Redistributing IS-IS Routes Between Multiple Instances: Example 253
Tagging Routes: Example 253
Configuring IS-IS Overload Bit Avoidance: Example 254
Where to Go Next 254
Additional References 254
Implementing OSPF 257
CHAPTER 7
Prerequisites for Implementing OSPF 257
Information About Implementing OSPF 258
OSPF Functional Overview 258
Key Features Supported in the Cisco IOS XR Software OSPF Implementation 259
Comparison of Cisco IOS XR Software OSPFv3 and OSPFv2 260
OSPF Hierarchical CLI and CLI Inheritance 260
OSPF Routing Components 261
Autonomous Systems 261
Areas 262
Routers 262
OSPF Process and Router ID 263
Supported OSPF Network Types 264
Route Authentication Methods for OSPF 264
Plain Text Authentication 264
MD5 Authentication 264
Authentication Strategies 264
Key Rollover 265
Neighbors and Adjacency for OSPF 265
Designated Router (DR) for OSPF 265
Default Route for OSPF 265
Link-State Advertisement Types for OSPF Version 2 266
Link-State Advertisement Types for OSPFv3 266
Virtual Link and Transit Area for OSPF 268
Passive Interface 268
OSPF SPF Prefix Prioritization 269
Route Redistribution for OSPF 270
OSPF Shortest Path First Throttling 270
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
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