Implementation Information............................................................................................................662
Multicast Policies.............................................................................................................................. 663
IPv4 Multicast Policies................................................................................................................ 663
35 Object Tracking.............................................................................................. 671
Object Tracking Overview................................................................................................................ 671
Track Layer 2 Interfaces..............................................................................................................672
Track Layer 3 Interfaces..............................................................................................................672
Track IPv4 and IPv6 Routes........................................................................................................ 673
Set Tracking Delays.....................................................................................................................674
VRRP Object Tracking.................................................................................................................674
Object Tracking Configuration.........................................................................................................674
Tracking a Layer 2 Interface........................................................................................................675
Tracking a Layer 3 Interface....................................................................................................... 676
Track an IPv4/IPv6 Route............................................................................................................677
Displaying Tracked Objects.............................................................................................................. 681
36 Open Shortest Path First (OSPFv2 and OSPFv3)...................................... 684
Protocol Overview............................................................................................................................684
Autonomous System (AS) Areas.................................................................................................684
Area Types...................................................................................................................................685
Networks and Neighbors............................................................................................................686
Router Types...............................................................................................................................686
Designated and Backup Designated Routers............................................................................ 688
Link-State Advertisements (LSAs)...............................................................................................688
Router Priority and Cost.............................................................................................................690
OSPF with Dell Networking OS........................................................................................................ 691
Graceful Restart...........................................................................................................................691
Fast Convergence (OSPFv2, IPv4 Only)..................................................................................... 692
Multi-Process OSPFv2 with VRF.................................................................................................693
RFC-2328 Compliant OSPF Flooding........................................................................................ 693
OSPF ACK Packing......................................................................................................................694
Setting OSPF Adjacency with Cisco Routers.............................................................................694
Configuration Information............................................................................................................... 695
Configuration Task List for OSPFv2 (OSPF for IPv4)..................................................................695
Sample Configurations for OSPFv2..................................................................................................710
Basic OSPFv2 Router Topology..................................................................................................710
OSPF Area 0 — Te 1/1 and 1/2.....................................................................................................711
OSPF Area 0 — Te 3/1 and 3/2.................................................................................................... 711
OSPF Area 0 — Te 2/1 and 2/2....................................................................................................712
Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................ 712
Enabling IPv6 Unicast Routing.................................................................................................... 713
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