Dell S6000-ON - page 7

BGP Attributes...................................................................................................................................169

Best Path Selection Criteria........................................................................................................169

Weight...........................................................................................................................................171

Local Preference..........................................................................................................................172

Multi-Exit Discriminators (MEDs)................................................................................................172

Origin............................................................................................................................................173

AS Path.........................................................................................................................................174

Next Hop......................................................................................................................................174

Multiprotocol BGP.............................................................................................................................175

Implement BGP with Dell Networking OS.......................................................................................175

Additional Path (Add-Path) Support............................................................................................175

Advertise IGP Cost as MED for Redistributed Routes................................................................176

Ignore Router-ID for Some Best-Path Calculations..................................................................177

Four-Byte AS Numbers................................................................................................................177

AS4 Number Representation.......................................................................................................177

AS Number Migration..................................................................................................................179

BGP4 Management Information Base (MIB)...............................................................................181

Important Points to Remember..................................................................................................181

Configuration Information................................................................................................................182

BGP Configuration............................................................................................................................182

Enabling BGP...............................................................................................................................183

Configuring AS4 Number Representations................................................................................187

Configuring Peer Groups............................................................................................................189

Configuring BGP Fast Fall-Over..................................................................................................191

Configuring Passive Peering.......................................................................................................193

Maintaining Existing AS Numbers During an AS Migration........................................................194

Allowing an AS Number to Appear in its Own AS Path..............................................................195

Enabling Graceful Restart...........................................................................................................196

Enabling Neighbor Graceful Restart...........................................................................................197

Filtering on an AS-Path Attribute................................................................................................198

Regular Expressions as Filters.....................................................................................................199

Redistributing Routes..................................................................................................................201

Enabling Additional Paths...........................................................................................................201

Configuring IP Community Lists................................................................................................202

Configuring an IP Extended Community List............................................................................203

Filtering Routes with Community Lists......................................................................................204

Manipulating the COMMUNITY Attribute..................................................................................205

Changing MED Attributes...........................................................................................................207

Changing the LOCAL_PREFERENCE Attribute..........................................................................207

Changing the NEXT_HOP Attribute...........................................................................................208

Changing the WEIGHT Attribute................................................................................................208

Enabling Multipath......................................................................................................................209