Selected ISP Support > Covad / covad.net > Firmware rasied noise margins on 643

reply to Bill_MI

Re: Firmware rasied noise margins on 643

Well, GDM And CCarlin - you have the latest for Covad on the P643 - V2.50(AY.4). I found out Earthlink hasn't officially blessed the latest for my P645 (which I got online anyway) which is V2.50(EK.4).

But to the best of his knowledge, no ADSL parameters are invloved in these upgrades. Two people claiming a few more db of noise margin is significant, though.

CCarlin - I'm really curious how your performance is on the new f/w. I may want to have a backup modem before attempting to FLASH my P645 - these ISP-unique versions make me nervous.

reply to gdm
Well, I did it anyway. I'll have days of data for noise margins to compare.

Hey! Looky this...

was:
ZyNOS S/W Version: V2.50(EK.3) | 8/31/2001
ADSL Chipset Vendor: Alcatel, Version 3.8.124

now:
ZyNOS F/W Version: V2.50(EK.4) | 9/19/2002
ADSL Chipset Vendor: Alcatel, Version 3.8.164

A distinct Alcatel revision - maybe there is some microcode updated in the phone line stuff. At least I'm not down!

EDIT:
Holy Cow! It is definitely a jump in noise margin:

1/2 hour ago:
noise margin downstream: 10.0 db

now:
noise margin downstream: 13.5 db

But will it equate with stability in FastPath? A step in the right direction is indicated.
[text was edited by author 2003-04-07 20:37:34]

Bill what's the noise margins?

Sorry, I edited after excitement! I have lots of noise margin data (every hour since last April... no kidding!).

I'll be able to plot noise margin (downstream is the limiting factor) for a week before and a week after, I hope.
[text was edited by author 2003-04-07 20:41:45]