New Features in Cisco IOS XE 3.12S Releases
This chapter provides information about the new features introduced in the Cisco IOS XE Release 3.12S.
This chapter includes the following sections:
New Hardware Features in Cisco IOS XE Release 3.12S
The following features are introduced in Cisco IOS XE Release 3.12S.
Cisco ASR 902 Router Chassis
The compact 2-rack-unit (RU) routers provides high service scale and flexible hardware configuration.The routers support up to four interface modules. The router supports both AC and DC redundant power supplies. For installation information, see the Cisco ASR 902 Hardware Installation Guide.
New Software Features in Cisco IOS XE Release 3.12S
The following features are introduced in Cisco IOS Release 3.12S.
IP SLAs TWAMP Responder
The IETF Two-Way Active Measurement Protocol (TWAMP) defines a standard for measuring round-trip network performance between any two devices that support the TWAMP protocols. The TWAMP-Control protocol is used to set up performance measurement sessions. The TWAMP-Test protocol is used to send and receive performance-measurement probes.
For more information, see IP SLAs TWAMP Responder.
Network Time Protocol (NTP) Timestamping
Starting with Cisco IOS XE Release 3.12S, additional NTP Time of Day synchronization configuration is supported when NTP is chosen for time synchronization for one-way delay or delay-variation measurements on source and destination devices.
For more information, see Enabling NTP Time of Day Synchronization.
Auto-IP for SVI, Port Channel and VRF
The Auto-IP feature addresses the problem of manually reconfiguring nodes during insertion, deletion, and movement of nodes within an auto-IP ring. The auto-IP feature automatically provides IP addresses to the node interfaces inserted into an auto-IP ring.
For more information, see Auto-IP.
Autonomic networking makes network devices intelligent by introducing self-management concepts that simplify network management for the network operator.
For more information, see Autonomic Networking.
BGP Accumulated IGP
The BGP Accumulated IGP feature is an optional nontransitive Border Gateway Protocol (BGP) path attribute.The attribute type code for the accumulated interior gateway protocol (AIGP) attribute is assigned by the Internet Assigned Numbers Authority (IANA). The value field of the AIGP attribute is defined as a set of type, length, value (TLV) elements. The AIGP TLV contains the AIGP metric.
For more information see, IP Routing: BGP Configuration Guide, Cisco IOS XE Release 3S
Right To Use Licensing
The RTU license is an evaluation license with a 60-day trial period and changes into a perpetual “Right-To-Use” license after the expiry of the trial period. For more information, see Licensing the Cisco ASR 900 Series Routers.