Users Guide

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationSFTOS Example Running-Configuration.......................................................................................567
Debugging and Verifying MSTP Configurations........................................................................................................570
31 Multicast Features................................................................................................................................... 572
Enabling IP Multicast.....................................................................................................................................................572
Implementation Information......................................................................................................................................... 572
Multicast Policies........................................................................................................................................................... 573
IPv4 Multicast Policies............................................................................................................................................ 573
Understanding Multicast Traceroute (mtrace)......................................................................................................... 580
Important Points to Remember..............................................................................................................................581
Printing Multicast Traceroute (mtrace) Paths...........................................................................................................581
Supported Error Codes.................................................................................................................................................582
mtrace Scenarios...........................................................................................................................................................583
32 Object Tracking.......................................................................................................................................589
Object Tracking Overview............................................................................................................................................589
Track Layer 2 Interfaces.........................................................................................................................................590
Track Layer 3 Interfaces.........................................................................................................................................590
Track IPv4 and IPv6 Routes................................................................................................................................... 591
Set Tracking Delays.................................................................................................................................................592
VRRP Object Tracking............................................................................................................................................592
Object Tracking Configuration.....................................................................................................................................592
Tracking a Layer 2 Interface.................................................................................................................................. 592
Tracking a Layer 3 Interface.................................................................................................................................. 593
Track an IPv4/IPv6 Route..................................................................................................................................... 595
Displaying Tracked Objects..........................................................................................................................................598
33 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................................600
Protocol Overview........................................................................................................................................................ 600
Autonomous System (AS) Areas.......................................................................................................................... 600
Area Types................................................................................................................................................................ 601
Networks and Neighbors........................................................................................................................................602
Router Types............................................................................................................................................................602
Designated and Backup Designated Routers.......................................................................................................604
Link-State Advertisements (LSAs)....................................................................................................................... 604
Router Priority and Cost.........................................................................................................................................605
OSPF with Dell Networking OS...................................................................................................................................606
Graceful Restart...................................................................................................................................................... 607
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................. 608
Multi-Process OSPFv2 with VRF..........................................................................................................................608
RFC-2328 Compliant OSPF Flooding...................................................................................................................608
OSPF ACK Packing.................................................................................................................................................609
Setting OSPF Adjacency with Cisco Routers......................................................................................................609
Configuration Information............................................................................................................................................. 610
Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................610
20
Contents