Cisco NCS 5500 Series Configuration Guide

Configure VRF Dynamic Route Leaking 100
Configuring a VPN Routing and Forwarding Instance in BGP 102
Define Virtual Routing and Forwarding Tables in Provider Edge Routers 102
Configure Route Distinguisher 104
Configure PE-PE or PE-RR Interior BGP Sessions 106
Configure BGP as PE-CE Protocol 109
Resetting an eBGP Session Immediately Upon Link Failure 113
Selective FIB Download 114
Configuring Selective FIB Download 116
Information about Implementing BGP 117
BGP Router Identifier 118
BGP Default Limits 118
BGP Attributes and Operators 119
BGP Best Path Algorithm 130
Comparing Pairs of Paths 130
Order of Comparisons 132
Best Path Change Suppression 133
BGP Update Generation and Update Groups 133
BGP Update Group 134
BGP Cost Community Reference 134
BGP Next Hop Reference 134
BGP Nonstop Routing Reference 136
BGP Route Reflectors Reference 138
iBGP Multipath Load Sharing Reference 141
L3VPN iBGP PE-CE Reference 142
MPLS VPN Carrier Supporting Carrier 142
Per VRF and Per CE Label for IPv6 Provider Edge 143
IPv6 Unicast Routing 143
Remove and Replace Private AS Numbers from AS Path in BGP 144
BGP Update Message Error Handling 144
BGP Error Handling and Attribute Filtering Syslog Messages 145
BGP-RIB Feedback Mechanism for Update Generation 145
Use-defined Martian Check 146
CHAPTER 3 EVPN Virtual Private Wire Service (VPWS) 147
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
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Contents

Cisco NCS 5500 Series Specifications

General

Series	NCS 5500
Category	Network Router
Operating System	Cisco IOS XR
Product Type	Modular Router
Form Factor	Rack-mountable
Purpose	High-performance routing for service providers and large enterprises
Interface Types	Ethernet
Redundancy	Redundant power supplies and fan trays
Port Density	Varies by model; high-density configurations available
Routing Protocols	BGP, OSPF, IS-IS, MPLS
Power Supply Options	AC and DC power supplies available
Management	CLI, SNMP, NETCONF