New Features in Release 12.1(5a)E

• Cisco 7500 Single Line Card Reload
  12.1(5a)E

• IOS Server Load Balancing, 12.1(5a)E

• Multi-ISA

• PA-MC-2T3+ Phase-II (T3 subrate)
  12.1(5a)E

• Catalyst 6500 Series Cisco IOS Software Documentation, 12.1E
  For Cisco IOS Release 12.1(27b)E and all earlier 12.1E releases

• Differentiated Services Compliant Distributed Weighted Random Early Detection
  This feature is commonly known as DiffServ Compliant DWRED