Users Guide

30 Multicast Features...................................................................................................................................569
Enabling IP Multicast.....................................................................................................................................................569
Implementation Information......................................................................................................................................... 569
Multicast Policies........................................................................................................................................................... 570
IPv4 Multicast Policies............................................................................................................................................ 570
Understanding Multicast Traceroute (mtrace)...........................................................................................................577
Important Points to Remember..............................................................................................................................578
Printing Multicast Traceroute (mtrace) Paths............................................................................................................578
Supported Error Codes................................................................................................................................................. 579
mtrace Scenarios...........................................................................................................................................................580
31 Object Tracking........................................................................................................................................ 586
Object Tracking Overview............................................................................................................................................ 586
Track Layer 2 Interfaces..........................................................................................................................................587
Track Layer 3 Interfaces..........................................................................................................................................587
Track IPv4 and IPv6 Routes................................................................................................................................... 588
Set Tracking Delays................................................................................................................................................. 589
VRRP Object Tracking............................................................................................................................................ 589
Object Tracking Conguration..................................................................................................................................... 589
Tracking a Layer 2 Interface................................................................................................................................... 589
Tracking a Layer 3 Interface................................................................................................................................... 590
Track an IPv4/IPv6 Route...................................................................................................................................... 592
Displaying Tracked Objects...........................................................................................................................................595
32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................597
Protocol Overview......................................................................................................................................................... 597
Autonomous System (AS) Areas............................................................................................................................597
Area Types................................................................................................................................................................ 598
Networks and Neighbors........................................................................................................................................599
Router Types............................................................................................................................................................ 599
Designated and Backup Designated Routers........................................................................................................601
Link-State Advertisements (LSAs).........................................................................................................................601
Router Priority and Cost.........................................................................................................................................602
OSPF with Dell Networking OS...................................................................................................................................603
Graceful Restart...................................................................................................................................................... 604
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................605
Multi-Process OSPFv2 with VRF..........................................................................................................................605
RFC-2328 Compliant OSPF Flooding................................................................................................................... 605
OSPF ACK Packing................................................................................................................................................. 606
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 606
Conguration Information.............................................................................................................................................607
Conguration Task List for OSPFv2 (OSPF for IPv4).........................................................................................607
Conguration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 621
Enabling IPv6 Unicast Routing...............................................................................................................................622
Assigning IPv6 Addresses on an Interface............................................................................................................622
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