Dell Presentation Template Wide Screen 16:9 Layout - Interop
Dell Presentation Template Wide Screen 16:9 Layout - Interop
Dell Presentation Template Wide Screen 16:9 Layout - Interop
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Industry Perspectives of SDN:<br />
Technical Challenges and Business Use Cases<br />
Geng Lin<br />
CTO, Networking Business, <strong>Dell</strong> Inc.<br />
<strong>Interop</strong> Las Vegas - May 2012
Sea Change is Coming to Networking<br />
2 Confidential
New Trends for Enterprise Networking<br />
Software Defined<br />
Networking<br />
3 DELL CONFIDENTIAL
The SDN Ecosystem and Business Value Chain<br />
4
SDN is a Journey<br />
• The network will evolve towards a software defined<br />
paradigm<br />
• OpenFlow represents the most promising approach…<br />
but need to be collaborative with hypervisor virtual<br />
networking frameworks<br />
• SDN requires the development of the entire business<br />
value chain<br />
• Silicon vendor… device manufacture… control plane<br />
software… network applications...<br />
• New software tools… programming model… developer<br />
skills…<br />
• Ecosystem approach… new business model…<br />
• Disruptive without Disruption<br />
• Seamless integration with existing customer networks<br />
• Innovation with well defined boundaries… abstraction<br />
Legacy<br />
BGP<br />
OpenFlow<br />
BGP<br />
BGP<br />
5 Confidential
SDN as a Journey - Real World Use Case:<br />
Multi-tenant Data Center<br />
• Issues… support multiple virtual data centers<br />
on a shared physical infrastructure<br />
Workload<br />
Orchestrator<br />
A B C D E F<br />
Logical<br />
L2<br />
Switch<br />
SDN<br />
Controller A D C E B F<br />
VDC<br />
Logical<br />
L2<br />
Switch<br />
VDC<br />
• Customers<br />
• Hosted service providers<br />
• Enterprise private clouds<br />
Logical<br />
L2<br />
Switch<br />
• Solution… OpenFlow-enabled Mutli-Tenancy<br />
Data Center application<br />
• Dynamically created and segregated data planes<br />
on the same physical network infrastructure<br />
• Provides support for workload aware network<br />
orchestration, traffic steering, service insertion<br />
• Taday’s solution…<br />
• VLAN-based segregation with external<br />
management and orchestration systems<br />
• Static… no network abstraction… CLI as<br />
“programming language”… VLAN limits<br />
6<br />
Confidential
<strong>Dell</strong> Multi-Tenancy Data Center Solution<br />
• Logical<br />
Tenant Views<br />
• Multiple<br />
Orchestrators<br />
• Private and<br />
hybrid cloud<br />
deployment<br />
scenarios<br />
• Connection<br />
Manager<br />
AIM<br />
Workloads<br />
OF-<br />
Controller<br />
Console<br />
Network<br />
Policies<br />
AIM<br />
Console<br />
AIM 3.4.2<br />
OpenStack<br />
Quantum<br />
Service<br />
Connection Manager<br />
Net Virtualization<br />
OpenFlow<br />
Controller<br />
Horizon<br />
Console<br />
NOVA<br />
Service<br />
SDN<br />
Controller<br />
OpenStack<br />
Workloads<br />
VM VM VM<br />
KVM<br />
KVM<br />
SERVER<br />
SERVER<br />
SWITCH<br />
S60<br />
vCenter<br />
VM VM VM<br />
ESX<br />
ESX<br />
SERVER<br />
SERVER<br />
SWITCH<br />
S60<br />
7<br />
Network Engineering
<strong>Dell</strong> SDN Demo at <strong>Interop</strong><br />
SDN-based Multi-Tenancy<br />
Data Center Solution<br />
• Multi-tenant virtual<br />
network<br />
• Multi-platform<br />
orchestration<br />
• Purpose-built for the Cloud<br />
Multi-Tenancy Data Center<br />
Key Architecture<br />
Components<br />
• <strong>Dell</strong> SDN enabled switches<br />
• Big Switch Controller<br />
• <strong>Dell</strong> network resource<br />
abstraction software<br />
• <strong>Dell</strong> Orchestration<br />
Software<br />
About the demo:<br />
In this demo, we are highlighting FTOS-enabled OpenFlow switching, interoperability<br />
