Further to an announcement on June 9, 2010 NYSE Technologies would like to remind clients that in August 2010, NYSE Euronext plans to begin trading of the NYSE Classic Market in the new Mahwah state-of-the-art data center followed by Arca Markets in early 2011. In order to adhere to this timeline, we request that your firm prioritize your support of our moves as outlined below.

This notice provides important information to prepare you for your migration to the new data center.


Summary of changes

* New source IP addresses for all real-time data products - the following Source IP address should be added to firewall settings
o 159.125.70.0/26 (Pod 1: Multicast A)
o 159.125.70.64/26 (Pod 1: Multicast B)
o 159.125.70.128/26 (Pod 2: Multicast A)
o 159.125.70.192/26 (Pod 2: Multicast B)

* New Retransmission Request IP addresses for all products - the following new Retransmission Request IP addresses should be used in combination with the existing Retransmission request port numbers.
o 159.125.76.1/28 (Primary)
o 159.125.76.161/28 (Secondary)


What firms need to do:

• Connectivity testing of new Source IP addresses to the new data center is available every Tuesday and Thursday night from 7pm to 9pm on Test IP addresses. Canned data will be replayed during the Tuesday and Thursday night testing. Regular Saturday testing will be available from 8am to 12pm with only heartbeats being disseminated on production IPs
• Check www.nyxdata.com/capacity for the latest product capacity estimates to ensure you have enough bandwidth
• If firms need to make changes to their connectivity, please contact sftiorders@nyx.com

Mahwah Data Center Migration Timeline:

• 7/19: NYSE/NYSE Amex LRP
• 7/20: NYSE/NYSE Order Imbalances
• 7/21: NYSE/NYSE Amex Alerts
• 7/22: NYSE/NYSE Amex ReTrac
• 7/23: NYSE/NYSE Amex ProTrac
• 7/27: NYSE/NYSE Amex Trades
• 7/28: NYSE/NYSE Amex Real-Time Reference Prices
• 8/16: NYSE/NYSE Amex OpenBook Aggregated, NYSE/NYSE Amex OpenBook Ultra and NYSE/NYSE Amex BBO
• 8/17: 2 MetroTech/ 55 Water Retransmission Request IPs will be shut down. All firms will need to use only the new Mahwah Retrans IPs and Source IP addresses from this point forward. Both old and new Source IPs and Retrans Request IP addresses will work until 8/17/2010 to ease transition.

Testing:

• Testing of the new Source IP addresses to the new data center is available every Tuesday and Thursday night from 7pm to 9pm on Test IP addresses. Canned data will be replayed during the Tuesday and Thursday night testing.
• Weekly Saturday testing will be available from 8am to 12pm with only heartbeats being disseminated on production IPs.
• Industry production weekend tests are scheduled forJuly 17, July 24, and July 31; Canned data will be disseminated on production IP addresses during those weekend tests.

Further product information, including additional technical information, is available on www.nyxdata.com:

NYSE products - www.nyxdata.com/nyse
NYSE Amex products - www.nyxdata.com/Data-Products/NYSE-Amex
Datafeed IP Addresses - www.nyxdata.com/ipaddresses
Product Timeline -www.nyxdata.com/Data-Products/Release-Schedule

Help and Support:
For further information, clients are advised to contact their Account Manager. For technical support, please contact the connectivity support desk.

Account Management Team
Telephone: +1 212 656 3800
Email: info@nyxdata.com

Connectivity Support
Telephone: 888-689-7739(Toll free, US only)
Email: connectivity@nyx.com


Best regards

Global Data Products
NYSE Technologies
www.nyxdata.com