New Features in Release 12.0(15)S

• 6-Port and 12-Port E3 Line Card Software Configuration on the Cisco 12000 Series Router

• ABR Type 3 LSA filtering

• Cisco Express Forwarding

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

• EIGRP Stub Routing

• IGMP Version 3

• MPLS Traffic Engineering Forwarding Adjacency

• NetFlow ToS-Based Router Aggregation

• Source Specific Multicast with IGMPv3, IGMP v3lite, and URD