with Big Switch Network’s SDN controller, and <strong>Dell</strong>’s innovative connection abstraction<br />
software. This innovative combination of technology allows multi-tenant data center<br />
operators to virtualize network infrastructure, allowing multiple orchestration systems to<br />
manage a common physical network infrastructure.<br />
Global Marketing
Near Term SDN Market Opportunity<br />
Multi-tenant Data Center<br />
• Easier manageability of tenant networks, workload<br />
mobility and tenant network extensibility<br />
• Ease of inserting network services, traffic steering,<br />
and integration with L4-L7 services<br />
• Allows more granular control of the traffic<br />
engineering, security, and QoS on per tenant basis<br />
• Enhances legacy network architectures rather than<br />
replacing it<br />
Multi-Tenant DC Infrastructure Solution<br />
Multi-tenant DC Software Solution<br />
9<br />
Confidential
SDN as a Journey - Data-Plane Challenges<br />
• State of Specification<br />
• Maturity Concerns<br />
• OF 1.0 best leverages ACL tables… OF 1.1 leverages multiple tables<br />
• Silicon Concerns<br />
• Spec is much ahead of silicon development… OF Spec is a moving target for<br />
merchant silicon<br />
• Merchant silicon is not optimized for OF… supports of current networking<br />
features is a higher priority<br />
• Specific issues<br />
• Scalability of Flow-Matches (limited by TCAM size)<br />
• Cost concerns exclude rich multicore xPU ecosystem<br />
• X = N, G, C<br />
10 Confidential
SDN as a Journey – Control Plane Challenges<br />
• Control Plane scalability<br />
• Centralized vs. distributed controllers...<br />
• Single view of the state of the network, forwarding<br />
tables,… is this a distributed database problem?<br />
• <strong>Interop</strong>erability<br />
• SDN/NON-SDN<br />
• Inter-Controller<br />
• Between different controllers<br />
• Orchestrating SDNs managed by different<br />
controllers<br />
• With Hypervisor virtual networking<br />
BGP<br />
BGP<br />
Legacy<br />
y<br />
OpenFlow<br />
BGP<br />
11 Confidential
SDN as a Journey - Application Environments Challenges<br />
• Network Resource Abstraction & Conflict<br />
Resolution<br />
• Resource abstraction<br />
• Conflict resolution among different application<br />
actions<br />
• Development tools and New Application<br />
Paradigm<br />
• Computing system style application…<br />
• New class of Network Programming<br />
Languages… New tools<br />
• New development skills… New talents... New<br />
education curriculum…<br />
Network Programming<br />
Language<br />
Network Resource Abstraction<br />
Forwarding<br />
Fabric<br />
12 Confidential
Summary<br />
• Networking architecture is moving towards<br />
a software defined networking paradigm<br />
• Solid business use cases emerging…<br />
business world takes low hanging fruits<br />
approach…<br />
• Technology challenges… silicon… data<br />
plane… control plane… application<br />
environment<br />
• OpenFlow represents the best approach of<br />
SDN thus far… but needs to collaborate with<br />
the hypervisor virtual networking<br />
frameworks<br />
• SDN is a journey… entire networking<br />
business value chain will be transformed
<strong>Dell</strong> on the SDN Journey… Come to See Us<br />
<strong>Dell</strong> Demos @ <strong>Interop</strong><br />
Data Center<br />
Virtualization<br />
Data Center Fabric Management<br />
<strong>Dell</strong> Fabric<br />
Manager<br />
OpenManage<br />
Network Mgr<br />
Virtual Desktop<br />
Infrastructure<br />
Automated Workload Mobility<br />
Network Virtualization<br />
Using Overlay<br />
SDN Multi-Tenant Data<br />
Center<br />
VM Tunnel<br />
Global Marketing
Thank You!<br />
geng_lin@dell.com<br />
15<br />
Office of the CTO
Change language