NOTICE DATE:  June 2, 2013

NOTICE TYPE:  M-A052313-03 Outage Retail/Wholesale

SHORT DESCRIPTION:  Scheduled Maintenance Outage and Changes to ERCOT Public IP Addresses

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  Sunday June 2, 2013

LONG DESCRIPTION:  The outage is complete and all systems have been returned to service.

ACTION REQUIRED:  During the outage ERCOT changed the public IP address of some market facing services.  This change could impact market participants' ability to access those services, or receive responses from them.

NOTE: All Market Participants that transmit files via NAESB must ensure their systems can send and receive transactions from the new IP address (66.128.17.102).

The specific changes to the services are listed below.

MarkeTrak

https://marketrak.ercot.com:8443/tmtrack/tmtrack.dll - no change

New Public IP: 66.128.17.187

Former Public IP: 66.128.16.157

Port: 8443 - no change

NAESB

https://naesb.ercot.com:7403/ipnet/naesb - no change

New Public IP: 66.128.17.102

Former Public IP: 66.128.16.102

Port: 7403 - no change



ETOD/Retail Testing Website

https://etod.ercot.com/ - no change

New Public IP: 66.128.17.159

Former Public IP: 66.128.16.172



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 email at [log in to unmask]<mailto:[log in to unmask]>.

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