Cisco Systems A9014CFD manual Xlvi

Chapter

Document
Number	Date	Change Summary
OL-23826-09	November 2013	• 1588v2 Hybrid Clock—To improve the clock quality, you
		can either improve the oscillator class or reduce the number
		of hops between the master and the slave. In PTP hybrid
		mode, the oscillator class is improved by using a physical
		layer clock (sourced from a stratum-1 clock) instead of the
		available internal oscillator. The PTP hybrid mode is
		supported for ordinary clock (in slave mode only) and
		boundary clock.
		• Dual REP Edge No-Neighbor—Effective with Cisco IOS
		release 15.4.(1)S, you can configure the non-REP switch
		facing ports on a single device as dual edge no-neighbor
		ports. These ports inherit all properties of edge ports, and
		overcome the limitation of not converging quickly during a
		failure.
		• EoMPLS/TDM Pseudowire Redundancy over
		FRR—Effective with Cisco IOS Release 15.4(1)S, support
		was added for EoMPLS/TDM pseudowire redundancy over
		FRR.
		• Ethernet loopback (NOSTG CLI and terminal loopback
		)—Effective with Cisco IOS Release 15.4(1)S, the Cisco
		ASR 901 supports internal loopback on Bridge-domain
		EFPs.
		• IPv4 Multicast—Describes how to configure IP multicast in
		an IPv4 network. IP multicast is an efficient way to use
		network resources, especially for bandwidth-intensive
		services such as audio and video.
		• IPv6 Multicast—Describes how to configure basic IP
		multicast in an IPv6 network.
		• Extending QoS over MLPPP Interface—Effective with
		Cisco IOS Release 15.4(1)S, the QoS functionality on the
		MLPPP interface is extended to support:
		– QoS for MPLS over MLPPP
		– QoS for CPU generated traffic
		• Redundant PTP instances as per G.8265.1—PTP redundancy
		is an implementation on different clock nodes by which the
		PTP slave clock node interacts with multiple master ports
		such as grand master, boundary clock nodes, and so on. A
		new servo mode is defined under PTP to support high PDV
		scenarios (when the PDVs exceed G.8261 standard profiles).

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

-xlvi OL-23826-09