Concept Guide

ManualsBrandsDell ManualsAccess PlatformsC9010 Modular Chassis Switch

Conguring AS4 Number Representations.......................................................................................................... 200

Conguring Peer Groups.........................................................................................................................................201

Conguring BGP Fast Fail-Over............................................................................................................................ 204

Conguring Passive Peering...................................................................................................................................205

Maintaining Existing AS Numbers During an AS Migration................................................................................ 206

Allowing an AS Number to Appear in its Own AS Path.......................................................................................207

Filtering on an AS-Path Attribute.......................................................................................................................... 208

Regular Expressions as Filters................................................................................................................................209

Redistributing Routes...............................................................................................................................................210

Enabling Additional Paths......................................................................................................................................... 211

Conguring IP Community Lists..............................................................................................................................211

Conguring an IP Extended Community List........................................................................................................ 212

Filtering Routes with Community Lists..................................................................................................................213

Manipulating the COMMUNITY Attribute.............................................................................................................214

Changing MED Attributes....................................................................................................................................... 215

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 216

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 216

Changing the WEIGHT Attribute............................................................................................................................217

Enabling Multipath....................................................................................................................................................217

Filtering BGP Routes................................................................................................................................................218

Filtering BGP Routes Using Route Maps...............................................................................................................219

Filtering BGP Routes Using AS-PATH Information..............................................................................................220

Conguring BGP Route Reectors........................................................................................................................220

Aggregating Routes..................................................................................................................................................221

Conguring BGP Confederations........................................................................................................................... 221

Enabling Route Flap Dampening............................................................................................................................ 222

Changing BGP Timers.............................................................................................................................................224

Setting the extended timer.................................................................................................................................... 225

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................225

Enabling or disabling BGP neighbors.....................................................................................................................226

Route Map Continue............................................................................................................................................... 227

Enabling MBGP Congurations................................................................................................................................... 228

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 229

BGP Regular Expression Optimization........................................................................................................................229

Debugging BGP............................................................................................................................................................. 229

Storing Last and Bad PDUs....................................................................................................................................230

Capturing PDUs........................................................................................................................................................231

PDU Counters.......................................................................................................................................................... 232

Sample Congurations.................................................................................................................................................. 232

9 Content Addressable Memory (CAM).........................................................................................................241

CAM Allocation............................................................................................................................................................... 241

Test CAM Usage............................................................................................................................................................ 243

View CAM-ACL Settings.............................................................................................................................................. 243

View CAM Usage...........................................................................................................................................................244

Conguring CAM Threshold and Silence Period........................................................................................................244

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