RE: optical gear cooling requirements

[<Vinny_Abello () Dell com>]

Dell - Internal Use - Confidential 

Was forced to get an Ascend Superpipe to work with a PM4 for one of our customers ages ago. Two ISDN lines... as soon 
as the 4th channel was thrown into multilink, it would drop the 3rd channel. >:O

Finally got it working after a lot of trial and error with stupid settings on the Ascend garbage. It was clearly a bug 
but I forge the specific setting that caused that to happen.

-Vinny

-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Nick Hilliard
Sent: Wednesday, March 4, 2015 4:54 PM
To: nanog () nanog org
Subject: Re: optical gear cooling requirements

On 04/03/2015 21:33, Jay Hennigan wrote:
> We used Livingston Portmaster 3 back in the day. Front to back 
> ventilation, ran cool as a cucumber, plug it in and it just worked.
> Awesome gear until Lucent bought the company to kill the product in 
> favor of their Ascend TNT space heaters.

Ascend kit was a horror to deal with.  I ran isdn dialin on some of their lower end kit at one stage.  It only worked 
because I put it on a power timer which power-cycled it twice a day.

+1 on portmasters, though.

Nick