Command Modes
User EXEC
Command History
ModificationRelease
This command was introduced.Cisco IOS XE 3.3SECisco IOS XE 3.3SE
Usage Guidelines
In the show vlan mtu command output, the MTU_Mismatch column shows whether all the ports in the VLAN
have the same MTU. When yes appears in the column, it means that the VLAN has ports with different MTUs,
and packets that are switched from a port with a larger MTU to a port with a smaller MTU might be dropped.
If the VLAN does not have an SVI, the hyphen (-) symbol appears in the SVI_MTU column. If the
MTU-Mismatch column displays yes, the names of the ports with the MinMTU and the MaxMTU appear.
If you try to associate a private VLAN secondary VLAN with a primary VLAN before you define the secondary
VLAN, the secondary VLAN is not included in the show vlan private-vlan command output.
In the show vlan private-vlan type command output, a type displayed as normal means a VLAN that has a
private VLAN association but is not part of the private VLAN. For example, if you define and associate two
VLANs as primary and secondary VLANs and then delete the secondary VLAN configuration without
removing the association from the primary VLAN, the VLAN that was the secondary VLAN is shown as
normal in the display. In the show vlan private-vlan output, the primary and secondary VLAN pair is shown
as nonoperational.
Examples
This is an example of output from the show vlan command. See the table that follows for descriptions of the
fields in the display.
Device> show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/0/2, Gi1/0/3, Gi1/0/4
Gi1/0/5, Gi1/0/6, Gi1/0/7
Gi1/0/8, Gi1/0/9, Gi1/0/10
Gi1/0/11, Gi1/0/12, Gi1/0/13
Gi1/0/14, Gi1/0/15, Gi1/0/16
Gi1/0/17, Gi1/0/18, Gi1/0/19
Gi1/0/20, Gi1/0/21, Gi1/0/22
Gi1/0/23, Gi1/0/24, Gi1/0/25
Gi1/0/26, Gi1/0/27, Gi1/0/28
Gi1/0/29, Gi1/0/30, Gi1/0/31
Gi1/0/32, Gi1/0/33, Gi1/0/34
Gi1/0/35, Gi1/0/36, Gi1/0/37
Gi1/0/38, Gi1/0/39, Gi1/0/40
Gi1/0/41, Gi1/0/42, Gi1/0/43
Gi1/0/44, Gi1/0/45, Gi1/0/46
Gi1/0/47, Gi1/0/48
2 VLAN0002 active
40 vlan-40 active
300 VLAN0300 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
2 enet 100002 1500 - - - - - 0 0
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
1033
show vlan
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