SP High End Product

We are coming to the IOS XR. Personally, I like this OS and can recommend to start from the IOS XR Fundamentals book.

This post covers following topics:

1. IOS XR structure
2. Installing IOS XR software
3. Upgrade and manage IOS XR software
4. Secure  Domain Router (SDR)
5. CRS-1/3 structure
6. CRS-1/3 multi-chassis
7. Redundant Router Processors
8. RP switchover
9. MSC architecture
10. Switch Fabric Architecture

Cisco IOS XR Structure

Here I found CRS-1/XR overview presentation
Cisco IOS XR Network Examples
IOS XR Upgrade Procedure - the bigger the box - the longer the process.