2.0 Networking Topics
The Networking topics section is 30% of the overall exam, the topics and associated study materials I am using/collecting is below.
2.1 Implement IS-IS (IPv6 and IPv6)
Book: Routing TCP/IP Volume 1
- Chapter 10, Page 574 - Case Study: A basic IPv4 IS-IS Configuration
- Chapter 10, Page 591 - Case Study: A basic IPv6 IS-IS Configuration
Cisco Documentation: Implementing IS-IS on Cisco IOS XR Software
2.1.a Route advertisement
Cisco Documentation: LSPs
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 3, Page 72 to 75 - LSAs and LSPs
2.1.b Area addressing
Book: Routing TCP/IP Volume 1
- Chapter 10, Page 516 to 520 - Operation of Integrated IS-IS, IS-IS Areas, Network Entity Titles
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 5, Page 151 to 154 - IS-IS Areas and Router Types
- Chapter 7, Page 248 to 251 - IS-IS Areas
2.1.c Multitopology
RFC 5120: M-ISIS: Multi Topology (MT) Routing in Intermediate System to Intermediate Systems (IS-ISs)
Blog: ISIS IPv6 Multi Topology
Cisco Documentation: IPv6 Routing: IS-IS Multitopology Support for IPv6
Cisco Documentation: Multitopology Configuration IOS-XR
2.1.d Metrics
Cisco Documentation: Setting the IS-IS Link-State Metrics
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 5, Page 156 to 158 - IS-IS Metrics
Blog: IS IS Metric
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 9, Page 391-392 - Example 9-16 IS-IS Metric Configuration
2.2 Implement OSPF (v2 and v3)
Book: Routing TCP/IP Volume 1
- Chapter 8, Page 411 - Configuring OSPFv2: Case Studies
- Chapter 8, Page 455 - Troubleshooting OSPF
- Chapter 9, Page 494 - Configuring OSPFv3: Case Studies
- Chapter 9, Page 506 - Troubleshooting OSPFv3
Cisco Documentation: IOS-XR Implementing OSPF
2.2.a Neighbor adjacency
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 4, Page 101 to 103 - OSPF Adjacencies
2.2.b Route advertisement
Blog: Type-1 (Router) LSA in OSPF Topology Database
2.2.c Multiarea (addressing and types)
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 5, Page 149 to 151 - OSPF Areas and Router Types
Book: Routing TCP/IP Volume 1
- Chapter 8, Page 367 to 370 - Areas and Router Types
2.2.d Metrics
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 5, Page 154 to 156 - OSPF Metrics
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 6, Page 235 - Link Costs
Book: Routing TCP/IP Volume 1
- Chapter 8, Page 345 - Interface Cost
Blog: How to configure OSPF cost IOS-XE
Cisco Documentation: cost (OSPF) IOS-XR
2.3 Describe BGP path selection algorithm
Book, Cisco Press: Routing TCP/IP Volume 2
- Chapter 2, Page 114-115 - The BGP Decision Process
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 15, Page 672 to 722 - BGP Best Path Selection
2.4 Implement BGP (v4 and v6 for IBGP and EBGP)
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 10, Page 418 to 424 - Basic BGP Configuration
Cisco Blog: BGP Basic Configuration On IOS XR - IBGP And EBGP (ipv6 example in comments)
2.4.a Neighbors
Cisco Documentation: Chapter: IPv6 Routing: Multiprotocol BGP Link-Local Address Peering IOS-XE
Cisco Documentation: Chapter: IPv6 Routing: Multiprotocol BGP Extensions for IPv6 IOS-XE
Cisco Documentaiton: Routing Configuration Guide for Cisco ASR 9000 Series Routers
2.4.b Prefix advertisement
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 10, Page 425 to 426 - Prefix Advertisement
2.4.c Address family
Cisco Documentation: address-family ipv4 (BGP) IOS-XE
Cisco Documentation: address-family (BGP) IOS-XR
2.4.d Path selection
Cisco Blog: Understanding BGP Best Path Selection & Manipulation
2.4.e Attributes
Book, Cisco Press: Routing TCP/IP Volume 2
- Chapter 2, Page 98 to 111 - Path Attributes
2.4.f Redistribution
Book, Cisco Press: Routing TCP/IP Volume 2
- Chapter 3, Page 155 to 167 - Case study: Injecting IGP Routes into BGP / Injecting BGP routes into an IGP
2.5 Implement routing policy language and route maps (BGP, OSPF, IS-IS)
Book, Cisco Press: IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Chapter 11, Page 467 - Route maps and Route policy (Route maps, Page 488 / RPL Page 496)
- Chapter 12, Page 521 - Advanced Route Manipulation (conditional filtering, modifying AD, prefix filtering)
2.6 Troubleshoot routing protocols
2.6.a Neighbor adjacency (IS-IS, OSPF, BGP)
Book: Routing TCP/IP Volume 1
- Chapter 8, Page 456 - Troubleshooting OSPF
- Chapter 10, Page 607 - Troubleshooting IS-IS Adjacencies
Book, Cisco Press: Routing TCP/IP Volume 2
- Chapter 3, Page 149 - Peering BGP Routers
- Chapter 3, Page 318 - Troubleshooting Exercises (BGP)
Book: OSPF and ISIS Choosing and IGP for Large Scale Networks
- Chapter 4, Page 101 to 106 Adjacencies
2.6.b Route advertisement (IS-IS, OSPF, BGP)
Blog: configreouter.com - Troubleshooting OSPF Route Advertisement
Blog: networklessons.com - Troubleshooting OSPF Route Advertisement
Blog: protocoholic.com - GNS3 LAB: Cisco ISIS, How to verify and troubleshoot.
Blog: ccexpter.us - Troubleshooting ISIS Routing Update Problems
Book, Cisco Press: Routing TCP/IP Volume 2
- Chapter 3, Page 155 - Case Study Injecting IGP routes into BGP
- Chapter 3, Page 167 - Case Study Injecting BGP routes into IGP
- Chapter 3, Page 185 - Case Study Aggregate Routes
2.7 Describe IPv6 transition (NAT44, NAT64, 6RD, MAP, and DS Lite)
Cisco Live Presentation: IPv4 Exhaustion: IPv6 Transition and NAT Architecture
2.8 Implement high availability
2.8.a NSF / graceful restart
Cisco Press: NSF/SSO, NSR, Graceful Restart to Ensure Robust Routing
Blog: ipspace.net - Graceful Restart (GR) 101
2.8.b NSR
Cisco Live Presentation: Catalyst 9000 IOS-XE Innovations
Cisco Documentation: BGP Nonstop Routing - IOS-XR
Blog: ipspace.net - Non-Stop Routing (NSR) 101
2.8.c BFD
Cisco Documentation: Bidirectional Forwarding Detection - IOS-XE
Cisco Documentation: Implementing BFD - IOS-XR
2.8.d Link aggregation
Cisco Documentation: Ethernet Virtual Connections on Port Channels - IOS-XE
Blog: fryguy.net - Cisco ASR and LACP
Cisco Documentation: Configuring Link Bundling - IOS-XR
Blog: fryguy.net - Cisco IOS XR Interface Bundles (aka Etherchannel or 802.3ad)