Cisco Cisco IOS XR Software Release 3.2 Notas de publicación
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Release Notes for Cisco IOS XR Software Release 3.2.1
OL-8232-01
Contents
These release notes contain the following sections:
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Introduction
Cisco IOS XR software is a distributed operating system designed for continuous system operation
combined with service flexibility and high performance.
combined with service flexibility and high performance.
Cisco IOS XR software provides the following features and benefits:
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IP and Routing—Supports a wide range of IPv4 and IPv6 services, and routing protocols; such as
Border Gateway Protocol (BGP), Intermediate System-to-Intermediate System (IS-IS), Open
Shortest Path First (OSPF), IP Multicast, Routing Policy Language (RPL), and Hot Standby Router
Protocol (HSRP)/Virtual Router Redundancy Protocol features (VRRP).
Border Gateway Protocol (BGP), Intermediate System-to-Intermediate System (IS-IS), Open
Shortest Path First (OSPF), IP Multicast, Routing Policy Language (RPL), and Hot Standby Router
Protocol (HSRP)/Virtual Router Redundancy Protocol features (VRRP).
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Bidirectional forwarding detection (BFD) provides low-overhead, short-duration detection of
failures in the path between adjacent forwarding engines. BFD allows a single mechanism to be used
for failure detection over any media and at any protocol layer, with a wide range of detection times
and overhead. The fast detection of failures provides immediate reaction to failure in the event of a
failed link or neighbor. OSPF, ISIS, BGP and MPLS-TE FRR use BFD to detect failures.
failures in the path between adjacent forwarding engines. BFD allows a single mechanism to be used
for failure detection over any media and at any protocol layer, with a wide range of detection times
and overhead. The fast detection of failures provides immediate reaction to failure in the event of a
failed link or neighbor. OSPF, ISIS, BGP and MPLS-TE FRR use BFD to detect failures.
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MPLS—Supports Multiprotocol Label Switching (MPLS) protocols such as Traffic Engineering
(TE), Resource Reservation Protocol (RSVP), and Label Distribution Protocol (LDP).
(TE), Resource Reservation Protocol (RSVP), and Label Distribution Protocol (LDP).
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Multicast—Provides comprehensive IP Multicast software including Source Specific Multicast
(SSM). The Cisco CRS-1 platform supports Bidirectional Protocol Independent Multicast
(BIDIR-PIM).
(SSM). The Cisco CRS-1 platform supports Bidirectional Protocol Independent Multicast
(BIDIR-PIM).
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Quality of service (QoS)—Supports a rich QoS mechanisms including policing, marking, queuing,
dropping, and shaping. Additionally the operating systems support Modular QoS CLI (MQC). MQC
is used to configure various QoS features on various Cisco platforms.
dropping, and shaping. Additionally the operating systems support Modular QoS CLI (MQC). MQC
is used to configure various QoS features on various Cisco platforms.
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Manageability—Provides industry-standard management interfaces including modular
command-line interface (CLI), Simple Network Management Protocol (SNMP), and native
Extensible Markup Language (XML) interfaces.
command-line interface (CLI), Simple Network Management Protocol (SNMP), and native
Extensible Markup Language (XML) interfaces.