Administrator Guide

31 Object Tracking........................................................................................................................................ 575
Object Tracking Overview............................................................................................................................................ 575
Track Layer 2 Interfaces..........................................................................................................................................576
Track Layer 3 Interfaces..........................................................................................................................................576
Track IPv4 and IPv6 Routes....................................................................................................................................577
Set Tracking Delays..................................................................................................................................................578
VRRP Object Tracking.............................................................................................................................................578
Object Tracking Conguration......................................................................................................................................578
Tracking a Layer 2 Interface................................................................................................................................... 578
Tracking a Layer 3 Interface................................................................................................................................... 579
Track an IPv4/IPv6 Route.......................................................................................................................................581
Displaying Tracked Objects...........................................................................................................................................584
32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................586
Protocol Overview.........................................................................................................................................................586
Autonomous System (AS) Areas........................................................................................................................... 586
Area Types................................................................................................................................................................ 587
Networks and Neighbors........................................................................................................................................588
Router Types............................................................................................................................................................ 588
Designated and Backup Designated Routers.......................................................................................................590
Link-State Advertisements (LSAs)........................................................................................................................590
Router Priority and Cost..........................................................................................................................................591
OSPF with Dell Networking OS...................................................................................................................................592
Graceful Restart.......................................................................................................................................................593
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................594
Multi-Process OSPFv2 with VRF..........................................................................................................................594
RFC-2328 Compliant OSPF Flooding................................................................................................................... 594
OSPF ACK Packing................................................................................................................................................. 595
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 595
Conguration Information.............................................................................................................................................596
Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 596
Conguration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 610
Enabling IPv6 Unicast Routing................................................................................................................................ 611
Applying cost for OSPFv3........................................................................................................................................611
Assigning IPv6 Addresses on an Interface............................................................................................................ 612
Assigning Area ID on an Interface...........................................................................................................................612
Assigning OSPFv3 Process ID and Router ID Globally.........................................................................................612
Assigning OSPFv3 Process ID and Router ID to a VRF.......................................................................................613
Conguring Stub Areas............................................................................................................................................613
Conguring Passive-Interface.................................................................................................................................614
Redistributing Routes...............................................................................................................................................614
Conguring a Default Route....................................................................................................................................614
Enabling OSPFv3 Graceful Restart........................................................................................................................615
OSPFv3 Authentication Using IPsec......................................................................................................................617
Troubleshooting OSPFv3........................................................................................................................................623
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Contents