Cisco Catalyst 3560-X Software Configuration Manual page 468
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Also See for Catalyst 3560-X:
- Command reference manual (1188 pages) ,
- Software configuration manual (1438 pages) ,
- Manual (276 pages)
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Configuring Extended-Range VLANs
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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. The extended-range VLAN has the default
Ethernet VLAN characteristics (see
configuration are the only parameters you can change. See the description of the vlan global
configuration command in the command reference for the default settings of all parameters. In VTP
version 1 or 2, 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 VLAN configuration mode, and the extended-range VLAN
is not created.
In VTP version 1 and 2, 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. VTP version 3 saves extended-range VLANs in the VLAN database.
Before you create an extended-range VLAN, you can verify that the VLAN ID is not used internally by
Note
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
section on page 1-13
Beginning in privileged EXEC mode, follow these steps to create an extended-range VLAN:
Command
Step 1
configure terminal
Step 2
vtp mode transparent
Step 3
vlan vlan-id
Step 4
mtu mtu-size
Step 5
remote-span
Step 6
end
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
1-12
Although the switch or switch stack supports a total of 1005 (normal-range and extended-range)
VLANs with the IP base or IP services feature set and 255 VLANs with the LAN base feature set,
the number of routed ports, SVIs, and other configured features affects the use of the switch
hardware. If you try to create an extended-range VLAN and there are not enough hardware resources
available, an error message is generated, and the extended-range VLAN is rejected.
In a switch stack, the whole stack uses the same running configuration and saved configuration, and
extended-range VLAN information is shared across the stack.
before creating the extended-range VLAN.
Purpose
Enter global configuration mode.
Configure the switch for VTP transparent mode, disabling VTP.
Note
Enter an extended-range VLAN ID and enter VLAN configuration mode.
The range is 1006 to 4094.
(Optional) Modify the VLAN by changing the MTU size.
Note
(Optional) Configure the VLAN as the RSPAN VLAN. See the
"Configuring a VLAN as an RSPAN VLAN" section on page
Return to privileged EXEC mode.
Table
1-2) and the MTU size, private VLAN, and RSPAN
the"Creating an Extended-Range VLAN with an Internal VLAN ID"
This step is not required for VTP version 3.
Although all VLAN commands appear in the CLI help, only the
mtu mtu-size, private-vlan, and remote-span commands are
supported for extended-range VLANs.
Chapter 1
Configuring VLANs
1-18.
OL-25303-03
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Troubleshooting
