Setup Guide

Disable MLD Snooping............................................................................................................................................669
Congure the switch as a querier..........................................................................................................................669
Specify port as connected to multicast router.................................................................................................... 669
Enable Snooping Explicit Tracking......................................................................................................................... 670
Display the MLD Snooping Table........................................................................................................................... 670
35 Object Tracking........................................................................................................................................ 671
Object Tracking Overview............................................................................................................................................. 671
Track Layer 2 Interfaces..........................................................................................................................................672
Track Layer 3 Interfaces..........................................................................................................................................672
Track IPv4 and IPv6 Routes................................................................................................................................... 673
Track a Metric Threshold........................................................................................................................................ 673
Tracking a Metric Threshold................................................................................................................................... 673
Track Route Reachability.........................................................................................................................................675
Tracking Route Reachability................................................................................................................................... 675
Conguring track reachability refresh interval......................................................................................................676
Set Tracking Delays..................................................................................................................................................677
VRRP Object Tracking.............................................................................................................................................677
Object Tracking Conguration......................................................................................................................................677
Tracking a Layer 2 Interface....................................................................................................................................677
Tracking a Layer 3 Interface....................................................................................................................................678
Conguring track reachability refresh interval..................................................................................................... 680
Displaying Tracked Objects...........................................................................................................................................680
36 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................682
Protocol Overview......................................................................................................................................................... 682
Autonomous System (AS) Areas........................................................................................................................... 682
Area Types................................................................................................................................................................ 683
Networks and Neighbors........................................................................................................................................684
Router Types............................................................................................................................................................ 684
Designated and Backup Designated Routers.......................................................................................................686
Link-State Advertisements (LSAs)........................................................................................................................686
Virtual Links.............................................................................................................................................................. 687
Router Priority and Cost......................................................................................................................................... 687
OSPF Implementation................................................................................................................................................... 688
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................689
Multi-Process OSPFv2 (IPv4 only)....................................................................................................................... 689
RFC-2328 Compliant OSPF Flooding................................................................................................................... 689
OSPF ACK Packing................................................................................................................................................. 690
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 690
Conguration Information..............................................................................................................................................691
Conguration Task List for OSPFv2 (OSPF for IPv4)......................................................................................... 691
Sample Congurations for OSPFv2.............................................................................................................................703
Basic OSPFv2 Router Topology............................................................................................................................. 703
OSPF Area 0 — Te 1/1 and 1/2............................................................................................................................. 704
OSPF Area 0 — Te 3/1 and 3/2............................................................................................................................ 704
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Contents