Hari and train-up sequences
The purpose of this note is to clear up confusion regarding Hari, a
proposed 4-lane serial interface for 10 GbE and train-up sequences.
It should be clear that NO TRAINING SEQUENCES are proposed for Hari.
Both the "Hari Coding Objectives" presentation
(http://grouper.ieee.org/groups/802/3/10G_study/public/nov99/taborek_1_1199.pdf)
and "Word Striping on Multiple Serial Lanes"
http://grouper.ieee.org/groups/802/3/10G_study/public/nov99/ritter_1_1199.pdf)
make a point of noting that no train-up is required Hari to deskew.
The Hari Coding Objectives proposal uses the standard Idle sequence
proposed by Howard Frazier of Cisco to deskew multiple parallel lanes
while simultaneously acquiring code-group synchronization on all lanes.
--
Best regards,
Rich
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Richard Taborek Sr. 1441 Walnut Dr. Campbell, CA 95008 USA
Tel: 408-370-9233 Cell: 408-832-3957 Fax: 408-374-3645
Email: rtaborek@xxxxxxxxxxxxx