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30 cze 2024 · VLAN IDs, which range from 1 to 4094, play a pivotal role in network segmentation. The ID numbers provide the necessary labeling required to keep traffic separate and securely managed.
3 sie 2024 · Normal Range: VLAN IDs 2-1001 are generally available for user-created VLANs. These are widely configurable and used for most practical purposes in everyday enterprise and organizational networks. Extended Range: VLAN IDs 1002-4094 are often designated for specific uses, such as token ring and FDDI VLANs. These are less commonly used in ...
30 cze 2024 · By following these steps, you'll be able to successfully configure VLAN ID ranges and significantly improve network management and performance. After mastering these fundamentals, explore more advanced configurations to enhance your network's resilience and efficiency.
User-configured VLANs have unique IDs from 1 to 4094. To create a VLAN, enter the vlan command with an unused ID. To verify whether a particular ID is in use, enter the show vlan id ID command. To modify a VLAN, enter the vlan command for an existing VLAN.
This chapter describes how to configure normal-range VLANs (VLAN IDs 1 to 1005) and extended-range VLANs (VLAN IDs 1006 to 4094) on the Catalyst 3560 switch. It includes information about VLAN membership modes, VLAN configuration modes, VLAN trunks, and dynamic VLAN assignment from a VLAN Membership Policy Server (VMPS).
The VLAN ID is a 12 bit field found within the VLAN tag, which is also known as the extended range of VLAN IDs. VLAN ID values of 0 and 4095 are unusable as actual VLAN IDs. If these values are found in the VLAN ID field of a VLAN tag, then they are interpreted like so: VLAN ID of 0. This value is used for what is called “priority tagging”.
The VLAN ID range is from 0 to 4095, however, 0 and 4095 are reserved. When a switch receives an Ethernet frame with a VLAN tag, it uses these fields, especially the VLAN ID, to determine how to forward the frame within the network.
