OSPF overview .................................................................................................................................. 131
Types of OSPF areas ..................................................................................................................... 131
Neighbors and adjacencies ........................................................................................................... 133
Link-State Database ....................................................................................................................... 133
Shortest Path First Tree ................................................................................................................... 133
Configurable parameters ............................................................................................................... 134
Defining areas .............................................................................................................................. 135
Assigning the area index .......................................................................................................... 135
Interface cost ................................................................................................................................ 136
Summarizing routes....................................................................................................................... 137
Default routes .................................................................................................................................... 137
Virtual links .................................................................................................................................. 138
Router ID...................................................................................................................................... 138
Authentication .............................................................................................................................. 139
OSPF configuration examples .............................................................................................................. 141
Example 2: Virtual links ................................................................................................................. 150
Other Virtual Link Options ......................................................................................................... 152
Introduction ....................................................................................................................................... 155
Overview.......................................................................................................................................... 155
RMON group 1-statistics ............................................................................................................. 155
RMON group 2-history................................................................................................................ 158
History MIB objects .................................................................................................................. 159
RMON group 3-alarms ............................................................................................................... 161
Alarm MIB objects.................................................................................................................... 161
RMON group 9-events ................................................................................................................ 165
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