DGS-3312SR Stackable Gigabit Layer 3 Switch
148
OSPF Area Aggregation Settings
Area Aggregation allows all of the routing information that may be contained within an area to be aggregated into a
summary LSDB advertisement of just the network address and subnet mask. This allows for a reduction in the volume of
LSDB advertisement traffic as well as a reduction in the memory overhead in the Switch used to maintain routing tables.
Click the
OSPF Area Aggregation Settings
link to view the current settings. There are no aggregation settings configured
by default, so there will not be any listed the first accessing the window. To add a new OSPF Area Aggregation setting,
click the
Add
button. A new window (pictured below) appears. To change an existing configuration, click on the
hyperlinked Area ID for the set you want to change. The window to modify an existing configuration is the same as the
window used to add a new one. To eliminate an existing configuration, click the
X
in the Delete column for the
configuration being removed.
Figure 5- 37. OSPF Area Aggregation Settings window
Use the window below to change settings or add a new Area Aggregation setting.
Figure 5- 38. OSPF Aggregation Configuration – Add window
Specify the OSPF Aggregation settings and click the
Apply
button to add or change the settings. The new settings will
appear listed in the
OSPF Area Aggregation Settings
window. To view the table, click the
Show All OSPF Aggregation
Entries
link to return to the previous window.
Configure the following settings for
OSPF Area Aggregation
:
Parameter
Description
Area ID
Allows the entry the OSPF Area ID for which the routing information will be
aggregated. This Area ID must be previously defined on the Switch.
Network Number
Sometimes called the Network Address. The 32-bit number in the form of an IP
address that uniquely identifies the network that corresponds to the OSPF Area
above.
Network Mask
The corresponding network mask for the Network Number specified above.
LSDB Type
Specifies the type of address aggregation, which is set at
Summary
.
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Select
Enabled
or
Disabled
to determine whether the selected OSPF Area will
advertise it’s summary LSDB (Network-Number and Network-Mask).
