[c-nsp] VLAN tagging on the 2960

[Phil Bedard]

Some of the cisco switches have a global command like "vlan dot1q tag  
native" that tags native vlan traffic, not sure about the 2960.   That  
would accomplish what you want.

Phil



On Feb 7, 2008, at 12:20 PM, Kiecker, Alan W wrote:

> I need to set up ports on a 2960-24TC-L so that outbound ports retain
> the VLAN tag.
>
> I have configured the ports as trunks with VLAN IDs 7 and 13.  The
> native VLAN is 13.  This should tag any inbound untagged packets with
> VLAN 13.  This is what I want, but outbound packets are a different
> story.
>
> The command reference states in the Usage Guidelines for the  
> "switchport
> trunk" command that "If a packet has a VLAN ID that is the same as the
> sending-port native VLAN ID, the packet is sent without a tag;
> otherwise, the switch sends the packet with a tag."
>
> My interpretation of this is that outbound packets with VLAN ID 7 will
> be sent with the tag, but packets with VLAN ID 13 will be sent without
> the tag.
>
> Is there anyway to not have this tag removed?
>
> In case it is of any use these are the commands that I am using:
>
> interface FastEthernet0/1
> switchport mode trunk
> switchport nonegotiate
> switchport trunk native vlan 13
> switchport trunk allowed vlan none
> switchport trunk allowed vlan add 7,13
>
>
> Thanks!
>
> == al
>
>
>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/