Configuring OSPF on the Routing Switch . . . . . . . . . . . . . . . . . . . . . . 5-62
1. Enable IP Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-62
2. Enable Global OSPF Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-62
3. Changing the RFC 1583 OSPF Compliance Setting . . . . . . . . . 5-63
4. Assign the Routing Switch to OSPF Areas . . . . . . . . . . . . . . . . 5-65
5. Assign VLANs and/or Subnets to Each Area . . . . . . . . . . . . . . 5-69
6. Optional: Assigning Loopback Addresses to an Area . . . . . . . 5-71
7. Optional: Configure for External Route Redistribution in
an OSPF Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-73
8. Optional: Configure Ranges on an ABR To Reduce
Advertising to the Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-76
9. Optional: Influence Route Choices by Changing the
Administrative Distance Default . . . . . . . . . . . . . . . . . . . . . . . . . . 5-79
10: Optional: Change OSPF Trap Generation Choices . . . . . . . . 5-80
11. Optional: Adjust Performance by Changing the VLAN
or Subnet Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-81
12. Optional: Configuring OSPF Interface Authentication . . . . . . . . . 5-86
13. Configuring an ABR To Use a Virtual Link to the Backbone . . . . 5-88
Optional: Adjust Virtual Link Performance by Changing
Displaying OSPF Interface Information for a Specific VLAN
Configuring a Virtual Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-89
the Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-90
Configuring OSPF Authentication on a Virtual Link . . . . . . . . . . 5-93
OSPF Passive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-96
Displaying OSPF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-97
Displaying General OSPF Configuration Information . . . . . . . . . 5-98
Displaying OSPF Area Information . . . . . . . . . . . . . . . . . . . . . . . . 5-99
Displaying OSPF External Link State Information . . . . . . . . . . 5-100
Displaying OSPF Interface Information . . . . . . . . . . . . . . . . . . . 5-102
or IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-104
Displaying OSPF Packet Statistics for a Subnet or VLAN . . . . 5-105
Displaying OSPF Link State Information . . . . . . . . . . . . . . . . . . 5-108
Displaying OSPF Neighbor Information . . . . . . . . . . . . . . . . . . . 5-111
Displaying OSPF Redistribution Information . . . . . . . . . . . . . . . 5-113
Displaying OSPF Redistribution Filter (restrict) Information . 5-113
Displaying OSPF Virtual Neighbor Information . . . . . . . . . . . . . 5-114
Displaying OSPF Virtual Link Information . . . . . . . . . . . . . . . . . 5-115
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