... IOS.Cisco IOS STEDs are expensive to maintain as they require a separate management team includingprogram management, source management, build groups, regression test facilities, documentation, and ... 242.1.1. Cisco Main Release Rebuild Numbering System. ............................................................ 252.1.2. Cisco IOS ED Rebuild Numbering System ..................................................................... ... 8 Cisco IOS Reference Guide by Mack M. Coulibaly Cisco Systems, Inc.Page 9 Cisco IOS Reference Guide by Mack M. Coulibaly Cisco Systems, Inc.1.3 ScopeFigure 1.1 is a sample page of the...