Re: 664b/66b frame alignment in SONET payload

["Erik Trounce" <erikt@xxxxxxxxxxxxxxxxxx>]

Rich,

Thanks for the response (and to the others).  Of course you're right,
I have been concentrating too much on WAN mode and forgot to
consider LAN mode.

Regards,
Erik

In message "664b/66b frame alignment in SONET payload", Rich Taborek
writes:

>
>Erik,
>
>This sounds like a reasonable approach insofar as WIS frame delineation
goes.
>However, the 64B/66B PCS sits "above" the WIS and may not know or care
that it
>is in WAN mode. Therefore, 66B codes at the receiver may be aligned on
odd-bit
>as well as even-bit boundaries and the reduction in valid sync
locations from 66
>to 33 seems negligible.
>
>Best Regards,
>Rich