Technical Forum

Hardware and Software Update

Autumn 2015

Technical Forum

New Operational Features

§ Bug Portal• Per release, searchable bug database

• https://www.arista.com/en/support/software-bug-portal

§ EOS 4.15.2F Transfer Of Information (TOI)• Available on EOS Central – eos.arista.com/toi

§ Notify By Email• Software advisories, new EOS versions, End-of-Life Announcements

Technical Forum

Cloud Servers & Storage Driving 25GbE and 50GbE Adoption

§ Maximize switch and server throughput and efficiency

§ Minimize capex – fewer switch ports and cables

§ Minimize opex – lower power and cooling

§ Minimize cost per bit by utilizing highest speed available

PCIe-Gen12Gb/s

4x = 10GbE

PCIe-Gen24Gb/s

8x = 40GbE

PCIe-Gen38Gb/s

8x = 50GbE

Evolution of PCI Express Technology

PCIe Gen3 drives 25G and 50G

Technical Forum

Interface Parallelism

§ Parallelism increases the effective speed of an interface§ Each interface uses multiple lanes/lasers• Bit Stripping ensures maximum efficiency

• Increased failure domain

§ Multiplicative CapEX Cost

10G 40G

Technical Forum

Evolution of the Network Leaf

64 lanes1.28Tbps

1/10GbE

2011- 7050 Series

128 lanes2.56Tbps

10/40GbE

2013 - 7050X Series

128 lanes6.4Tbps

25/40/100GbE

2015 - 7060X Series

Technical Forum

25G & 50G Ethernet Founding Member

Standardizing on 25GbE

§ Faster clock rate increases the effective speed of an interface

§ Each interface uses a single lane/lasers

10G 25G 50G

Technical Forum

Single lanes maximize usable

connectivity

Single lane 25Gb/s I/O maximizes port

count and total bandwidth

Switch Chip limited by number of I/O

Pins

Switch Chip ports can run from

10Gb/s to 25Gb/s

Switch Chip I/O is Limited

Port Speed Lane Speed (Gb/s)

Lanes / Port

UsablePorts

Total BW

10GbE 10 1 128 1280

25GbE 25 1 128 3200

40GbE 10 4 32 1280

50GbE 25 2 64 3200

100GbE 25 4 32 3200

Technical Forum

Compute

Advantages of Migrating to 25GbE, 50GbE and 100GbE

§ 25GbE uses same copper or fiber as 10GbE

§ No changes to cable plant

§ 50GbE uses half the lanes compared to 40GbE

§ 2X more nodes per switch

§ 2.5X performance increase for every link

§ Better load distribution and lower latency

10GbE to 25GbE 40GbE to 50GbE 40GbE to 100GbE

2.5XHigher Server Bandwidth

100%More Storage

Nodes

2.5X Higher Network

Capacity

Storage Leaf - Spine

Technical Forum

Fixed Configuration Leaf and Spine Enhancements

64x100G7260CX-64

IP Storage128 x 50G256 x 25G

Q4’15

32x100G7060CX-32S

100GbEFlexible 25G/50G/100G

Now

64x40G7260QX-64

40G SpineLower PowerLower Latency

Now

First products with 25G/50G Support

Technical Forum

50Tbps / 38Bpps Switching256 Ports 100G Line Rate

25G and 50G Support

Extending the Arista 7300X

Arista7300XBroadDeployment

Arista 7320XCloud Optimized

Flexible Port Configurations

Scalable Throughput

Scalable Packet Processing

Low Latency Single Stage Fabric

Power Efficient

High Availability

Advanced Monitoring and Provisioning

512 40G-QSFP ports40Tbps / 30Bpps

100G Uplinks

New

Introducing the Arista 7320X

Technical Forum

§ QSFP100 enables multiple speed choices

§ 1x100GbE or 40GbE, 4 x 10GbE or 25GbE and 2 x 50GbE

QSFP100 Ports – Multi-speed combinations

10G/25G Mode

Ethernet 1/1Ethernet 1/2Ethernet 1/3Ethernet 1/4

50G Mode

Ethernet 1/1Ethernet 1/3

40G/100G Mode

Ethernet 1/1

QSFP100 Interface Configuration Options

Technical Forum

Hitless Software Upgrades Sub Second EOS Upgrades with SSU

Flexible L2 and L3 Scale

Dynamic Hitless Speed Change

Flexible Server & Uplink Ports

Buffer Monitoring

Unified ForwardingTable with 5 flexible modes

Eliminate downtime in configuring speed changes

10G to 100G on a single QSFP100 interface

Latency Analyzer with configurable thresholds

CloudVision Workload Orchestration and Workflow Automation

EOS Advantages

Technical Forum

All Software is Not Equal – Dynamic Hitless Speed Change

Arista(config)#show interfaces et29/1 statusPort Name Status Vlan Duplex Speed Et29/1 disabled 1 full 40G

Arista(config)#interface et29/1Arista(config-if-Et29/1)#no speed forced 40gfullArista(config-if-Et29/1)#show interfaces et29/1-4 statusPort Name Status Vlan Duplex Speed Et29/1 disabled 1 full 10G Et29/2 disabled 1 full 10G Et29/3 disabled 1 full 10G Et29/4 disabled 1 full 10G

Only EOS has Dynamic Hitless Speed Change

Technical Forum

EOS - Hardened for Cosmic Radiation

§ All products tested under Neutron beam

§ Parity errors detected and corrected

§ No grey failures (black-holing of traffic)

§ EOS does not rely on Broadcom SDK

§ Highest Resiliency in Cloud Deployments

§ Problem will only get worse with 28 &16 nm

Technical Forum

Smart System Upgrade Leaf – Hitless Upgrade

SSU Hitless Upgrade§ Designed to provide simple, low risk upgrade options, for fixed configuration systems and single connected servers

§ Key feature for critical applications where maintenance windows are impossible to schedule

§ During reload, Data Plane remains fully operational and acts as a proxy for Control Plane

§ Traffic loss during an SSU Hitless Upgrade is unnoticeable to applications

5+ Minutes

ApplicationLoss Report

200ms

ApplicationLoss Report

Existing Approaches SSU Hitless Upgrade

✓✗

Technical Forum

Smart System Upgrade – Maintenance Mode

SSU MAINTENANCE MODE§ Leverages a network centric approach to upgrades

§ Simple, standards based, low risk upgrades in highly redundant networks

§ Remove device from data-path before starting operations to remove risk§ ECMP approach hides this removal from applications

Graceful RemovalPre-Upgrade Seamless Insertion

Technical Forum

Automation and Visibility across the Universal Cloud Network

CloudVision – 100GbE, 50GbE and 25GbE

7010T 7050X 7150S 7060X 7280E

7500E 7320X

Comprehensive FeaturesSpine/Leaf

Cloud Ready, VXLAN, Programmable, Open, SDN

Investment ProtectionCommon EOS Binary

Power EfficientLow Latency, Wire speed

7048T

Workload Orchestration

WorkflowAutomation

Technical Forum

Thank You