I accidentally reverted your contribution to Ethernet when I hit the TW rollback button by mistake. But then I noticed you hadn't said why you changed the number, so rather than fix it, I'll leave it to you to re-do it with a comment if it's right.
Dicklyon (
talk)
20:48, 27 January 2008 (UTC)reply
Thanks. But you may have uncovered a notational ambiguity; take a look at
this Agilent PDF. It says "The frames are transmitted from left to right, least significant bit first." and "11010101 for the SFD." I think this is correct and that the "11" comes last in time order, which means it's in the MSBs of the octet. Maybe you can verify and clarify.
Dicklyon (
talk)
21:24, 27 January 2008 (UTC)reply
I think we are saying the same thing, what if it stated 010101011 is the bit pattern as the SFD must end with 11.
I just verified in "Computer Networking A Top-Down Approach" by James Kurose, and Keith W Ross, they state 10101011 is the last byte of the 8 byte preamble page 473, sixth edition. I think this can also be found
We really need the 11 listed and sourced to the IEEE 802.3 spec. It really should be in the table with explanation on LSB MSB above.
The bit pattern end with 11 is important to display as last 2 bits of the eight byte are always consecutive 11. Even if the preamble had been corrupted, the following destination address can be identified correctly. The table needs to reflect that the last two bits are 11. The authoritative source is 802.3 IEEE standard, and we need to source it and table should reflect it Kevmcs (talk) 23:56, 27 January 2008 (UTC)
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Ethernet
I accidentally reverted your contribution to Ethernet when I hit the TW rollback button by mistake. But then I noticed you hadn't said why you changed the number, so rather than fix it, I'll leave it to you to re-do it with a comment if it's right.
Dicklyon (
talk)
20:48, 27 January 2008 (UTC)reply
Thanks. But you may have uncovered a notational ambiguity; take a look at
this Agilent PDF. It says "The frames are transmitted from left to right, least significant bit first." and "11010101 for the SFD." I think this is correct and that the "11" comes last in time order, which means it's in the MSBs of the octet. Maybe you can verify and clarify.
Dicklyon (
talk)
21:24, 27 January 2008 (UTC)reply
I think we are saying the same thing, what if it stated 010101011 is the bit pattern as the SFD must end with 11.
I just verified in "Computer Networking A Top-Down Approach" by James Kurose, and Keith W Ross, they state 10101011 is the last byte of the 8 byte preamble page 473, sixth edition. I think this can also be found
We really need the 11 listed and sourced to the IEEE 802.3 spec. It really should be in the table with explanation on LSB MSB above.
The bit pattern end with 11 is important to display as last 2 bits of the eight byte are always consecutive 11. Even if the preamble had been corrupted, the following destination address can be identified correctly. The table needs to reflect that the last two bits are 11. The authoritative source is 802.3 IEEE standard, and we need to source it and table should reflect it Kevmcs (talk) 23:56, 27 January 2008 (UTC)