Release Notes for the Cisco ASR 900 Series Routers XE 3S

A900-RSP3 Modules and Interface Modules

The A900-RSP3C-400-S RSP modules is introduced on the ASR 900 Series Routers.

The following interface modules are introduced on the Cisco ASR 900 Series Routers:

• 8-port 10 Gigabit Ethernet Interface Module (8X10GE)
• 1-port 100 Gigabit Ethernet Interface Module (1X100GE)
• 2-port 40 Gigabit Ethernet QSFP Interface Module (2X40GE)

For information on supported interface modules, part numbers and slot restrictions, see Hardware Supported.

For information on installation, see

• Cisco ASR 903 Series Aggregation Services Router Hardware Installation Guide
• Cisco ASR 902 Aggregation Services Router Hardware Installation Guide

DC Power Supply

The A900-PWR1200-D power supply is introduced on the ASR 900 Series Router.

For information on installation, see

• Cisco ASR 903 Series Aggregation Services Router Hardware Installation Guide
• Cisco ASR 902 Aggregation Services Router Hardware Installation Guide

AC Power Supply

The A900-PWR1200-A power supply is introduced on the ASR 900 Series Router.

For information on installation, see

• Cisco ASR 903 Series Aggregation Services Router Hardware Installation Guide
• Cisco ASR 902 Aggregation Services Router Hardware Installation Guide

Cisco ASR 907 Series Aggregation Services Router

For more information, see the Hardware Installation Guide at: http://www.cisco.com/c/en/us/support/routers/asr-903-series-aggregation-services-routers/products-installation-guides-list.html

Policy-Based Routing

This feature provides a way for a device to put packets through a route map before routing them.

The route map determines which packets are routed to which device. You might enable policy-based routing (PBR) if you want some packets to be routed a way other than the obvious shortest path. PBR provides control over routing by extending and complementing the existing mechanisms provided by routing protocols. Possible applications for PBR are to provide equal access, protocol-sensitive routing, source-sensitive routing, routing based on interactive versus batch traffic, and routing based on dedicated links.

For more information, see IP Routing: Protocol-Independent Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series)

Segment Routing (IS-IS)

The Segment Routing—ISIS v4 node SID feature provides support for segment routing on IS-IS networks.

For more information, see IP Routing: Protocol-Independent Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series).

MPLS MTU over GRE

This feature allows you to set the MPLS MTU size in GRE tunnels to the maximum size besides the current default size.

For more information, see MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series).

Circuit Emulation Service over UDP

Circuit Emulation Service over Packet-Switched Network (CESoPSN) and Structure-agnostic TDM over Packet (SAToP) are supported as a part of Circuit Emulation Service over UDP (CEMoUDP).

The feature is supported on 8T1/E1 interface module, 16T1/E1 interface module, and OC3 interface module on the router. Circuit Emulation Service over UDP is not supported for 32-port E1/T1 interface module (A900-IMA32D).

For more information, see MPLS Basic Configuration Guide, Cisco IOS XE Release 3S (ASR 900) .

IP SLA - Service Performance Testing

This feature, Y.1564, is an Ethernet service activation test methodology, and is the standard for turning up, installing, and troubleshooting Ethernet and IP based services. Y.1564 is the only standard test methodology that allows a complete validation of Ethernet service-level agreements (SLAs) in a single test. Service performance testing is designed to measure the ability of a Device Under Test (DUT) or a network under test to properly forward traffic in different states.

For more information, see IP SLAs Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900).

SLM over VPLS

Synthetic loss measurement (SLM) is part of the ITU-T Y.1731 standard used to periodically measure Frame Loss and Forward Loss Ratio (FLR) between a pair of point to point MEPs. This feature enables the configuration of SLM over VPLS.

For more information, see IP SLAs Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900).

Microwave ACM Extensions

Starting with Cisco IOS Release 3.16, adaptive bandwidth with multi-hop extensions are supported on the ASR 903 RSP2 module. Multi-hop extensions help identify the degraded links in the topology.

The following command is modified: event ethernet microwave sd interface.

For more information, see Carrier Ethernet Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series).

Pseudowire Group Status Generation

This release introduces support for pseudowire group status generation.

The Pseudowire Group Message Generation feature assigns pseudowire group id for a group of pseudowires and sends wildcard status notifications or label withdrawal messages for a group.

For more information, see Asynchronous Transfer Mode Configuration Guide, Cisco IOS XE Release 3S (ASR 900 Series Routers).