single port for lossless forwarding. The 7050QX2-32S has an

optimized 16Mbyte bu er for more demanding environments.

Arista 7050QX 1RU Rear View:

Front to Rear (red) and Rear-to-front (blue) air ow

Arista Leaf-Spine Design with L3 ECMP

Arista Leaf-Spine Design with L2 MLAG

MLAG

Arista Leaf-Spine Two-tier Network Architecture with 7050QX Series

IEEE LACP

Scaling Data Center Performance

The Arista 7050QX series deliver line rate switching at layer 2 and layer 3 to enable faster and simpler network designs for data centers

that dramatically lowers the network capital and operational expenses. When used in conjunction with the Arista 7000 series of xed

and modular switches it allows networks to scale to over 110,000 10G servers in low-latency two-tier networks that provide predictable

and consistent application performance. The exibility of the L2 and L3 multi-path design options combined with support for open

standards provides maximum exibility, scalability and network wide virtualization. Arista EOS advanced features provide control and

visibility with single point of management.

...

2 Spine

Arista 7050X

15 Leaf

Arista 7050X

Scales to 1,680 nodes with 7050X Series

32 Spine

Arista 7508E

1

32

...

Scales to 110,592 x 10G nodes 3:1 oversubscribed

1152 Leaf

Arista 7050QX-32

1

1152

...

960Gb per rack

360Tb Spine

10G or 40G attach

!720!!

!1,680!!

!15,904!!

!,!!!!

!2,000!! !4,000!! !6,000!! !8,000!! !10,000!! !12,000!! !14,000!! !16,000!! !18,000!!

7050S!/!7050QX,32!

7050SX,128!/!7050QX,32!

7050QX,32!/!7508E!

!1,536!!

!3,072!!

!110,592!!

!+!!!!

!20,000!!

!40,000!!

!60,000!!

!80,000!!

!100,000!! !120,000!!

7050S!/!7050X!4+Way!

7050QX+32!/!7050X!8+Way!

7050QX+32!/!7508E!32+Way!

0

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64

128

256

512

1024

1280

1518

2112

9216

Packet(Size(

7050QX832(RFC(2544(Latency(

High Availability

The Arista 7050X series switches were designed for high availability

from both a software and hardware perspective. Key high

availability features include:

• 1+1 hot-swappable power supplies and four N+1 hot-swap fans

• Color coded PSU’s and fans

• Live software patching

• Self healing software with Stateful Fault Repair (SFR)

• Smart System Upgrade (SSU) and Accelerated Software Update (ASU)

• Up to 64 10GbE or 40GbE ports per link aggregation group (LAG)

• Multi-chassis LAG for active/active L2 multi-pathing

• Up to 128-way ECMP routing for load balancing and redundancy