Any 1U - 2U Ethernet switches that can handle 4K VLANs?
Scott McGrath
mcgrath at fas.harvard.edu
Mon Jan 26 21:00:15 UTC 2004
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 sthaug at nethelp.no 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, sthaug at nethelp.no
>
More information about the NANOG
mailing list