Cisco 3560G 48TS Software Configuration Guide - Page 258
Creating an Extended-Range VLAN
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Configuring Extended-Range VLANs Chapter 12 Configuring VLANs Creating an Extended-Range VLAN You create an extended-range VLAN in global configuration mode by entering the vlan global configuration command with a VLAN ID from 1006 to 4094. This command accesses the config-vlan mode. The extended-range VLAN has the default Ethernet VLAN characteristics (see Table 12-2) and the MTU size and RSPAN configuration are the only parameters you can change. Refer to the description of the vlan global configuration command in the command reference for defaults of all parameters. If you enter an extended-range VLAN ID when the switch is not in VTP transparent mode, an error message is generated when you exit from config-vlan mode, and the extended-range VLAN is not created. Extended-range VLANs are not saved in the VLAN database; they are saved in the switch running configuration file. You can save the extended-range VLAN configuration in the switch startup configuration file by using the copy running-config startup-config privileged EXEC command. Note Before you create an extended-range VLAN, you can verify that the VLAN ID is not used internally by entering the show vlan internal usage privileged EXEC command. If the VLAN ID is used internally and you want to free it up, go to the"Creating an Extended-Range VLAN with an Internal VLAN ID" section on page 12-15 before creating the extended-range VLAN. Beginning in privileged EXEC mode, follow these steps to create an extended-range VLAN: Step 1 Step 2 Step 3 Command configure terminal vtp mode transparent vlan vlan-id Step 4 mtu mtu-size Step 5 remote-span Step 6 Step 7 Step 8 end show vlan id vlan-id copy running-config startup config Purpose Enter global configuration mode. Configure the switch for VTP transparent mode, disabling VTP. Enter an extended-range VLAN ID and enter config-vlan mode. The range is 1006 to 4094. (Optional) Modify the VLAN by changing the MTU size. Note Although all VLAN commands appear in the CLI help in config-vlan mode, only the mtu mtu-size and remote-span commands are supported for extended-range VLANs. (Optional) Configure the VLAN as the RSPAN VLAN. See the "Configuring a VLAN as an RSPAN VLAN" section on page 23-17. Return to privileged EXEC mode. Verify that the VLAN has been created. Save your entries in the switch startup configuration file. To save extended-range VLAN configurations, you need to save the VTP transparent mode configuration and the extended-range VLAN configuration in the switch startup configuration file. Otherwise, if the switch resets, it will default to VTP server mode, and the extended-range VLAN IDs will not be saved. To delete an extended-range VLAN, use the no vlan vlan-id global configuration command. The procedure for assigning static-access ports to an extended-range VLAN is the same as for normal-range VLANs. See the "Assigning Static-Access Ports to a VLAN" section on page 12-11. 12-14 Catalyst 3560 Switch Software Configuration Guide 78-16156-01
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