Cisco 3560G 48TS Software Configuration Guide - Page 248

Configuring Normal-Range VLANs Chapter 12 Configuring VLANs Table 12-1 Port Membership Modes (continued) Membership Mode Dynamic access Voice VLAN VLAN Membership Characteristics VTP Characteristics A dynamic-access port can belong to one VLAN (VLAN ID 1 to 4094) and is dynamically assigned by a VMPS. The VMPS can be a Catalyst 5000 or Catalyst 6500 series switch, for example, but never a Catalyst 3560 switch. The Catalyst 3560 switch is a VMPS client. You can have dynamic-access ports and trunk ports on the same switch, but you must connect the dynamic-access port to an end station or hub and not to another switch. VTP is required. Configure the VMPS and the client with the same VTP domain name. To participate in VTP, there must be at least one trunk port on the switch connected to a trunk port of a second switch. For configuration information, see the "Configuring Dynamic-Access Ports on VMPS Clients" section on page 12-30. A voice VLAN port is an access port attached to a Cisco IP Phone, configured to use one VLAN for voice traffic and another VLAN for data traffic from a device attached to the phone. For more information about voice VLAN ports, see Chapter 14, "Configuring Voice VLAN." VTP is not required; it has no affect on voice VLAN. For more detailed definitions of the modes and their functions, see Table 12-4 on page 12-17. When a port belongs to a VLAN, the switch learns and manages the addresses associated with the port on a per-VLAN basis. For more information, see the "Managing the MAC Address Table" section on page 6-21. Configuring Normal-Range VLANs Normal-range VLANs are VLANs with VLAN IDs 1 to 1005. If the switch is in VTP server or transparent mode, you can add, modify or remove configurations for VLANs 2 to 1001 in the VLAN database. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed.) Note When the switch is in VTP transparent mode, you can also create extended-range VLANs (VLANs with IDs from 1006 to 4094), but these VLANs are not saved in the VLAN database. See the "Configuring Extended-Range VLANs" section on page 12-12. Configurations for VLAN IDs 1 to 1005 are written to the file vlan.dat (VLAN database), and you can display them by entering the show vlan privileged EXEC command. The vlan.dat file is stored in Flash memory. Caution You can cause inconsistency in the VLAN database if you attempt to manually delete the vlan.dat file. If you want to modify the VLAN configuration, use the commands described in these sections and in the command reference for this release. To change the VTP configuration, see Chapter 13, "Configuring VTP." You use the interface configuration mode to define the port membership mode and to add and remove ports from VLANs. The results of these commands are written to the running-configuration file, and you can display the file by entering the show running-config privileged EXEC command. 12-4 Catalyst 3560 Switch Software Configuration Guide 78-16156-01