Users Guide

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationSFTOS Example Running-Configuration.......................................................................................574
Debugging and Verifying MSTP Configurations........................................................................................................ 577
33 Multicast Features...................................................................................................................................579
Enabling IP Multicast.....................................................................................................................................................579
Implementation Information......................................................................................................................................... 579
Multicast Policies...........................................................................................................................................................580
IPv4 Multicast Policies............................................................................................................................................580
Understanding Multicast Traceroute (mtrace)......................................................................................................... 587
Important Points to Remember.............................................................................................................................588
Printing Multicast Traceroute (mtrace) Paths..........................................................................................................588
Supported Error Codes.................................................................................................................................................589
mtrace Scenarios...........................................................................................................................................................590
34 Object Tracking.......................................................................................................................................596
Object Tracking Overview............................................................................................................................................596
Track Layer 2 Interfaces.........................................................................................................................................597
Track Layer 3 Interfaces.........................................................................................................................................597
Track IPv4 and IPv6 Routes.................................................................................................................................. 598
Set Tracking Delays.................................................................................................................................................599
VRRP Object Tracking............................................................................................................................................599
Object Tracking Configuration.....................................................................................................................................599
Tracking a Layer 2 Interface.................................................................................................................................. 599
Tracking a Layer 3 Interface.................................................................................................................................. 600
Track an IPv4/IPv6 Route..................................................................................................................................... 602
Displaying Tracked Objects..........................................................................................................................................605
35 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 607
Protocol Overview.........................................................................................................................................................607
Autonomous System (AS) Areas...........................................................................................................................607
Area Types............................................................................................................................................................... 608
Networks and Neighbors........................................................................................................................................609
Router Types............................................................................................................................................................609
Designated and Backup Designated Routers........................................................................................................ 611
Link-State Advertisements (LSAs).........................................................................................................................611
Router Priority and Cost..........................................................................................................................................612
OSPF with Dell Networking OS....................................................................................................................................613
Graceful Restart....................................................................................................................................................... 614
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................615
Multi-Process OSPFv2 with VRF.......................................................................................................................... 615
OSPF ACK Packing..................................................................................................................................................615
Setting OSPF Adjacency with Cisco Routers.......................................................................................................615
Configuration Information............................................................................................................................................. 616
Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................616
Configuration Task List for OSPFv3 (OSPF for IPv6)....................................................................................... 630
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Contents