Hirschmann HiSecOS EAGLE30 - OSPF Areas

Routing > OSPF > Areas
Routing
RM GUI HiSecOS EAGLE20/30
Release 3.0 09/2015
311
Routing > OSPF > Areas
8.11 OSPF Areas
OSPF supports networks divided into "Areas" and thus reduces the
administrative effort when maintaining the network. The routers participating
in the network know and only manage their own "Area" by flooding Link State
Advertisements (LSAs) into the area. Using the LSAs each router builds its
own topology database.
The device allows you to specify up to a maximum of 64 OSPF Areas.
 Table
Parameters Meaning
Area ID Specifies the area ID for the new table entry.
Possible values:
 Range area IDs
Area Type Specifies the import policy of AS external LSAs for the area which
determines the Area Type.
OSPF import policies apply to external routes only. An external route is a
route that is outside the OSPF autonomous system.
Possible values:
 Area (default setting)
The router imports type 5 AS external LSAs into the area.
 Stub Area
The router ignores type 5 AS external LSAs.
 NSSA
The router translates type 7AS external LSAs into type 5 NSSA
summary LSAs and imports them into the area.
SPF Runs Displays the number of times that the router calculated the intra-area
routing table using the link state database of this area. The router uses
Dijkstra's algorithm for route calculation.
Area Border
Router count
Displays the total number of ABRs reachable within this area. The number
of reachable routers is initially 0, and OSPF calculates the number in each
SPF Pass.
AS Border Router
count
Displays the total number of ASBRs reachable within this area. The number
of reachable ASBRs is initially zero, and OSPF calculates the number in
each SPF Pass.