Administrator Guide

38 Contents
IP Helper Global Configuration . . . . . . . . . . 1170
IP Helper Interface Configuration
. . . . . . . . 1172
IP Helper Statistics . . . . . . . . . . . . . . . . 1174
Configuring L2 and L3 Relay Features (CLI)
. . . . . . 1175
Configuring L2 DHCP Relay
. . . . . . . . . . . . 1175
Configuring L3 Relay (IP Helper) Settings
. . . . 1177
Relay Agent Configuration Example
. . . . . . . . . . 1179
35 OSPF and OSPFv3 . . . . . . . . . . . . . . . . 1181
OSPF Overview. . . . . . . . . . . . . . . . . . . . . 1182
What Are OSPF Areas and Other OSPF
Topology Features?
. . . . . . . . . . . . . . . . 1182
What Are OSPF Routers and LSAs?
. . . . . . . 1183
How Are Routes Selected?
. . . . . . . . . . . . 1183
How Are OSPF and OSPFv3 Different?
. . . . . . 1183
OSPF Feature Details
. . . . . . . . . . . . . . . . . . 1184
Max Metric
. . . . . . . . . . . . . . . . . . . . 1184
Static Area Range Cost
. . . . . . . . . . . . . . 1186
LSA Pacing . . . . . . . . . . . . . . . . . . . . 1187
Flood Blocking
. . . . . . . . . . . . . . . . . . 1188
MTU
. . . . . . . . . . . . . . . . . . . . . . . . 1189
Default OSPF Values
. . . . . . . . . . . . . . . . . . 1190
Configuring OSPF Features (Web)
. . . . . . . . . . . 1192
OSPF Configuration
. . . . . . . . . . . . . . . . 1192
OSPF Area Configuration
. . . . . . . . . . . . . 1193
OSPF Stub Area Summary
. . . . . . . . . . . . 1196
OSPF Area Range Configuration . . . . . . . . . 1197
OSPF Interface Statistics
. . . . . . . . . . . . . 1198
OSPF Interface Configuration
. . . . . . . . . . . 1199
OSPF Neighbor Table . . . . . . . . . . . . . . . 1200