Administrator Guide

Conguring an EdgePort.............................................................................................................................................. 575
Flush MAC Addresses after a Topology Change........................................................................................................576
MSTP Sample Congurations...................................................................................................................................... 576
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration....................................................................................... 577
Debugging and Verifying MSTP Congurations........................................................................................................ 580
33 Multicast Features................................................................................................................................... 582
Enabling IP Multicast.....................................................................................................................................................582
Implementation Information..........................................................................................................................................582
Multicast Policies...........................................................................................................................................................583
IPv4 Multicast Policies............................................................................................................................................583
Understanding Multicast Traceroute (mtrace).......................................................................................................... 590
Important Points to Remember..............................................................................................................................591
Printing Multicast Traceroute (mtrace) Paths............................................................................................................ 591
Supported Error Codes................................................................................................................................................. 592
mtrace Scenarios...........................................................................................................................................................593
34 Object Tracking....................................................................................................................................... 599
Object Tracking Overview............................................................................................................................................ 599
Track Layer 2 Interfaces......................................................................................................................................... 600
Track Layer 3 Interfaces......................................................................................................................................... 600
Track IPv4 and IPv6 Routes....................................................................................................................................601
Set Tracking Delays................................................................................................................................................. 602
VRRP Object Tracking............................................................................................................................................ 602
Object Tracking Conguration..................................................................................................................................... 602
Tracking a Layer 2 Interface................................................................................................................................... 602
Tracking a Layer 3 Interface................................................................................................................................... 603
Track an IPv4/IPv6 Route......................................................................................................................................605
Displaying Tracked Objects...........................................................................................................................................608
35 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 610
Protocol Overview..........................................................................................................................................................610
Autonomous System (AS) Areas............................................................................................................................ 610
Area Types..................................................................................................................................................................611
Networks and Neighbors.........................................................................................................................................612
Router Types............................................................................................................................................................. 612
Designated and Backup Designated Routers........................................................................................................614
Link-State Advertisements (LSAs).........................................................................................................................614
Router Priority and Cost..........................................................................................................................................615
OSPF with Dell Networking OS....................................................................................................................................616
Graceful Restart....................................................................................................................................................... 617
Fast Convergence (OSPFv2, IPv4 Only)...............................................................................................................618
Multi-Process OSPFv2 with VRF...........................................................................................................................618
OSPF ACK Packing..................................................................................................................................................618
Setting OSPF Adjacency with Cisco Routers.......................................................................................................618
20
Contents