802.3ae Clause 49 Sync Header


I'm wondering if anyone would know as to where the two bits of the Sync Headers are located after they've gone through the Gearbox. Although the two bits will not be in the same bits location every clock cycle after the Gearbox, my understanding is that these two bits are always adjacent to each other.

When reading one of the UNH's documentation, it doesn't appear that my assumption is true (i.e. the two bits may be anywhere). What does the

3rd bullet in page 24 of this presentation means:

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Thanks for your help,


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