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Re: Link Status encodings




Boaz,

Slide 5 of taborek_2_1100.pdf says:

Required In Both Directions

 Link Status
RS "Top Level" & Link Elements (E.g. XGXS, etc.)
1 = Link Up, OK to Send Packets
0 = Link Down, Block Packets

 Link is Up When:
 PHY is Reset and Operational
 All Link Receivers Receiving (Signal Detect)
 No Link Error Conditions are Being Reported
 All CODECs and Framers Are In Sync

 Link Status is AND of All PHY/Link OK Conditions
 Link Status OK = All Signals OK & All Protocols OK

Therefore, whenever the MAC gets around to recognizing the link fault
condition, which it determines indirectly by noting Link Down, it will
stop packet transmission.

Best Regards,
Rich
   
--

Boaz Shahar wrote:
> 
> "Your asumption is not in line..." etc. means that the MAC/RS will stop
> packet  transmission when a fault is detected, or it means that the MAC/RS
> will continue to transmit packets if it has data to transmit?
> 
> Boaz
> 
> > -----Original Message-----
> > From: Rich Taborek [mailto:rtaborek@xxxxxxxxxxxxx]
> > Sent: Thursday, November 30, 2000 9:45 AM
> > To: HSSG
> > Subject: Re: Link Status encodings
> >
> >
> >
> > Boaz,
> >
> > Your assumption is not in line with that agreed upon by the P802.3ae
> > Task Force by motion. Please see taborek_2_1100.pdf slide 23: "Link
> > Status & Packet Transmission Is Mutually Exclusive". Shimon Muller was
> > very adamant about including this point and will insure that it is
> > enforced.
> >
> > Best Regards,
> > Rich
> >
> > --
> >
> > Boaz Shahar wrote:
> > >
> > > Assuming that the MAC/RS does not stop packet transmission
> > while it sends RF
> > > indication, and that there is no /A/ column because the IPG
> > is minimal:
> > > Where will the POS be transmitted over the XAUI?
                                   
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Richard Taborek Sr.                 Phone: 408-845-6102       
Chief Technology Officer             Cell: 408-832-3957
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