"FEBRUARY 26, 2002 FROM: Market Data Operations
RE: IMPORTANT - Today's Slowdown of CME Quote Vendor Network
Today, the existing CME Quote Vendor Network experienced a slowdown in transmitting messages,
between 9:00 a.m. and 9:30 a.m., Chicago Time. The cause has been determined to be an increased
amount of GLOBEX market data that could not be sufficiently accommodated on the existing network
during that time frame. As you are aware, this is the primary reason for our planned conversion to the new
network
We are in the process of investigating ways to prevent this from recurring while we finalize our plans for
implementing the new network. One solution being considered is to transmit one of the major GLOBEXa2
products along with the RTH products, down port one of the existing network, rather than port three. Of
course, whatever GLOBEX product we choose, it would retain the Exchange ID of H, to indicate a
GLOBEX. Please let us know immediately if you see this as a problem. In addition to this proposal, other
interim options are being reviewed. As soon as a decision is made, we will notify you. Testing will then be
scheduled, and the change will be moved into production as soon as possible to prevent any future
slowdowns."