From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Fri Apr 05 2002 - 23:25:17 GMT-3
Any other combination need conversion, let said you see the following address
and you need to do CAN to NON-CAN conversion :
00-19-C3-58-5A-34
00,C3,5A no covcersion is require.
19,58,34 need conversion, there are several way to do this, I know two of it:
1.1 write it down in 8 bit binary value from left to right for each byte.
19 => 0001 1001.
1.2 write the result value from right to left.
1001 1000 => 98
2.1 Write the mirror value of each hex digit(19, 1->8, 9->9 =>89)
2.2 write teh result from rigt to left for each byte. (89 => 98)
So the 00-19-C3-58-5A-34
=====> 00-98-C3-1A-5A-2C
Parry Chua
-----Original Message-----
From: david [mailto:barbedwireblack@yahoo.com]
Sent: Friday, April 05, 2002 11:33 PM
To: ccielab@groupstudy.com
Subject: RE: hex conversion
in what situations do u need to do this conversion?
--- David Huskey <dhuskey@bpop.com> wrote:
>
>
> >>> "Chua, Parry" <Parry.Chua@compaq.com> 04/05/02
> 12:04AM >>>
> Another choice, if you see the following byte
> patterns, no conversion is needed for CAN to NON-CAN
> , each 4 bits in hex is also the mirror of the
> other,
> eg 18 = 0001 1000, 66 = 0110 0110, A5 = 1010 0101
>
> 00, 18, 24, 3C, 42, 5A, 66, 7E, 81, 99, A5, BD, C3,
> DB, E7, FF
>
> Parry Chua
>
> -----Original Message-----
> From: Mike L. Chase
> [mailto:mchase@chasenetworks.com]
> Sent: Friday, April 05, 2002 1:34 PM
> To: Tu Nguyen; jeff gercken; ccielab@groupstudy.com
> Subject: RE: hex conversion
>
>
> Keep it simple...
>
> CANONICAL - NON-CANONICAL
>
> quick converter :
>
> Ethernet MAC Addresses (canonical format)
> 0 1 2 3 4 5 6 7 8 9 A B C D E F becomes
> 0 8 4 C 2 A 6 E 1 9 5 D 3 B 7 F
> Token Ring Address (non-canonical format)
>
>
> Here is an example on Ethernet according
> to the above rule:
>
> 1. Ethernet MAC Addresses (canonical format)
> 0200.4556.1140
>
> 2. Intermediate step, flip the bits (take it 2
> characters at a time, reverse them and then you get
> step3)
> 0400.2AA6.8820
>
> 3. Final Token Ring Address (non-canonical format)
> 4000.A26A.8802
>
> Rgds/
>
> Mike L. Chase, MCSE, CCIE# 7226
> http://www.chasenetworks.com
> http://ipnetworks.info
> Oceanside, California USA
> E: mchase@chasenetworks.com
>
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