SIX

Overcoming common challenges

BEST PRACTICES FOR IMPLEMENTING

NETWORK VIRTUALIZATION

NETWORK VIRTUALIZATION CHALLENGES

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• Network virtualization challenges:

– Dynamic, fluid environment

– Multivendor

– Not designed to be virtualized

– Some workloads run only in physical

environments

CORE

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OVERCOME THE CHALLENGES

The six best practices for success:

Establish a solid

foundation

Enable universal

connectivity

Build the shortest

bridges possible

Avoid functional and

performance pitfalls

Use a single security

approach

Use a common network

management platform

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#1: ESTABLISH A SOLID FOUNDATION

• Ensure the physical network is solid

– Application/location independent

– Fair any-to-any connectivity

– Non-blocking

– Low latency, low jitter, and no packet loss

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#2: ENABLE UNIVERSAL CONNECTIVITY

– Support inter-, intra- and cross-virtual network communications

– Provide physical and virtual network routing and bridging

– Enable compute resources to move between networks

• Within physical data centers

• Between physical data centers

• Between a physical data center and a cloud environment

• Universal software-defined networking (SDN) gateways

SDN – software-defined network

USG – universal services gateway

VM – virtual machine

vSwitch – virtual switch

WAN – wide area network

Legend

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#3: BUILD SHORTEST BRIDGES POSSIBLE

– For large pools, gateways should be in upper tiers of the data center

network such as the access tier or the core/aggregation tier

– For multiple virtual networks within a single physical environment, the

gateway should be at the edge routing tier

• Bridges or gateways should be close to the physical resources

Physical

Virtual

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#4: AVOID FUNCTIONAL AND PERFORMANCE PITFALLS

• Use hardware-based overlay replication to prevent performance and reliability

issues caused by packet flooding

– Offloads broadcast, unicast and multicast packets from the virtual network

– Converts the packets into standard broadcast, unicast or multicast packets

– Packets are then forwarded to their receivers, delivering performance, scale

and reliability

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#5: USE SINGLE SECURITY APPROACH

• Deploy security policies across entire networks easily and quickly

– Reduce errors and security gaps

– Simplify and eliminate duplication of admin tasks

– Lower overhead costs

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#6: USE COMMON NETWORK MANAGEMENT PLATFORM

• Single-pane-of-glass management helps identify and arbitrate issues

– Expedites troubleshooting

– Prevents finger pointing

– Ensures consistent behavior across physical and virtual networks

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JUNIPER SUPPORTS VMWARE NSX

• Juniper and VMware have partnered to integrate Juniper solutions with

the VMware NSX platform

– Programmatically connects virtual and physical networks

– Delivers L2 gateway services to bridge virtual and physical network environments

– Optimizes NSX deployments for all data center network topologies

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ACHIEVE NETWORK VIRTUALIZATION WITH JUNIPER

NETWORKS METAFABRIC™ ARCHITECTURE

• Deploy, utilize and manage a unified pool of network resources across multiple

data centers, providing flexibility and lower costs

• Protect IT investment by helping to adapt to changing data center needs

Simple SmartOpen

Easy to

deploy & use

Save time,

improve performance

Maximize

flexibility

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FOR MORE INFORMATION

Download “Network Virtualization:

Six Best Practices for Overcoming Common Challenges”