Cisco NCS 6000 Series User Manual

Configuration Templates 9
Template Inheritance Rules 11
Viewing Inherited Configurations 15
No Default Address Family 19
Neighbor Address Family Combinations 19
Routing Policy Enforcement 20
Table Policy 21
Update Groups 21
BGP Update Generation and Update Groups 21
BGP Update Group 21
BGP Cost Community 22
How BGP Cost Community Influences the Best Path Selection Process 22
Cost Community Support for Aggregate Routes and Multipaths 23
Influencing Route Preference in a Multiexit IGP Network 24
Adding Routes to the Routing Information Base 25
BGP Best Path Algorithm 25
Comparing Pairs of Paths 26
Order of Comparisons 28
Best Path Change Suppression 28
Administrative Distance 29
Route Dampening 30
Minimizing Flapping 31
BGP Routing Domain Confederation 31
BGP Route Reflectors 31
Remotely Triggered Blackhole Filtering with RPL Next-hop Discard Configuration 34
Configuring Destination-based RTBH Filtering 34
Verification 36
Default Address Family for show Commands 37
BGP Keychains 37
BGP Nonstop Routing 37
BGP Best-External Path 39
BGP Local Label Retention 40
BGP Over GRE Interfaces 40
Command Line Interface (CLI) Consistency for BGP Commands 40
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
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Contents

Cisco NCS 6000 Series Specifications

General

Brand	Cisco
Model	NCS 6000 Series
Category	Network Router
Language	English