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Configuring IS-IS FRR ··················································································································································· 157

Enabling IS-IS SNMP trap ··········································································································································· 159

Binding an IS-IS process with MIBs ···························································································································· 159

Configuring BFD for IS-IS············································································································································· 159

Displaying and maintaining IS-IS ······························································································································· 159

IS-IS configuration examples ······································································································································· 161

IS-IS basic configuration ····································································································································· 161

DIS election configuration ·································································································································· 165

Configuring IS-IS route redistribution ················································································································ 169

IS-IS Graceful Restart configuration example ··································································································· 173

IS-IS NSR configuration example ······················································································································· 174

IS-IS FRR configuration example ························································································································ 176

IS-IS authentication configuration example······································································································· 178

Configuring BFD for IS-IS ···································································································································· 181

Configuring BGP ····················································································································································· 184

Hardware compatibility ··············································································································································· 184

BGP overview ······························································································································································· 184

BGP messages formats ········································································································································ 184

BGP path attributes ············································································································································· 187

BGP route selection ············································································································································· 191

BGP and IGP synchronization···························································································································· 193

Settlements for problems in large scale BGP networks ··················································································· 193

BGP GR ································································································································································ 196

MP-BGP ································································································································································· 197

Protocols and standards ····································································································································· 197

BGP configuration task list ·········································································································································· 198

Configuring BGP basic functions ································································································································ 199

Configuration prerequisites ································································································································ 199

Creating a BGP connection ································································································································ 199

Specifying the source interface for TCP connections ······················································································· 200

Allowing establishment of EBGP connection to an indirectly connected peer or peer group····················· 201

Controlling route generation ······································································································································· 201

Injecting a local network ···································································································································· 201

Configuring BGP route redistribution ················································································································ 202

Enabling default route redistribution into BGP ································································································· 202

Controlling route distribution and reception ············································································································· 203

Configuring BGP route summarization ············································································································· 203

Advertising a default route to a peer or peer group ······················································································· 203

Configuring BGP route distribution/reception filtering policies ····································································· 204

Enabling BGP and IGP route synchronization ································································································· 206

Limiting prefixes received from a peer or peer group ····················································································· 206

Configuring BGP route dampening ··················································································································· 207

Configuring a shortcut route······························································································································· 207

Configuring BGP route attributes ································································································································ 208

Specifying a preferred value for routes received ····························································································· 208

Configuring preferences for BGP routes ··········································································································· 208

Configuring the default local preference ·········································································································· 209

Configuring the MED attribute ··························································································································· 209

Configuring the NEXT_HOP attribute ················································································································ 211

Configuring the AS_PATH attribute ··················································································································· 212

Tuning and optimizing BGP networks ························································································································ 213