30 Multicast Features...................................................................................................................................569Enabling IP Multicast.....................................................................................................................................................569Implementation Information......................................................................................................................................... 569Multicast Policies........................................................................................................................................................... 570IPv4 Multicast Policies............................................................................................................................................ 570Understanding Multicast Traceroute (mtrace)...........................................................................................................577Important Points to Remember..............................................................................................................................578Printing Multicast Traceroute (mtrace) Paths............................................................................................................578Supported Error Codes................................................................................................................................................. 579mtrace Scenarios...........................................................................................................................................................58031 Object Tracking........................................................................................................................................ 586Object Tracking Overview............................................................................................................................................ 586Track Layer 2 Interfaces..........................................................................................................................................587Track Layer 3 Interfaces..........................................................................................................................................587Track IPv4 and IPv6 Routes................................................................................................................................... 588Set Tracking Delays................................................................................................................................................. 589VRRP Object Tracking............................................................................................................................................ 589Object Tracking Configuration..................................................................................................................................... 589Tracking a Layer 2 Interface................................................................................................................................... 589Tracking a Layer 3 Interface................................................................................................................................... 590Track an IPv4/IPv6 Route...................................................................................................................................... 592Displaying Tracked Objects...........................................................................................................................................59532 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................597Protocol Overview......................................................................................................................................................... 597Autonomous System (AS) Areas............................................................................................................................597Area Types................................................................................................................................................................ 598Networks and Neighbors........................................................................................................................................599Router Types............................................................................................................................................................ 599Designated and Backup Designated Routers........................................................................................................601Link-State Advertisements (LSAs).........................................................................................................................601Router Priority and Cost.........................................................................................................................................602OSPF with Dell Networking OS...................................................................................................................................603Graceful Restart...................................................................................................................................................... 604Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................605Multi-Process OSPFv2 with VRF..........................................................................................................................605RFC-2328 Compliant OSPF Flooding................................................................................................................... 605OSPF ACK Packing................................................................................................................................................. 606Setting OSPF Adjacency with Cisco Routers...................................................................................................... 606Configuration Information............................................................................................................................................. 607Configuration Task List for OSPFv2 (OSPF for IPv4).........................................................................................607Configuration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 621Enabling IPv6 Unicast Routing...............................................................................................................................622Assigning IPv6 Addresses on an Interface............................................................................................................62220 Contents
