Administrator Guide

Congure the switch as a querier..........................................................................................................................667
Specify port as connected to multicast router.................................................................................................... 667
Enable Snooping Explicit Tracking.........................................................................................................................668
Display the MLD Snooping Table........................................................................................................................... 668
35 Object Tracking....................................................................................................................................... 669
Object Tracking Overview............................................................................................................................................ 669
Track Layer 2 Interfaces..........................................................................................................................................670
Track Layer 3 Interfaces..........................................................................................................................................670
Track IPv4 and IPv6 Routes.................................................................................................................................... 671
Track a Metric Threshold.........................................................................................................................................671
Tracking a Metric Threshold....................................................................................................................................671
Track Route Reachability.........................................................................................................................................673
Tracking Route Reachability....................................................................................................................................673
Conguring track reachability refresh interval......................................................................................................674
Set Tracking Delays................................................................................................................................................. 675
VRRP Object Tracking.............................................................................................................................................675
Object Tracking Conguration......................................................................................................................................675
Tracking a Layer 2 Interface................................................................................................................................... 675
Tracking a Layer 3 Interface................................................................................................................................... 676
Conguring track reachability refresh interval......................................................................................................678
Displaying Tracked Objects........................................................................................................................................... 678
36 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 680
Protocol Overview.........................................................................................................................................................680
Autonomous System (AS) Areas........................................................................................................................... 680
Area Types................................................................................................................................................................. 681
Networks and Neighbors........................................................................................................................................ 682
Router Types............................................................................................................................................................ 682
Designated and Backup Designated Routers....................................................................................................... 684
Link-State Advertisements (LSAs)........................................................................................................................684
Virtual Links..............................................................................................................................................................685
Router Priority and Cost.........................................................................................................................................685
OSPF Implementation................................................................................................................................................... 686
Fast Convergence (OSPFv2, IPv4 Only).............................................................................................................. 687
Multi-Process OSPFv2 (IPv4 only)....................................................................................................................... 687
RFC-2328 Compliant OSPF Flooding....................................................................................................................687
OSPF ACK Packing................................................................................................................................................. 688
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 688
Conguration Information.............................................................................................................................................689
Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 689
Sample Congurations for OSPFv2............................................................................................................................. 701
Basic OSPFv2 Router Topology..............................................................................................................................701
OSPF Area 0 — Te 1/1 and 1/2..............................................................................................................................702
OSPF Area 0 — Te 3/1 and 3/2............................................................................................................................ 702
OSPF Area 0 — Te 2/1 and 2/2............................................................................................................................703
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