Riverbed Cascade and VXLAN Monitoring

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Performance for Completely Virtualized IT
Extending Performance Management into SDN and VDC

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Evolution of Data Center Networking

Server Network
Traditional DC
Virtualization Virtualization
(SDN)

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Data Center Network Performance Management

Performance Management
Gap

Isolated
Network
View
Network Performance Application Performance
Management Management

 Network fault management
Software Defined
 System resource monitoring

Traditional DC  Configuration management  End user experience monitoring


SNMP MIB polling
Protocol analysis
Networking
 Transaction profiling
 App discovery, modeling, display
 Capacity planning / modeling  Analytics


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Cascade Bridges the Gap

Application-Aware Network Performance Management
The network providesathe best vantage point to monitor change
Cascade provides combination of NPM and APM capabilities:
 Service combined breadth & depth into application performance monitoring
 Best monitoring  End user experience
 Behavioral into the relationship between network, infrastructure and applications
 Visibility analytics  Transaction awareness
 Dependency mapping application troubleshooting capture & analysis
 Key starting point for  Packet


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Riverbed Cascade: Comprehensive, Intelligent, Actionable
The Total Performance Picture
• Spotlight current pain points
• Identify potential areas for improvement
• Understand application dependencies
• Accelerate troubleshooting
Monitor
Application-aware Network
Performance Management

Troubleshoot  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
Discover


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Server Software Defined
Traditional DC
Virtualization Networking


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Virtual Infrastructure – Real Blind Spots

Virtual

Physical

 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


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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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APP APP APP

OS OS OS

VDS

VMWare ESXi

Server Network
Traditional DC
(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

APP APP APP APP APP APP APP

OS OS OS OS OS OS OS

Virtualization VSwitch VSwitch VSwitch
Layer VMWare ESXi VMWare ESXi VMWare ESXi

VXLAN Overlay
Networks
Physical Network
Layer UDP Tunnel


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Overlay Networks – Foundation of the VDC

Customer
VDCs

Overlay
Networks VXLAN

Physical
Network


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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


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VXLAN Challenges – Loss of Network Visibility & Control

UDP Tunnel
 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

How to troubleshoot and monitor network performance?


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Customer Example – Test Systems Interact with Production

Problem Solution
 Test environment was spun up to  CTO top initiative = virtual data
test a new financial service center built upon SDN/VXLAN
 Isolated from production server  Network operations team is
with insufficient firewall rules pushing back – “We don’t have
 Test system performed a series of any way to manage and
actual financial transactions in troubleshoot virtual/overlay
production environment networks”
 Fire Storm ensued to track down,
isolated and undo transaction


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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 Networking
Integrated 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


Visibility Everywhere

NetFlow

BRANCH OFFICE

WAN

OPTIMIZED BRANCH VIRTUAL DATA CENTERS /
PRIVATE CLOUD

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

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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

• Improved customer service
• Spin up data centers on-demand with integrated performance
management
• Enable cloud users to monitor SLAs for their virtual data center

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


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Server
Server Network
Traditional DC
(SDN)


Riverbed Cascade and VXLAN Monitoring

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