Cisco NCS 6000 Series User Manual

PurposeCommand or Action
Specifies either an IPv4 or IPv6 address family unicast and
enters address family configuration submode.
address-family { ipv4 | ipv6 } unicast
Example:
Step 3
To see a list of all the possible keywords and arguments for
this command, use the CLI help (?).
RP/0/RP0/CPU0:router(config-bgp)# address-family
ipv4 unicast
Sets the critical next-hop trigger delay.
nexthop trigger-delay { critical delay | non-critical
delay }
Step 4
Example:
RP/0/RP0/CPU0:router(config-bgp-af)# nexthop
trigger-delay critical 15000
commit
Step 5
Disabling Next-Hop Processing on BGP Updates
Perform this task to disable next-hop calculation for a neighbor and insert your own address in the next-hop
field of BGP updates. Disabling the calculation of the best next hop to use when advertising a route causes
all routes to be advertised with the network device as the next hop.
Next-hop processing can be disabled for address family group, neighbor group, or neighbor address family.
Note
SUMMARY STEPS
1. configure
2. router bgp as-number
3. neighbor ip-address
4. remote-as as-number
5. address-family { ipv4 | ipv6 } unicast
6. next-hop-self
7. commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Specifies the autonomous system number and enters the
BGP configuration mode, allowing you to configure the
BGP routing process.
router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)# router bgp 120
Step 2
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
69
Implementing BGP
Disabling Next-Hop Processing on BGP Updates

Cisco NCS 6000 Series Specifications

General

Brand	Cisco
Model	NCS 6000 Series
Category	Network Router
Language	English

Summary

Implementing BGP

Information About Implementing BGP

Explains core concepts for BGP implementation, including functional overview and router identifier.

BGP Configuration

Covers BGP configuration models, modes, and templates like af-group, session-group, and neighbor-group.

How to Implement BGP

Provides tasks for enabling BGP routing and establishing a BGP routing process.

Implementing BGP Flowspec

BGP Flow Specification

Explains how BGP flowspec allows rapid deployment and propagation of filtering and policing functionality for DDoS mitigation.

BGP Flowspec Conceptual Architecture

Configuring BGP Flowspec with ePBR

Explains procedures for configuring BGP flowspec with ePBR, including class map and policy map.

Implementing BFD

Information About BFD

Explains differences between BFD in Cisco IOS XR and Cisco IOS software, and BFD modes of operation.

How to Configure BFD

Provides guidelines and steps for configuring BFD under dynamic routing protocols or static routes.

Implementing EIGRP

Information About Implementing EIGRP

Explains EIGRP concepts, including functional overview, features, and components like DUAL.

EIGRP Components

Describes the four basic components of EIGRP: neighbor discovery, reliable transport protocol, DUAL, and protocol-dependent modules.

Stub Routing for an EIGRP Process

Implementing IS-IS

IS-IS Functional Overview

Explains IS-IS network structure, Level 1 and Level 2 adjacencies, and routing levels.

Key Features Supported in the Cisco IOS XR IS-IS Implementation

IS-IS Authentication

Implementing OSPF

Information About Implementing OSPF

Key Features Supported in the Cisco IOS XR Software OSPF Implementation

OSPF Hierarchical CLI and CLI Inheritance

Virtual Link and Transit Area for OSPF

Implementing IP Fast Reroute Loop-Free Alternate

LFA Overview

Configuring Fast Reroute Support

Implementing Routing Policy

Information About Implementing Routing Policy

Routing Policy Language Structure

Attach Points

BGP Policy Attach Points

Describes BGP policy attach points, including additional-path, neighbor-ORF, next-hop, clear-policy, and debug.

Implementing RCMD

Route Convergence Monitoring and Diagnostics

Explains RCMD as a mechanism to monitor OSPF and IS-IS convergence events, SPF runs, and route/LDP provisioning.

Configuring Route Convergence Monitoring and Diagnostics