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Cisco
Cisco Nexus 5010 Switch
Guida Alla Progettazione
Cisco Cisco Nexus 5010 Switch Guida Alla Progettazione
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Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 2 of 22
Contents
Introduction.................................................................................................................................................................. 3
Current Environments ................................................................................................................................................. 3
Consolidation ............................................................................................................................................................ 3
End 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.................................................................................................................................................. 6
Server Connectivity at 10 Gigabit Ethernet ............................................................................................................... 6
Fabric Extender......................................................................................................................................................... 6
Unified I/O Support ................................................................................................................................................... 6
Cut-through Operations and Latency ........................................................................................................................ 6
Using 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...................................................................................................................................... 12
10 Gigabit Ethernet to the Server............................................................................................................................ 13
Teaming on the Server ........................................................................................................................................... 13
Unified I/O ............................................................................................................................................................... 14
FCoE .................................................................................................................................................................. 14
Virtual 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.............................................................................................................................................. 16
Cisco Nexus Products in This Design Guide .......................................................................................................... 17
Cisco Nexus 7000 Series Overview........................................................................................................................ 17
Cisco Nexus 5000 Series Overview........................................................................................................................ 18
Cisco Nexus 2000 Series Overview........................................................................................................................ 18
Cisco Nexus 1000V Series Overview ..................................................................................................................... 19
Software Revisions ................................................................................................................................................. 20
Core, Aggregation, and Access Layers ................................................................................................................... 20
Data Center Pods ....................................................................................................................................................... 21
Cabling Considerations........................................................................................................................................... 21
For More Information................................................................................................................................................. 22
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