OSPF overview .................................................................................................................................. 128
Types of OSPF areas ..................................................................................................................... 128
Neighbors and adjacencies ........................................................................................................... 130
Link-State Database ....................................................................................................................... 130
Shortest Path First Tree ................................................................................................................... 130
Configurable parameters ............................................................................................................... 131
Defining areas .............................................................................................................................. 132
Assigning the area index .......................................................................................................... 132
Interface cost ................................................................................................................................ 133
Summarizing routes....................................................................................................................... 134
Default routes .................................................................................................................................... 134
Virtual links .................................................................................................................................. 135
Router ID...................................................................................................................................... 135
Authentication .............................................................................................................................. 136
OSPF configuration examples .............................................................................................................. 138
Example 2: Virtual links ................................................................................................................. 147
Other Virtual Link Options ......................................................................................................... 149
Introduction ....................................................................................................................................... 152
Overview.......................................................................................................................................... 152
RMON group 1-statistics ............................................................................................................. 152
RMON group 2-history................................................................................................................ 155
History MIB objects .................................................................................................................. 155
RMON group 3-alarms ............................................................................................................... 157
Alarm MIB objects.................................................................................................................... 157
RMON group 9-events ................................................................................................................ 161
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