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© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Chapter 1:
Data Center Design with
Cisco Nexus Switches and
Virtual PortChannel: Overview
Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 22
Contents
Introduction........................................................................ ..........................................................................................3Current Envi
ronments........................................................................ .........................................................................3 Consolidation........................................................................ ....................................................................................3End of the Row and Top of the Rack ........................................................................
................................................3 Layer 2........................................................................ ..............................................................................................4 V-Shape........................................................................ ............................................................................................4 Common Designs ........................................................................ .............................................................................4 Next-Generation Data Centers........................................................................ ............................................................5 All Links Forwarding........................................................................ ..........................................................................6Server Connectivity at 10 Gigabit Ethernet........................................................................
.......................................6 Fabric Extender........................................................................ .................................................................................6Unified I/O
Support ........................................................................ ...........................................................................6Cut-through Operations and Latency........................................................................
................................................6Using Cisco Nexus Switches and vPC to Design Data Centers................................................................................6
Technology Overview........................................................................ ..........................................................................7 Virtual PortChannel........................................................................ ..........................................................................7 vPC Forwarding.................................................................. ..................................................................................8 vPC and VSS ........................................................................ .............................................................................11 Spanning Tree Protocol........................................................................ ..............................................................1210 Gigabit Ethernet to the Server........................................................................
....................................................13 Teaming on the Server ........................................................................ ...................................................................13 Unified I/O........................................................................ .......................................................................................14 FCoE........................................................................ ..........................................................................................14Virtual N-Ports and Virtual F-Ports........................................................................
.............................................14 The VLAN-VSAN Relationship........................................................................ ...................................................15 FIP Protocol ........................................................................ ...............................................................................15 IEEE DCB........................................................................ .......................................................................................15 DCBX........................................................................ .........................................................................................15 VN-Link and VN-TAG........................................................................ ......................................................................16Cisco Nexus Products in This Design Guide ........................................................................
..................................17Cisco Nexus 7000 Series Overview........................................................................
................................................17Cisco Nexus 5000 Series Overview........................................................................
................................................18Cisco Nexus 2000 Series Overview........................................................................
................................................18Cisco Nexus 1000V Series Overview ........................................................................
.............................................19 Software Revisions ........................................................................ .........................................................................20Core, Aggregation, and Access Layers........................................................................
...........................................20 Data Center Pods........................................................................ ...............................................................................21 Cabling Considerations........................................................................ ...................................................................21 For More Information........................................................................ .........................................................................22Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 22
Introduction
This collection of white papers provides guidelines for designing and deploying the access and aggregation layers in the data center using Cisco Nexus products.This document covers the following topics:
PortChannel (Chapter 5)
Virtual PortChannels (Chapter 6)
This document is a natural extension of Data Center Design - IP Network Infrastructure published at the following
link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/DC_3_0/DC-3_0_IPInfra.html.This document doesn't cover the integration of load balancers and firewalls in the data center, which is described in
the following publications: http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/nx_7000_dc.html and http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/DC_3_0/dc_sec_design.html. © 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.Chapter 1:
Data Center Design with
Cisco Nexus Switches and
Virtual PortChannel: Overview
Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 22
Contents
Introduction........................................................................ ..........................................................................................3Current Envi
ronments........................................................................ .........................................................................3 Consolidation........................................................................ ....................................................................................3End of the Row and Top of the Rack ........................................................................
................................................3 Layer 2........................................................................ ..............................................................................................4 V-Shape........................................................................ ............................................................................................4 Common Designs ........................................................................ .............................................................................4 Next-Generation Data Centers........................................................................ ............................................................5 All Links Forwarding........................................................................ ..........................................................................6Server Connectivity at 10 Gigabit Ethernet........................................................................
.......................................6 Fabric Extender........................................................................ .................................................................................6Unified I/O
Support ........................................................................ ...........................................................................6Cut-through Operations and Latency........................................................................
................................................6Using Cisco Nexus Switches and vPC to Design Data Centers................................................................................6
Technology Overview........................................................................ ..........................................................................7 Virtual PortChannel........................................................................ ..........................................................................7 vPC Forwarding.................................................................. ..................................................................................8 vPC and VSS ........................................................................ .............................................................................11 Spanning Tree Protocol........................................................................ ..............................................................1210 Gigabit Ethernet to the Server........................................................................
....................................................13 Teaming on the Server ........................................................................ ...................................................................13 Unified I/O........................................................................ .......................................................................................14 FCoE........................................................................ ..........................................................................................14Virtual N-Ports and Virtual F-Ports........................................................................
.............................................14 The VLAN-VSAN Relationship........................................................................ ...................................................15 FIP Protocol ........................................................................ ...............................................................................15 IEEE DCB........................................................................ .......................................................................................15 DCBX........................................................................ .........................................................................................15 VN-Link and VN-TAG........................................................................ ......................................................................16Cisco Nexus Products in This Design Guide ........................................................................
..................................17Cisco Nexus 7000 Series Overview........................................................................
................................................17Cisco Nexus 5000 Series Overview........................................................................
................................................18Cisco Nexus 2000 Series Overview........................................................................
................................................18Cisco Nexus 1000V Series Overview ........................................................................
.............................................19 Software Revisions ........................................................................ .........................................................................20Core, Aggregation, and Access Layers........................................................................
...........................................20 Data Center Pods........................................................................ ...............................................................................21 Cabling Considerations........................................................................ ...................................................................21 For More Information........................................................................ .........................................................................22Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 22
Introduction
This collection of white papers provides guidelines for designing and deploying the access and aggregation layers in the data center using Cisco Nexus products.This document covers the following topics:
PortChannel (Chapter 5)
Virtual PortChannels (Chapter 6)
This document is a natural extension of Data Center Design - IP Network Infrastructure published at the following
link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/DC_3_0/DC-3_0_IPInfra.html.This document doesn't cover the integration of load balancers and firewalls in the data center, which is described in
the following publications: http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/nx_7000_dc.html and http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/DC_3_0/dc_sec_design.html.- cisco data center/network architecture design guide