VLAN mapping on Catalyst 4510?

Wagner, Patrick patrick.wagner at rga-net.de
Thu Jul 7 19:13:17 EDT 2016


I'm probably missing something really obvious, but I'm unable to 
configure VLAN mapping on a C4510R-E.

Sups are 2x WS-X4516-10GE , IOS version 15.0(2)SG10 EntServices

I've got a 1G SFP interface with the following config:

interface GigabitEthernet4/15
  switchport trunk encapsulation dot1q
  switchport trunk native vlan 4094
  switchport trunk allowed vlan 102
  switchport mode trunk
  switchport nonegotiate
  speed nonegotiate

- and I don't want vlan ID 102 there as this is already in use in this 
part of our infrastructure.

According to 
my Sups are supported and I should be able to just enter

(config-if)#*switchport vlan mapping *vlan-id translated-id

- but a "switchport vlan ?" only shows these subcommands:

(config-if)#switchport ?
   access         Set access mode characteristics of the interface
   autostate      Include or exclude this port from vlan link up calculation
   backup         Set backup for the interface
   block          Disable forwarding of unknown uni/multi cast addresses
   host           Set port host
   mode           Set trunking mode of the interface
   nonegotiate    Device will not engage in negotiation protocol on this 
   port-security  Security related command
   priority       Set appliance 802.1p priority
   private-vlan   Set the private VLAN configuration
   trunk          Set trunking characteristics of the interface
   voice          Voice appliance attributes

There's no 'mapping' to be found there.

The show command on the other hand, 'sh int gi4/15 vlan mapping' does 
exist, but obviously returns empty output as no mapping has been 
configured yet.

The document referred to above doesn't list any requirements for the 
mapping feature. The command reference for 4500 says the command is 
available since12.2(54)SG, , so what am I missing?


Patrick Wagner

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