Riverbed Cascade and VXLAN Monitoring

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Performance for Completely Virtualized ITExtending Performance Management into SDN and VDC

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Evolution of Data Center Networking

Traditional DC Server Virtualization

Network Virtualization

(SDN)

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Data Center Network Performance Management

Traditional DC Software DefinedNetworking

Application Performance Management

System resource monitoring End user experience monitoring Transaction profiling App discovery, modeling, display Analytics

Network fault management Configuration management SNMP MIB polling Protocol analysis Capacity planning / modeling

Network Performance Management

Isolated Network

View

Performance Management Gap

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Cascade Bridges the Gap

Application-Aware Network Performance Management

Cascade provides a combination of NPM and APM capabilities: Service monitoring Behavioral analytics Dependency mapping

End user experience monitoring Transaction awareness Packet capture & analysis

The network provides the best vantage point to monitor change Best combined breadth & depth into application performance Visibility into the relationship between network, infrastructure and applications Key starting point for application troubleshooting

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Riverbed Cascade: Comprehensive, Intelligent, Actionable

Passive flow and packet collection for end-to-end visibility Application-centric performance views for business-relevance Automated performance analysis for early identification of issues Application decodes and transactions for faster diagnosis Dependency mapping of infrastructure and application relationships

• Spotlight current pain points• Identify potential areas for improvement• Understand application dependencies• Accelerate troubleshooting

The Total Performance Picture

Monitor

Troubleshoot

Discover

Application-aware Network Performance Management

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Software DefinedNetworking

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Virtual Infrastructure – Real Blind Spots

Visibility Black Hole• IT Ops/Sys admins own virtual infrastructure• Net. Ops responsible for end-to-end and vSwitch performance• Can’t see network traffic or performance between VM Servers

Physical

Virtual

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Virtual Cascade Shark: Filling the Virtualization Blackhole

Extends Cascade’s real-time visibility into virtual environments Server delay, client delay, TCP retransmits /resets…..

All data reported to Cascade Profiler Continuous or on-demand packet capture for deeper analysis via Cascade Pilot

Store packets locally or on SAN Leverages Shark packet engine

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VMWare ESXi

VDS

APP

OS

APP

OS

APP

OS


(SDN)

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SDN and the Virtual Data Center

Businesses want the promise of dynamic, on-demand cloud based IT Problem: Network and VMs layers are too intertwined

• Provisioning of networks and network services cumbersome and slow• VM and network configurations must be coordinated – shared IP address domains• Changes to shared network services have unintended consequences

Solution: Fully virtualized data center (VDC)• Completely separate VM and network configuration – isolated IP address domains• Create virtual overlay networks for each virtual data center• Virtualize all network services within a VDC

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VXLAN Overlay Networks

VMWare ESXiVSwitch

APP

OS

APP

OS

VMWare ESXiVSwitch

APP

OS

APP

OS

APP

OS

VMWare ESXiVSwitch

APP

OS

APP

OS

Virtualization Layer

Physical NetworkLayer

VXLAN OverlayNetworks

UDP Tunnel

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Overlay Networks – Foundation of the VDC

VXLAN

Physical Network

Customer VDCs

Overlay Networks

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VXLAN - The Benefits of Overlay Networks

Complete isolation network layer• Overlay networks are isolated from each other and

the physical network Massively extends VM cluster scale and flexibility

• Single domain for vMotion and administrative control Separation of Virtualization and Network layers

• Physical network has no knowledge of virtual networks• Virtual networks spun up automatically as needed for VDCs

Open standard• VMWare, Cisco, Citrix, RedHat, Broadcom…• IETF Draft: draft-mahalingam-dutt-dcops-vxlan-01

http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-01

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VXLAN Challenges – Loss of Network Visibility & Control

Total loss of visibility of overlay network – all traffic is now UDP tunneled

Virtualization layer controls all tunnel and overlay network setup/tear down

Impossible to isolate overlay traffic from physical network

Different overlay networks can have overlapping address spaces

UDP Tunnel

How to troubleshoot and monitor network performance?

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Customer Example – Test Systems Interact with Production

Problem Test environment was spun up to

test a new financial service Isolated from production server

with insufficient firewall rules Test system performed a series of

actual financial transactions in production environment

Fire Storm ensued to track down, isolated and undo transaction

Solution CTO top initiative = virtual data

center built upon SDN/VXLAN Network operations team is

pushing back – “We don’t have any way to manage and troubleshoot virtual/overlay networks”

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VMware + Riverbed – a partnership for network operations VMware - the virtualization market leader

• VXLAN virtual overlay networks key to obtaining the promise of cloud

Riverbed Cascade – leader in the aaNPM market• Performance management for today’s networks and tomorrow’s virtualized world

Software Defined NetworkingIntegrated Network Performance Management

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Riverbed & VMware – VXLAN aware IPFIX vSphere 5.1 exports VXLAN aware IPFIX

• Provides tenant traffic information (VDC flows)• Provides tunnel traffic information (VXLAN tunnel endpoints)• Exported from VDS on ESX hypervisor

New VXLAN aware IPFIX format jointly developed • Riverbed’s expertise of performance management and NetFlow paired with

VMware’s virtual network expertise

Physical network switches and router export normal NetFlow• Visibility into physical network performance• Visibility into performance of UDP tunnels across network• Does not provide visibility into tenant traffic

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Overlay Networks – The Foundation of the VDC & SDN

VXLAN

WAN

VIRTUAL DATA CENTERS /PRIVATE CLOUD

Visibility Everywhere

BRANCH OFFICE

• Unified visibility across WAN, LAN, virtualized and cloud-based data centers

NetFlow

OPTIMIZED BRANCH

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Cascade – Virtual Network Performance Management

• Embrace the virtualization of networking• Management tools to confidently move to cloud• Control and understand virtual network performance• Monitor and troubleshoot the multi-tenant environment

• End-to-End performance management • Extend aaNMP to cloud based data centers• Integrated visibility for WAN, LAN, virtual and cloud data

centers

• Improved customer service• Spin up data centers on-demand with integrated performance

management• Enable cloud users to monitor SLAs for their virtual data center

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(SDN)

Server Virtualization

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Thank You