isl only expandes it while its in the switch network ...ie switch to switch
...when it reaches its port of destination it strips the isl ....just wanted
to be sure...
steve (cockney friend...etc.etc)
>From: Thomas Peroutka <[EMAIL PROTECTED]>
>Reply-To: Thomas Peroutka <[EMAIL PROTECTED]>
>To: "Dove" <[EMAIL PROTECTED]>
>CC: [EMAIL PROTECTED]
>Subject: Re: Question about ISL and 802.1Q encapsulation
>Date: Wed, 27 Sep 2000 10:33:46 +0200
>
>Hallo Dove,
>
>Wednesday, September 27, 2000, 8:28:21 AM, you wrote:
>
>D> Hi,
>
>D> I have a question about ISL and 802.1Q encapsulation/tagging. As I know,
>ISL
>D> will encapsulate a frame with adding 26 bytes to header and 4 bytes to
>D> trailer; and 802.1Q will modify the existing header and add 4 bytes to
>it.
>D> My question is: if the frame is already in its maximum size (i.e. 1,518
>D> byte), after ISL or 802.1Q encapsulation/tagging, the frame size will be
>D> greater than the ethernet maximum size. Will it cut the frame into 2
>parts
>D> or ignore the frame size checking?
>
>D> Regards.
>D> dovelet
>
>
>D> **NOTE: New CCNA/CCDA List has been formed. For more information go to
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>
>
>ISL expands the frame size whereas 802.1Q puts its header in the
>payload and keeps track of Ethernet definitions.
>
>--
>Viele Gr�sse/ Best regards,
> Thomas mailto:[EMAIL PROTECTED]
>
>
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