Administrator Guide

30 Multicast Features................................................................................................................................... 570
Enabling IP Multicast.....................................................................................................................................................570
Implementation Information..........................................................................................................................................570
Multicast Policies............................................................................................................................................................571
IPv4 Multicast Policies.............................................................................................................................................571
Understanding Multicast Traceroute (mtrace)...........................................................................................................578
Important Points to Remember..............................................................................................................................579
Printing Multicast Traceroute (mtrace) Paths............................................................................................................579
Supported Error Codes.................................................................................................................................................580
mtrace Scenarios............................................................................................................................................................581
31 Object Tracking........................................................................................................................................ 587
Object Tracking Overview.............................................................................................................................................587
Track Layer 2 Interfaces..........................................................................................................................................588
Track Layer 3 Interfaces..........................................................................................................................................588
Track IPv4 and IPv6 Routes...................................................................................................................................589
Set Tracking Delays................................................................................................................................................. 590
VRRP Object Tracking............................................................................................................................................ 590
Object Tracking Conguration..................................................................................................................................... 590
Tracking a Layer 2 Interface................................................................................................................................... 590
Tracking a Layer 3 Interface....................................................................................................................................591
Track an IPv4/IPv6 Route...................................................................................................................................... 593
Displaying Tracked Objects...........................................................................................................................................596
32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................598
Protocol Overview.........................................................................................................................................................598
Autonomous System (AS) Areas........................................................................................................................... 598
Area Types................................................................................................................................................................ 599
Networks and Neighbors........................................................................................................................................600
Router Types............................................................................................................................................................ 600
Designated and Backup Designated Routers....................................................................................................... 602
Link-State Advertisements (LSAs)........................................................................................................................602
Router Priority and Cost.........................................................................................................................................603
OSPF with Dell Networking OS...................................................................................................................................604
Graceful Restart...................................................................................................................................................... 605
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................606
Multi-Process OSPFv2 with VRF..........................................................................................................................606
RFC-2328 Compliant OSPF Flooding................................................................................................................... 606
OSPF ACK Packing................................................................................................................................................. 607
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 607
Conguration Information.............................................................................................................................................608
Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 608
Conguration Task List for OSPFv3 (OSPF for IPv6)...............................................................................................622
Enabling IPv6 Unicast Routing...............................................................................................................................623
Assigning IPv6 Addresses on an Interface............................................................................................................623
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