Unified Fabric:Optimized Networking in Virtualized EnvironmentsLukas Krattiger (@CCIE21921)

Technical Marketing Engineer

Cisco Systems, Inc.

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The Data Center Fabric Journey

STP

MC-LAG(vpc)

MAN/WAN

L2MP(FabricPath)

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Why is this important to my Virtual Environment?

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NOT!

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1. Provide a Performing Virtualize Environment

2. Fast Deployment of my Hypervisors and Virtual-Machines (VMs)

3. Keep the Application Folks happy

•

•

10. Provide Network configuration

11. Integrate Network Services (e.g. Load Balancers and Firewalls)

My Priorities

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Why do I have to care on VM placement because of my Network?

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YOU DO NOT!

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The Workload asks for Network Configuration Independent of Virtual Machine Controller communication All type of Virtual-Switches supported

Based on learned VLAN configuration get pulled, instantiated and applied to the Network

Facilitates VM Mobility

The Virtual-Machine triggers Network Configuration

MAN/WAN

N1KV/OVSVirtual Switch

Gateway

VLAN: MAGENTAVLAN: GREYVLAN: RED

Config Repository

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Nexus 1000v provides enhanced visibility with VDP VDP (VSI Discovery and Configuration Protocol) is IEEE 802.1Qbg Clause 41

Additional Visibility with Nexus 1000v

MAN/WAN

N1KV/OVSVirtual Switch

VLAN: MAGENTAVLAN: GREYVLAN: RED

Nexus# show evb host

Host Name VNI Vlan BD Mac-address IP-Address Interface-------------------------------------------------------------------------------------------------------------------vmRED1 31000 3000 3000 0050.56ac.1f71 192.168.131.103

Eth1/21

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Why can’t the physical Network follow my Virtual Machine?

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IT CAN!

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Any Subnet anywhere => Any Leaf can instantiate ANY Subnet All Leafs share gateway IP and MAC for a Subnet ARPs are terminated on Leafs, No Flooding beyond Leaf

Facilitates VM Mobility, workload distribution, arbitrary clustering

Seamless Layer-2 or Layer-3 communication between physical hosts and virtual machines

The Network Follows the Virtual-Machine

MAN/WAN

N1KV/OVSVirtual Switch

Gateway

GW IP: 10.10.10.1 GW MAC: 2020:DEAD:BEEF

GW IP: 10.10.10.1 GW MAC: 2020:DEAD:BEEF

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The Data Center Fabric Journey

STP

MC-LAG(vpc)

MAN/WAN

L2MP(FabricPath)

MAN/WAN

OptimizedNetwork

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Simplified Optimized Automated

Device Auto-Configuration

Optimized Topology for Scale and Convergence

Any workload, Anywhere, Anytime

Auto-Configuration of Tenant and Network

DCNM aided Fabric Management and Troubleshooting

Minimized Flood & Learn across the Network

FabricPath/VXLAN with distributed Default-Gateway

End Host Discovery and Distribution (aka Control-Plane)

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Does my Virtualized Environment need to provide Networking?

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NO!

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WE DO

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From Weeks MinutesTO

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From Fog Of Uncertainty Complete TransparencyTO

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From Constrained UnlimitedTO

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From Rigidity FlexibilityTO

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Unified Fabric Innovations

provided by Cisco

http://www.cisco.com/go/dfa

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Recommended Reading

Using TRILL, FabricPath, and VXLAN: Designing Massively Scalable Data Centers (MSDC) with Overlays Sanjay K. Hooda Shyam Kapadia Padmanabhan Krishnan

ISBN-10: 1-58714-393-3ISBN-13: 978-1-58714-393-9

Thank you.

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