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Catalyst 6500 Series Switch Command Reference—Release8.1
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands set vlan mapping
set vlan mapping
To map reserved VLANs to nonreserved VLANs or map 802.1Q VLANs to ISL VLANs, use the set vlan
mapping command.
set vlan mapping reserved vlan non-reserved vlan
set vlan mapping dot1q 1q_vlan_num isl isl_vlan_num
Syntax Description
Defaults This command has no default settings.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines VLAN and MISTP instance mapping can be set only on the switch that is in either VTP server mode or
in transparent mode.
IEEE 802.1Q VLAN trunks support VLANs 1 through 4094. ISL VLAN trunks support VLANs 1
through 1024 (1005 to 1024 are reserved). The switch automati call y maps 802. 1Q VLA Ns 10 00 an d
lower to ISL VLANs with the same number.
Use this feature to map 802.1Q VLANs above 1000 to ISL VLANs.
The total of all mappings must be less than or equal to eight. Only one 802.1Q VLAN can be mappe d to
an ISL VLAN. For example, if 802.1Q VLAN 800 has been automatically mapped to ISL VLAN 800,
do not manually map any other 802.1Q VLANs to ISL VLAN 800.
You cannot overwrite existing 802.1Q VLAN mapping. If the 802.1Q VLAN number already exists, the
command is aborted. You must first clear that mapping.
The reserved vlan range is 1002 to 1024. You can map the entire reserved range with the excep tion o f
the default media VLANs 1002 to 1005.
You cannot overwrite existing VLAN mapping. If the VLAN number already exists, the command is
aborted. You must first clear that mapping.
If the VLAN number does not exist, then either of the following occurs:
•If the switch is in server or transparent mode, the VLAN is created with all default values.
•If the switch is in client mode, then the command proceeds without creating the VLAN. A warning
will be given indicating that the VLAN does not exist.
reserved vlan Specifies the reserved VLAN; valid values are from 1006 to 1024.
non-reserved vlan Specifies the nonreserved VLAN; valid values are from 1 to 1005
and from 1025 to 4094.
dot1q 1q_vlan_num Specifies the 802.1Q VLAN; valid values are from 1001 to 4094.
isl isl_vlan_num Specifies the ISL VLAN; valid values are from 1 to 1000.