© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-1

Module 5Implementing a High Available Network

Lesson 2: Implementing High Availability

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-2

Layer 2 Distributed VLANs on Access Switches

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-3

Layer 2 Local VLANs on Access Switches

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-4

Layer 3 Access-to-Distribution Interconnection

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-5

Daisy-Chaining Access Layer Switches

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Daisy-Chaining Access Switch Issues

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-7

StackWise Technology Access Switches

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Avoiding Too Little Redundancy

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Impact of Uplink Failure

© 2009 Cisco Systems, Inc. All rights reserved. SWITCH v1.0—1-10

Summary