4-day Hands-on class

Course Description
This hands-on four-day course provides an advanced look at popular IPv4 routing protocols supported in Cisco® IOS® XR Software. The XIPV4R course investigates the intricacies of Interior Gateway Protocol (IGP) operation through Open Shortest Path First (OSPF) and Intermediate System-to-Intermediate System (IS-IS) Protocol labs that engage the student in a detailed examination of the link-state database and the effects of virtually all protocol options.
The complexities of large-scale routing using the Border Gateway Protocol (BGP) are then explored, with the focus placed on scaling networks using route reflection and confederations. In addition, numerous BGP options, such as multihop, multipath, and authentication, are discussed and configured in a lab setting
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Course Objectives
Upon completing this course, the student will be able to:
- Describe the basic unicast forwarding architecture and infrastructure
- Describe and apply basic routing and forwarding security
- Describe and examine bidirectional forwarding detection
- Explain nonstop forwarding operation
- Configure Routing Policy Language (RPL) sets and policies
- Design hierarchical and parameterized RPL policies
- Configure IS-IS Level 1 and Level 2 areas and verify operation
- Implement route redistribrution and summarization in IS-IS
- Implement RPL policies in IS-IS
- Configure a multiple area OSPF domain and verify operation
- Configure route redistribution filtered with an RPL policy
- Configure autonomous systems with internal BGP full-mesh, route reflectors, and as a confederation Configure external BGP between adjacent autonomous systems
- Examine internal and external BGP operation
Intended Audience
This course is for technical professionals who design, implement, and operate IPv4 routing protocols in a service provider network consisting of routers running Cisco IOS XR Software. The following are considered the primary audience for this course:
- Network operations center (NOC) engineers
- Network and senior engineers
- Support engineers
Prerequisites
Following are the prerequisites for this course:
Lab Topology
Figure 1 shows the lab topology used in the Cisco IOS XR course.
| Figure 1: Lab Topology |
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Course Outline
- IPv4 Routing Architecture and Infrastructure
- Data Packet Forwarding Infrastructure
- Building the Forwarding Information
- Routing Information Base Operation
- Adjacency Information Base Operation
- Forwarding Information Base Operation
- Bulk Content Downloader
- Routing and Forwarding Protection Infrastructure
- Bidirectional Forwarding Detection
- Nonstop Forwarding
- Process Operation
- Miscellaneous Infrastructure Information
- Routing Policy Language
- RPL Overview
- RPL Description
- Policy Processing
- RPL-Specific CLI Commands
- IS-IS Routing in the Core
- IS-IS Overview
- Configuring IS-IS
- Router Address Family Configuration
- Interface Configuration
- Interface Address Family Configuration
- IS-IS Route Policy
- Configuration Example
- Examining IS-IS Operation
- Managing IS-IS Implementation
- OSPF Routing in the Core
- OSPF Overview
- Configuring OSPF
- Verifying Basic OSPF Operation
- Configuring Multiple Areas
- Virtual Links
- OSPF Route Policy
- Tuning OSPF
- BGP Routing Through the Core
- BGP Overview
- Configuring BGP
- Configuration Groups
- Examining BGP Operation
- Internal BGP Scaling
- Route Flap Dampening
- BGP Route Policy
- Distributed BGP
Lab Outline
- Lab 1: Examining Cisco IOS XR Software Routing Infrastructure Boot a static routed configuration and examine the routing infrastructure environment.
- Lab 2: Routing Policy Language
Design and configure a route policy to filter routes.
- Lab 3: Configuring IS-IS Routing
Configure a core of routers as an IS-IS domain.
- Lab 4: Configuring OSPF Routing
Configure another core of routers as a multiiple area OSPF domain.
- Lab 5: Configuring BGP Routing
Configure each core as a separate autonomous system with one as an internal BGP route reflector environment and the other as a BGP confederation

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