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Dynamic FCoE J Metz, Ph.D Sr. Product Manager, Data Center Group

Introducing dynamic FCoE

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VM World 2014 presentation by J Metz, Sr. Product Manager for the Data Center group at Cisco

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Page 1: Introducing dynamic FCoE

Dynamic FCoE

J Metz, Ph.D

Sr. Product Manager, Data Center Group

Page 2: Introducing dynamic FCoE

2© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Table of Contents

Quick History

What Is Dynamic FCoE?

How It Works

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3© 2013-2014 Cisco and/or its affiliates. All rights reserved.© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Using Fibre Channel over Ethernet to Provide Consolidated I/O

History of Convergence

Traditional Data Centers had separation at the host Separate Ethernet-based networks and

Fibre Channel-based networks Multiple cards per server

2 HBAs Average of 6 (or more!) NICs per server High underutilization drives up unnecessary

power, cooling, and asset costs

* not to scale

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4© 2013-2014 Cisco and/or its affiliates. All rights reserved.© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Using Fibre Channel over Ethernet to Provide Consolidated I/O

History of Convergence

Access-Layer Convergence Consolidate I/O on 10G links Drastically reduced CapEx and OpEx Multiprotocol connectivity eased

purchasing decisions for server refreshes

Prepared Data Centers for VM mobility requirements Any VM could connect to FC storage if

necessary, not just the ones with HBAs pre-installed

* not to scale

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5© 2013-2014 Cisco and/or its affiliates. All rights reserved.© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Using Fibre Channel over Ethernet to Provide Consolidated I/O

History of Convergence

Multihop Convergence Standardize on Ethernet assets

One physical infrastructure Keeps best practices for both Ethernet

and Fibre Channel

Reduction of Additional Equipment

Protected investment and future-proofed deployments

* not to scale

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Case Study

Boeing Aerospace and Defense

Reduced deployment times for each server by 25%

Saved 35% in Cap-ex and cut 90% of Power costs “…utilizing the cores better, and increasing I/O with fewer cables and switches” “…use our existing personnel to manage both IP and FCoE resources quickly and efficiently, increasing their value within the

company

CORE

SAN BSAN A

FCoE FCoE

EthernetFibre ChannelDedicated FCoE Converged Link

Multi-Hop FCoE End-to-End FCoE

http://www.cisco.com/en/US/solutions/collateral/ns340/ns517ns224//boeing.pdf

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FCoE So far...

Replicating Fibre Channel architectures

Maintain best practices

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Is That All?

What’s next!?

Changes in hardware and software are affecting future topologies

• How to address new topologies?• What about multiprotocol storage?• Can we get true consolidated I/O

throughout the fabric?

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9© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Introducing

Dynamic FCoE

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What is Dynamic FCoE?

Standard Fibre Channel over Ethernet that uses FabricPath forwarding for: Greater resilience Faster fabric convergence Higher scalability

Why is it “Dynamic?” Links between switches (Inter-Switch

Links) are dynamically created between end-points Fewer configuration errors

Fabric Ports are dynamically configured to create “virtual Fibre Channel” interfaces

FCoE as Storage Network Overlay

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Leaf

Spine

How to address new topologies?

Evolution of Ethernet Fabrics

What about multiprotocol storage?

Can we get true consolidated I/O throughout the fabric?

Access/Aggregation/Core Leaf/Spine

Access

Aggregation

Core

40/100GbE

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Reliability and Resilience at Greater Scale

Why Use Dynamic FCoE?

Use Ethernet Equal-Cost Multipathing (ECMP) to provide load-balanced traffic across entire topology

Greater resiliency and robustness across core (spine)

Dynamic configuration of Inter-Switch Links (ISLs)

iSCSI/NFS FCoE

FibreChannel

MultiprotocolServer

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Evolution of Convergence

Use IEEE ETS to guarantee bandwidth for traffic types

Use IEEE PFC to create lossless traffic for FCoE

Use advanced Ethernet fabric forwarding for ECMP traffic flows

Use Ethernet infrastructure for all kinds of storage (including connections to traditional FC storage environments)

Increase IT agility and operational and resource efficiency while speeding delivery of services to application owners

Improve scalability for all application needs and maintain high, consistent performance for all traffic types, not just storage

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

How does it work?

