CCNA英文版14.ppt

© 2002, Cisco Systems, Inc. All rights reserved.
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Extending works with VLANs
Module 4
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Objectives
pleting this module, you will be able to:
Use Cisco mands to configure VLANs, VTP, IEEE trunking, and ISL trunking, given a functioning access layer switch
Execute an add, move, or change on an access layer switch, given a work requirement
Use mands to identify anomalies in VLAN, VTP, ISL trunking, and spanning-tree operations, given an operational access layer switch
Use mands to identify events and anomalies in VLAN, VTP, ISL trunking, and spanning-tree operations, given an operational access layer switch
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© 2002, Cisco Systems, Inc. All rights reserved.
4
VLAN Operation Overview
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Objectives
pleting this lesson, you will be able to:
Describe the features and operation of a VLAN, VTP, IEEE trunking, and ISL trunking
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A VLAN = A Broadcast Domain = work ()
VLAN Overview
Segmentation
Flexibility
Security
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Each logical VLAN is like a separate physical bridge.
VLANs can span across multiple switches.
Trunks carry traffic for multiple VLANs.
Trunks use special encapsulation to distinguish between different VLANs.
VLAN Operation
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VLAN Membership Modes
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Trunking
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Importance of Native VLANs
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