HPE Aruba 3810 - Page 11

Reducing AS external LSAs and Type-3 summary LSAs...................................................................... 253
Algorithm for AS external LSA reduction.....................................................................................254
Replacing type-3summary LSAs and type-7 default external LSAs with a type-3 default
route LSA.................................................................................................................................... 254
Equal cost multi-path routing (ECMP)....................................................................................................255
Dynamic OSPF activation and configuration......................................................................................... 257
General configuration steps for OSPF........................................................................................ 257
Configuration rules........................................................................................................... 258
OSPF global and interface settings..................................................................................258
Changing the RFC 1583 OSPF compliance setting...............................................................................258
Assigning the routing switch to OSPF areas..........................................................................................259
Configuring for external route redistribution in an OSPF domain.......................................................... 259
Configuring ranges on an ABR to reduce advertising to the backbone................................................. 260
Influencing route choices by changing the administrative distance default (optional)........................... 260
Adjusting performance by changing the VLAN or subnet interface settings.......................................... 260
Configuring OSPF interface authentication............................................................................................260
Configuring an ABR to use a virtual link to the backbone......................................................................261
Adjusting virtual link performance by changing the interface settings................................................... 261
Configuring OSPF authentication on a virtual link................................................................................. 261
About OSPF passive..............................................................................................................................261
About configuring shortest path first (SPF) scheduling..........................................................................262
Graceful shutdown of OSPF routing...................................................................................................... 262
Modules operating in nonstop mode........................................................................................... 262
OSPF equal-cost multipath (ECMP) for different subnets available through the same next-
hop routes................................................................................................................................... 262
Global OSPF Cost Setting..................................................................................................................... 263
router ospf reference-cost............................................................................................ 264
Chapter 12 Route Policy.............................................................................. 266
Using prefix lists.....................................................................................................................................266
Creating prefix list entries............................................................................................................266
Entering a prefix list description.................................................................................................. 267
Viewing prefix lists.......................................................................................................................268
Creating a route map............................................................................................................................. 269
Deleting all or part of a route map...............................................................................................269
Viewing route maps.....................................................................................................................270
Using match commands........................................................................................................................ 270
Matching VLANs......................................................................................................................... 270
Matching prefix lists.....................................................................................................................271
Matching next-hop addresses..................................................................................................... 271
Matching route sources...............................................................................................................271
Matching route metrics................................................................................................................272
Matching metric types................................................................................................................. 272
Matching source protocols.......................................................................................................... 272
Matching tags..............................................................................................................................273
Using set commands............................................................................................................................. 273
Setting the next hop.................................................................................................................... 273
Setting the route metric............................................................................................................... 273
Setting the metric type................................................................................................................ 273
Setting the tag value................................................................................................................... 274
Route policy overview............................................................................................................................ 274
Configuring route policy.............................................................................................................. 274
Route maps............................................................................................................................................275
Match commands...................................................................................................................................276
Using route policy in route redistribution................................................................................................277
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