Cisco CRS Configuration Guide

Where DocumentedIntroduced/Changed in ReleaseDescriptionFeature
Implementing MPLS Traffic
Engineering chapter:
MPLS TE IPv6 Autoroute, on
page 211
Release 5.1.1This feature was introduced.MPLS TE IPv6 Autoroute
Implementing MPLS Traffic
Engineering chapter:
MPLS TE SRLG Scale
Enhancements, on page 203
Release 5.1.1This feature was introduced.MPLS TE SRLG Scale
Enhancements
Implementing MPLS Traffic
Engineering chapter:
MPLS TE Usability
Enhancements, on page 210
Release 5.1.1This feature was introduced.MPLS TE Usability
Enhancements
Implementing MPLS Label
Distribution Protocol chapter:
MPLS LDP Carrier Supporting
Carrier for Multiple VRFs, on
page 21
Release 5.1.1This feature was introduced.MPLS LDP Carrier Supporting
Carrier for Multiple VRFs
Implementing MPLS Traffic
Engineering chapter:
MPLS TE Path Cost Limit, on
page 211
Configuring Path-selection Cost
Limit, on page 336
Configure MPLS TE
Path-selection Cost Limit:
Example, on page 368
Release 5.1.2This feature was introduced.MPLS TE Path Cost Limit
Implementing MPLS Traffic
Engineering chapter:
Soft-preemption over FRR
Backup Tunnels, on page 212
Enabling Soft-preemption over
FRR Backup Tunnels, on page
339
Release 5.1.2This feature was introduced.Soft-preemption over FRR
Backup Tunnels
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
2
New and Changed Feature Information in Cisco IOS XR Release 5.1.x
New and Changed Feature Information in Cisco IOS XR Release 5.1.x

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs