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Cisco ASR 9000 Series Aggregation Services Routers

New and Changed Features in Cisco IOS XR Software, Release 5.1.x for Cisco ASR 9000 Series Aggregation Services Router

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New and Changed features for Cisco IOS XR Software Release 5.1.x

New and Changed features for Cisco IOS XR Software Release 5.1.x

This list summarizes the new and changed features for Cisco IOS XR Software Release 5.1.x.

To read additional information about Cisco IOS XR Software, Release 5.1.x features, see the Release Notes:

Release Notes

The latest versions of Cisco IOS XR Software, Release 5.1.x documents are available at:

Cisco IOS XR Software Documents

Configuration Guides

Command References

New and Changed Information for Release 5.1.x

Table 1 New and Changed Features for Cisco ASR 9000 Series Router:
Feature Changed in Release Where Documented
Routing Features    

BFD Dampening

Release 5.1

BFD over IRB

Release 5.1

EIGRP Multi-Instance

Release 5.1

Graceful Restart for OSPFv3

Release 5.1

OSPFv3 Sham Link Support for MPLS VPN

Release 5.1

Resilient Per-CE Label Allocation Mode

Release 5.1

User Defined Martian Check

Release 5.1

Interface and Hardware Component Features    

Ethernet Data Plane Loopback

Release 5.1

Sampled Traffic Mirroring

Release 5.1

Broadband Network Gateway Features    

DHCPv4 Server

Release 5.1

Traffic Mirroring (SPAN) on subscriber session

Release 5.1

Routing Support on Subscriber Sessions

Release 5.1

Idle Timeout for IPoE and PPPoE Sessions

Release 5.1

L2VPN and Ethernet Services Features    

Virtual Private LAN Services Label Switched Multicast

Release 5.1

Per-VLAN Rapid Spanning Tree

Release 5.1

MPLS Layer3 VPN Features    

No new features.

   
IP Addresses and Services Features    

IPV6 ABF Object Tracking

Release 5.1

DHCPV4 Server Support

Release 5.1

IPv6 - ND enhancement

Release 5.1

Refer Access List Commandschapter in Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Command Reference for information on the commands used for configuring IPv6 - ND enhancement.

MPLS Features    

P2MP-TE Auto-tunnels

Release 5.1

MPLS over IRB

Release 5.1

Set DF Bit

Release 5.1

Quality of Service Features    

Support for 16 Queues

Release 5.1

CGv6 Features    

No new features.

Release 5.1

NA

Multicast Features    

No new features.

Release 5.1

NA

System Management Features    

4arg

Release 5.1

SNMP updates

Release 5.1

System Monitoring Features    

No new features.

Release 5.1

NA

ROM Monitor Features    

No new features in this release

Release 5.1

NA

Netflow Features    

No new features in this release

Release 5.1

NA

System Security Features    

Storm Control Actions and BW based policing

Release 5.1

Implementing Traffic Storm Control under a VPLS bridge chapter Refer Traffic Storm Control commands in Cisco ASR 9000 Series Aggregation Services Router System Security Command Reference