Specifications

16
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
IP Packet Marking
Platforms: Cisco 12000 series
The IP Packet Marking feature is implemented on the PSA (hardware) and line card CPU (software) on
Engine 2 line cards. In the context of this feature, packet marking means setting or changing the 3-bit
precedence value in the Type of Service (ToS) field of IP packets that are received on an interface by a
user-configured value on the interface. The QoS treatment of the IP packets is then based on the new
value of the precedence bits.
Policy Routing on GSR Engine 0 and Engine 1
Platforms: Cisco 12000 series
Cisco IOS Release 12.0 S now supports policy routing on Engine 0 and Engine 1 line cards. NetFlow
with flow acceleration is currently not supported on GSR.
Quad OC-12c/STM-4c ATM Line Card
Platforms: Cisco 12000 series
The Quad OC-12c/STM-4c ATM line card provides the Cisco 12000 series product line with four
622-Mbps ATM interfaces. The card interfaces to the Cisco 12000 product line's switch fabric and
provides four OC-12c/STM-4c SC connectors for duplex single-mode or multimode SONET/SDH
connections. There are four ports, numbered 0 to 3, on each line card. Each port has its own set of Status
LEDs. Each SONET connection is concatenated, which provides for increased efficiency by eliminating
the need to partition the bandwidth. See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis12012/bfrcfig/7193atm.htm
New Features in Cisco IOS Release 12.0(12)S
Many of the new features in Cisco IOS Release 12.0 S were introduced in other Cisco IOS releases. For
more complete information, refer to the original release.
Class-Based Quality of Service MIB
Platforms: Cisco 7200 series, Cisco 7500/RSP series
The Class-Based Quality of Service MIB (Class-Based QoS MIB) provides read access to QoS
configurations. This MIB also provides QoS statistics information based on the Modular QoS
Command Line Interface (CLI), including information regarding class-map and policy-map parameters.
This Class-Based QoS MIB is actually two MIBs: CISCO-CLASS-BASED-QOS-MIB and
CISCO-CLASS-BASED-QOS-CAPABILITY-MIB.
To locate MIBs, use the Cisco Network Management Toolkit for MIBs tool on Cisco Connection Online
(CCO).