Netgear XCM89UP Web Management User Guide - Page 268

OSPF Stub Area Configuration, Routing > OSPF > Advanced &gt

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M6100 Web Management User Guide Table 100. OSPF Common Area Configuration Field External Routing SPF Runs Area Border Router Count Area LSA Count Area LSA Checksum Flood List Length Import Summary LSAs Description A definition of the router's capabilities for the area, including whether or not AS-external-LSAs are flooded into/throughout the area. If the area is a stub area, then these are the possible options for which you may configure the external routing capability, otherwise the only option is Import External LSAs. • Import External LSAs - Import and propagate external LSAs. • Import No LSAs - Do not import and propagate external LSAs. The number of times that the intra-area route table has been calculated using this area's link-state database. This is typically done using Dijkstra's algorithm. The total number of area border routers reachable within this area. This is initially zero, and is calculated in each SPF Pass. The total number of link-state advertisements in this area's link-state database, excluding AS External LSAs. The 32-bit unsigned sum of the link-state advertisements' LS checksums contained in this area's link-state database. This sum excludes external (LS type 5) link-state advertisements. The sum can be used to determine if there has been a change in a router's link state database, and to compare the link-state database of two routers. This is the number of LSAs on this area's flood list. The summary LSAs will be enabled/disabled imported into this area. OSPF Stub Area Configuration  To display the OSPF Stub Area Configuration page, click Routing > OSPF > Advanced > Stub Area Configuration. The following page is displayed. Routing 268

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Routing
268
M6100 Web Management User Guide
Table 100.
OSPF Common Area Configuration
Field
Description
External Routing
A definition of the router's capabilities for the area,
including whether or not AS-external-LSAs are
flooded into/throughout the area. If the area is a stub
area, then these are the possible options for which
you may configure the external routing capability,
otherwise the only option is
Import External LSAs
.
Import External LSAs
Import and propagate
external LSAs.
Import No LSAs
Do not import and propagate
external LSAs.
SPF Runs
The number of times that the intra-area route table
has been calculated using this area's link-state
database. This is typically done using Dijkstra's
algorithm.
Area Border Router Count
The total number of area border routers reachable
within this area. This is initially zero, and is
calculated in each SPF Pass.
Area LSA Count
The total number of link-state advertisements in this
area's link-state database, excluding AS External
LSAs.
Area LSA Checksum
The 32-bit unsigned sum of the link-state
advertisements' LS checksums contained in this
area's link-state database. This sum excludes
external (LS type 5) link-state advertisements. The
sum can be used to determine if there has been a
change in a router's link state database, and to
compare the link-state database of two routers.
Flood List Length
This is the number of LSAs on this area's flood list.
Import Summary LSAs
The summary LSAs will be enabled/disabled
imported into this area.
OSPF Stub Area Configuration
To display the OSPF Stub Area Configuration page, click
Routing > OSPF > Advanced >
Stub Area Configuration
. The following page is displayed.