Josef Ackermann, CEO of Deutsche Bank

European leaders have begun gathering in Brussels for their emergency summit to solve the Greek debt crisis, and though the formal session does not begin until after noon local time, several meetings-before-the-meeting are already underway.

One of the most closely watched is a session between European negotiators and the International Institute of Finance, the consortium that represents the eurozone’s major banks. According to a senior European official, German and French government negotiators are meeting with IIF officials, including Josef Ackermann, the chief executive of Deutsche Bank who also serves as IIF chairman.