NOTICE DATE: March 24, 2008 NOTICE TYPE: M-A032408-01 Outage - Retail/Wholesale CLASSIFICATION: Public SHORT DESCRIPTION: Texas Market Link (TML) experienced an outage on March 21, 2008. INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Friday, March 21, 2008 from 6:51 PM to 7:25 PM LONG DESCRIPTION: Due to a Lightweight Directory Access Protocol (LDAP) failure, ERCOT experienced an outage of Texas Market Link (TML), Friday, March 21, 2008 from 6:51 PM to 7:25 PM. CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via e-mail at [log in to unmask] <BLOCKED::mailto:[log in to unmask]> . If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com <http://lists.ercot.com/> DP/JA