Ameritech NAP maintenance

["Mark A. Cnota" <mcnota () ameritech net>]

There is going to be a significant outage in Chicago, that I thought might
be of general interest to the NANOG community.

The Ameritech exchange point in Chicago is undergoing scheduled maintenance
this Sunday (3/14) early morning. Following is the text of the notice that
went out to customers on 2/22. 

Customers with additional questions are encouraged to contact me directly.

thanks,

Mark Cnota
Ameritech

====snip====

>      We, Ameritech Advanced Data Services, are informing all of our NAP
> customers that on Sunday, March 14th we are going to have a maintenance
> window from 12:00am to 6:00am CST that will be service affecting.  AADS
> is going to perform an ATM switch migration from the Lucent GCNS 2000 to
> an Ascend 550/500 platform.
>
>      During this migration your circuit will go down and for how long
> is not determinable at this time, but will be kept to a minimum.  In
> most cases all that is required is a cross connect change.  The PVC's
> that each customer has will be duplicated in the new switch and your
> VPI/VCI will not change.
>
>      In the event that you seem to be experiencing problems beyond the
> scheduled maintenance window, call the AADS NMC (NOC) at 1-800-972-3441
> with your Ameritech circuit ID and indicate that you are a NAP customer.
> International customers can call 1-847-562-7690 for trouble reporting.
>
> We appreciate your understanding and patience during this time.
>
> Sincerely,
> Kevin Peterson
> Operations Manager
> AADS

====snip====