 
            
            
            
            
                25 May
                
                    2010
                
            
            
                25 May
                
                '10
                
            
            
            
        
    
                6:05 p.m.
            
        Surely not. I can remember lingo in the IPv6 spec that specifically advised vendors to NOT make any assumptions about specific prefix lengths and base performance optimizations on those.
I remember that text. Do you think they listened? ;) Sander