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    Navigation: All forums > Ethmac > Message List > Message Post

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    From: jcwh@s...
    Date: Thu, 4 Apr 2002 11:51:56 +0200
    Subject: [ethmac] how about VLAN?
    Top

    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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