Both the ISL _and_ the Dotq headers are stripped off at the trunk interface so they _both_ change the packet size but neither alters the payload.
Scott C. McGrath
On Mon, 26 Jan 2004 [EMAIL PROTECTED] wrote:
>
> > ISL _DOES NOT CHANGE_ packet size.
>
> An 802.1q tag adds 4 bytes to the Ethernet frame.
>
> ISL encapsulation adds 30 bytes to the Ethernet frame.
>
> Steinar Haug, Nethelp consulting, [EMAIL PROTECTED]
>
