HPE Aruba 3810, Multicast And Routing Manual

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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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