Specifications

Release Notes for Cisco IOS Release 12.0 S

78-7130-11 Rev. B0

New and Changed Information

In a link layer network such as Frame Relay, the network sends messages with the forward explicit

congestion notification (FECN) or backward explicit congestion notification (BECN) if there is

congestion. With the dTS feature, the traffic shaping adaptive mode takes advantage of these signals

and adjusts the traffic descriptors, which approximates the rate to the available bandwidth along the

path.

Enhanced OC-48c/STM-16c Layer 3 Packet-over-SONET Line Card

Platforms: Cisco 12000 series

The OC-48c/STM-16c POS line card provides Cisco 12000 series routers with a single 2.5-Gbps POS

interface on a single card. The card interfaces with the switch fabric in the Cisco 12000 series router

and provides one OC-48c/STM-16c duplex SC or FC single-mode connection. This 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/6792oc48.htm

Gigabit Ethernet (PA-GE Support)

Platforms: Cisco 7200 series

The PA-GE is a single-port port adapter that, when combined with the appropriate fiber-optic cable and

a Gigabit Interface Converter (GBIC), provides one Gigabit Ethernet (GE) interface that is compliant

with the IEEE 802.3z specification. The GE interface on a PA-GE operates in full-duplex mode. The

PA-GE is supported by the Cisco 7200 VXR routers. Please note that this port adapter is not currently

supported by the fourth-generation Versatile Interface Processor (VIP4). See the following document

for further information:

http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/72vxpa/7188page/index.htm

ISIS Over ISL

Platforms: Cisco 7200 series, Cisco 7500/RSP series

With release 12.0(7)S, Intermediate System-to-Intermediate System (ISIS), Connectionless Network

Service (CLNS), and Interior Gateway Routing Protocol (IGRP) configuration commands are now

recognized on an Inter-Switch Link (ISL) virtual LAN (VLAN) subinterface.

MPLS Switching Support for Gigabit Ethernet

Platforms: Cisco 12000 series

Basic tag/Multiprotocol Label Switching (MPLS) switching is now supported for Gigabit Ethernet (GE)

line cards for the Cisco 12000 series Gigabit Switch Router (GSR).

NetFlow Support for Gigabit Ethernet

Platforms: Cisco 12000 series

The NetFlow feature is now a supported feature for Gigabit Ethernet (GE) line cards for the Cisco 12000

series Gigabit Switch Router (GSR).