Static Routing 273
Adding Static Routes to a Context 274
Deleting Static Routes From a Context 274
OSPF Routing 274
OSPF Version 2 Overview 275
Basic OSPFv2 Configuration 276
Enabling OSPF Routing For a Specific Context 276
Enabling OSPF Over a Specific Interface 276
Redistributing Routes Into OSPF (Optional) 276
Confirming OSPF Configuration Parameters 277
OSPFv3 Routing 277
OSPFv3 Overview 277
Basic OSPFv3 Configuration 277
Enabling OSPFv3 Routing For a Specific Context 277
Enabling OSPFv6 Over a Specific Interface 278
Redistributing Routes Into OSPFv3 (Optional) 278
Confirming OSPFv3 Configuration Parameters 278
Equal Cost Multiple Path (ECMP) 278
BGP-4 Routing 279
Overview of BGP Support 279
Configuring BGP 280
Redistributing Routes Into BGP (Optional) 280
BGP Communities and Extended Communities 281
BGP Communities 281
Configuring a BGP Community 281
Setting the Community Attribute 282
Filtering via a BGP Community 282
BGP Extended Communities 282
Configuring a BGP Extended Community (Route Target) 282
Setting the Extended Community Attribute 283
Filtering via a BGP Extended Community 283
BGP Local Preference 283
ICSR and SRP Groups 283
Advertising BGP Routes from a Standby ICSR Chassis 283
Configurable BGP Route Advertisement Interval for ICSR 284
ASR 5500 System Administration Guide, StarOS Release 21.4
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Contents