TAILIEUCHUNG - CNNA3-Chapter 3: Part II

The concept of trunking began with the telephone industry. • Multiple calls were moved between customers and central offices or between the offices themselves over a single physical same principle was applied to data communications to make better use of the communication line. • Additional advantages and cost savings were gained by using the same line for voice same principle of trunking is applied to network switching technologies. • A trunk is a physical and logical connection between two switches across which network traffic travels | Chapter 3 Virtual Local Area Networks (VLANs) Part II Virtual Local Area Networks VLAN Trunking VLAN Trunking The concept of trunking began with the telephone industry. Multiple calls were moved between customers and central offices or between the offices themselves over a single physical connection. VLAN Trunking The same principle was applied to data communications to make better use of the communication line. Additional advantages and cost savings were gained by using the same line for voice communications. 24 Channel T1 Line with Data and Voice VLAN Trunking The same principle of trunking is applied to network switching technologies. A trunk is a physical and logical connection between two switches across which network traffic travels. No trunk Trunk VLAN Trunking It is also important to realize that a trunk link does not belong to a specific VLAN. The responsibility of a trunk link is to act as a conduit for VLANs. Between switches and routers. Between switches and switches. .

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