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Rethinking Storage Networking

Typical Fibre Channel topology: Edge/Core/Edge not

uncommon

Dual SANs for Redundancy

SAN A SAN B

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Rethinking Storage Networking

Typical Fibre Channel topology: Edge/Core/Edge not

uncommon

Dual SANs for Redundancy If path breaks or core

switch goes down, SAN fails over to SAN B

SAN A SAN BX

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Rethinking Storage Networking

Typical Fibre Channel topology: Edge/Core/Edge not

uncommon

Dual SANs for Redundancy If path breaks or core

switch goes down, SAN fails over to SAN B

Meaning, if a core switch goes down, the entire SAN side goes down

SAN A SAN BX

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Logical Separation of SAN A/B

Storage nodes reside on the leafs

SAN A/B separation occurs at the most vulnerable part of the network – the server to the access layer switch (i.e., leaf)

What the topology is

© 2013-2014 Cisco and/or its affiliates. All rights reserved.

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Logical Separation of SAN A/B

Storage sees an edge-core topology equivalence

Complete, load-balance ISLs dynamically created between FCF leafs

What Fibre Channel sees

© 2013-2014 Cisco and/or its affiliates. All rights reserved.

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Rethinking Storage Networking

Logical separation instead of physical separation

SAN A SAN B SAN A SAN B

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Rethinking Storage Networking

Logical separation instead of physical separation

Dynamically creates relationships between Fibre Channel Forwarders (FCFs)

SAN A SAN B SAN A SAN B

FCF FCF FCF FCF

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Rethinking Storage Networking

Logical separation instead of physical separation

Dynamically creates relationships between Fibre Channel Forwarders (FCFs)

Dynamically configures the ports for Inter-Switch Links (ISLs)

SAN A SAN B SAN A SAN B

FCF FCF FCF FCF

VE_Port VE_Port

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Rethinking Storage Networking

Logical separation instead of physical separation

Dynamically creates relationships between Fibre Channel Forwarders (FCFs)

Dynamically configures the ports for Inter-Switch Links (ISLs)

Increases redundancy and resiliency Storage traffic is load-

balanced across Equal-Cost Multipathing Topology

SAN A SAN B SAN A SAN B

FCF FCF FCF FCF

VE_Port VE_Port

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Rethinking Storage Networking

Logical separation instead of physical separation

Dynamically creates relationships between Fibre Channel Forwarders (FCFs)

Dynamically configures the ports for Inter-Switch Links (ISLs)

Increases redundancy and resiliency Storage traffic is load-balanced

across Equal-Cost Multipathing Topology

If a spine switch fails, SAN A is not interrupted!

SAN A SAN B SAN A SAN B

FCF FCF FCF FCF

VE_Port VE_Port

X

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Rethinking Storage Networking

SAN A SAN B SAN A SAN B

FCF FCF FCF FCF

VE_PortVE_Port

X

If a FCF Leaf switch fails, MPIO software fails over as normal

Do not lose entirety of “SAN A” bandwidth capability

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Availability

Dynamic FCoE

Hardware Nexus 5500 (Leaf) - Now! Nexus 5600 (Leaf/Spine) - Now! Nexus 6001 (Leaf/Spine) - Now! Nexus 6004 (Leaf/Spine) - Now! Nexus 7000 (Spine) - Q3 2014 Nexus 7700 (Spine) - Q3 2014

Software R7.0(1)N1(1) - Now!

Nexus 5500

Nexus 5672

Nexus 56128

Nexus 6004

Nexus 6001

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© 2013-2014 Cisco and/or its affiliates. All rights reserved.

Allows maximum convergence with leaf/spine topologies Maximizes bandwidth Inherently scalable Capitalizes on 40/100G Ethernet backbones (when

available) Deterministic, predictable performance across network

Does not change well-understood Fibre Channel rules: In-order delivery Error recovery Load balancing Failover

Adds to the list of flexible deployment options Optimal for East-West network deployments Compatible with Classical “hybrid” multihop solutions Ideal for “pod” environments, with or without high degree of

VM mobility

Dynamic FCoE Summary

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Thank you.

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