Users Guide

Modifying the Interface Parameters............................................................................................................................501
Configuring an EdgePort..............................................................................................................................................502
Flush MAC Addresses after a Topology Change...................................................................................................... 503
MSTP Sample Configurations......................................................................................................................................503
Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationSFTOS Example Running-Configuration...................................................................................... 504
Debugging and Verifying MSTP Configurations........................................................................................................507
30 Multicast Features.................................................................................................................................. 509
Enabling IP Multicast.....................................................................................................................................................509
Implementation Information.........................................................................................................................................509
Multicast Policies............................................................................................................................................................510
IPv4 Multicast Policies.............................................................................................................................................510
Understanding Multicast Traceroute (mtrace).......................................................................................................... 517
Important Points to Remember..............................................................................................................................518
Printing Multicast Traceroute (mtrace) Paths...........................................................................................................518
Supported Error Codes................................................................................................................................................. 519
mtrace Scenarios...........................................................................................................................................................520
31 Object Tracking........................................................................................................................................526
Object Tracking Overview............................................................................................................................................526
Track Layer 2 Interfaces.........................................................................................................................................527
Track Layer 3 Interfaces.........................................................................................................................................527
Track IPv4 and IPv6 Routes.................................................................................................................................. 528
Set Tracking Delays.................................................................................................................................................529
VRRP Object Tracking............................................................................................................................................529
Object Tracking Configuration.....................................................................................................................................529
Tracking a Layer 2 Interface.................................................................................................................................. 529
Tracking a Layer 3 Interface.................................................................................................................................. 530
Track an IPv4/IPv6 Route......................................................................................................................................532
Displaying Tracked Objects..........................................................................................................................................535
32 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 537
Protocol Overview.........................................................................................................................................................537
Autonomous System (AS) Areas...........................................................................................................................537
Area Types................................................................................................................................................................538
Networks and Neighbors........................................................................................................................................539
Router Types............................................................................................................................................................539
Designated and Backup Designated Routers....................................................................................................... 541
Link-State Advertisements (LSAs)........................................................................................................................541
Router Priority and Cost.........................................................................................................................................542
OSPF with Dell Networking OS...................................................................................................................................543
Graceful Restart...................................................................................................................................................... 544
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................. 545
Multi-Process OSPFv2 with VRF..........................................................................................................................545
OSPF ACK Packing.................................................................................................................................................545
18
Contents