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[ethmac] how about VLAN?

To: ethmac@opencores.org
Subject: [ethmac] how about VLAN?
From: jcwh@sina.com
Date: Thu, 4 Apr 2002 11:51:56 +0200
Reply-To: ethmac@opencores.org
Sender: owner-ethmac@opencores.org

Is someone going to implement VLAN tag insertion and extraction in this 
mac controller?

when inserting /extracting the VLAN tag, CRC should be calculated once 
more.

Can we just change the old crc on some kind of spcial arithmetic ,while 
not "crc through" the whole frame?

does someone here know this kind of arithmetic?

thanks

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