Cisco ASR 903 Release Notes

4
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Chapter
New Software Features in Cisco IOS XE Release 3.8(0)S
• Network Virtualization Service—This Release introduces support for the Satellite Network
Virtualization (nV) service or the Satellite Switching System, which enables you to configure a
topology in which satellite devices complement one or more Cisco ASR 9000 Series routers in order
to collectively realize a single virtual switching system. In this system, the satellite switches act
under the management control of the Cisco ASR 9000 Series Aggregation Services Routers. The
complete configuration and management of the satellite chassis and features is performed through
the control plane and management plane of the Cisco ASR 9000 Series Router. For more information
about how to configure nV on the ASR 9000 and the satellite devices, see
http://www.cisco.com/en/US/partner/docs/routers/asr9000/software/asr9k_r4.2/interfaces/configur
ation/guide/hc42satl.html
• Packet over SONET—This release introduces support for Packet over SONET (PoS) interfaces on
the OC-3 interface module. For more information on how to configure PoS interfaces, see the
Cisco ASR 903 Chassis Configuration Guide, Release 3.8.
• QoS on PoS Interfaces—Release 3.8 introduces support for QoS features on egress PoS interfaces
using MLPPP bundles. For more information about configuring QoS on MLPPP interfaces, see the
Cisco ASR 903 Chassis Configuration Guide, Release 3.8.
• QoS Features—Release 3.8 introduces support for the following QoS features:
– queue-limit percent command— Allows you to specify the queue limit (size) for a class in as
a percentage value.
– Higher Queue Limit Size— Release 3.8 extends the maximum byte value queue-limit-size
argument used with the queue-limit command. The previous maximum value was 491520
bytes; the new value is 2 MB.
– Release 3.8 enhances the show policy-map interface command to display the default
queue-limit.
For more information about the Release 3.8 QoS features, see the QoS chapter of the Cisco ASR 903
Chassis Configuration Guide, Release 3.8.
• SONET Mode—This release introduces support for SONET mode on the OC-3 interface module.
For more information on how to configure PoS interfaces, see the Cisco ASR 903 Chassis
Configuration Guide, Release 3.8.
• Synthetic Frame Loss Measurement—This release introduces support for Synthetic Frame Loss
Measurement for Ethernet OAM. For more information about this feature, see
http://www.cisco.com/en/US/docs/ios-xml/ios/ipsla/configuration/xe-3s/asr903/sla_mether3_y173
1.html
• TCP path MTU Support—This release introduces support for BGP TCP Path MTU Discovery. For
more information about this feature, see
http://www.cisco.com/en/US/docs/ios/iproute_bgp/configuration/guide/irg_neighbor.html
• Telecom Profile Support—Release 3.8 introduces support for telecom profiles, which allow you to
configure a network clock to use the G.8265.1 recommendations for establishing PTP sessions,
determining the best master clock, handling SSM, and mapping PTP classes. For information about
how to configure telecom profiles, see the Cisco ASR 903 Chassis Configuration Guide, Release 3.8.
• Trunk EFPs on Port-Channel Interfaces—This release adds support for trunk EFPs on port-channel
interfaces, as shown in the following configuration:
!
interface port-channel 4
service instance 1 ethernet
encapsulation untagged
l2protocol peer lacp
bridge-domain 1
!

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English