Cisco ASR 903 Release Notes

5
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Chapter
New Software Features in Cisco IOS XE Release 3.6S
• Class-based QoS MIB—This feature introduces support for the class-based QoS MIB. For details
about this feature, see
http://www.cisco.com/en/US/docs/wireless/asr_900/mib/guide/asr903mib.html
• Egress QoS Marking—This feature introduces support for QoS marking on egress interfaces. For
details about this feature, see
http://www.cisco.com/en/US/docs/wireless/asr_900/software/guide/chassis/Release3.6.0S/ASR90
3-Chassis-SW-36.html
• Egress QoS Policing—This feature introduces support for QoS policing on egress interfaces. For
details about this feature, see
http://www.cisco.com/en/US/docs/wireless/asr_900/software/guide/chassis/Release3.6.0S/ASR90
3-Chassis-SW-36.html
• E-OAM-CFM CCM Hardware Offload—The router automatically offloads processing of Continuity
Check (CC) messages if the CC interval is less than 1 second.
• H-VPLS N-PE Redundancy for MPLS Access—This feature allows user provider (U-PE) devices to
be dual-homed to network provider edge (N-PE) devices in a loop-free topology with MPLS as the
access/aggregation domain. For details about this feature, see:
– http://www.cisco.com/en/US/docs/ios-xml/ios/mp_l2_vpns/configuration/12-2sy/mp-hvpls-npe-
red.html
– http://www.cisco.com/en/US/docs/ios-xml/ios/mp_l2_vpns/configuration/xe-3s/mp-hvpls-npe-r
ed.html
• IPv6 Quality of Service Classification—This feature allows you to define traffic classes, create and
configure traffic policies (policy maps), and attach those traffic policies to interfaces. The
Cisco ASR 903 Router supports classification of IPv6 traffic based on DSCP or Precedence values
on ingress and egress interfaces. For details about this feature, see
– http://www.cisco.com/en/US/docs/ios-xml/ios/ipv6/configuration/xe-3s/ip6-qos.html
– http://www.cisco.com/en/US/docs/wireless/asr_900/software/guide/chassis/Release3.6.0S/ASR
903-Chassis-SW-36.html
• IPv6 Quality of Service Marking—This feature introduces support for marking IPv6 traffic with
DSCP or Precedence values. IPv6 QoS is supported on ingress and egress interfaces. For details
about this feature, see
– http://www.cisco.com/en/US/docs/ios/ios_xe/ipv6/configuration/guide/ip6-qos_xe.html
– http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-qos.html
– http://www.cisco.com/en/US/docs/wireless/asr_900/software/guide/chassis/Release3.6.0S/ASR
903-Chassis-SW-36.html
• ISIS IPv4 Loop Free Alternate Fast ReRoute (LFA FRR) for VPLS Core—IPFRR (IP Fast ReRoute)
is a set of technologies used in order to rapidly converge traffic flows around link and/or node
failures. For details about this feature, see
http://www.cisco.com/en/US/docs/ios/iproute_isis/configuration/guide/irs_ipv4_lfafrr.html
• ITU-T G.8032 Ethernet Ring Protection Switching—This feature implements protection switching
mechanisms for Ethernet layer ring topologies. This feature uses the G.8032 Ethernet Ring
Protection (ERP) protocol, defined in ITU-T G.8032, to provide protection for Ethernet traffic in a
ring topology, while ensuring that there are no loops within the ring at the Ethernet layer. The loops
are prevented by blocking either a pre-determined link or a failed link. For details about this feature,
see
http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-g8032-ering-pro.html

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English