Cisco Cisco FirePOWER Appliance 7010
9-20
FireSIGHT System User Guide
Chapter 9 Setting Up Virtual Routers
Configuring Virtual Routers
Step 11
Click
Save
.
Your changes are saved. Note that your changes do not take effect until you apply the device
configuration; see
configuration; see
.
Setting Up OSPF Configuration
License:
Control
Supported Devices:
Series 3
Open Shortest Path First (OSPF) is an adaptive routing protocol that defines routes dynamically by
obtaining information from other routers and advertising routes to other routers using link state
advertisements. The router keeps information about the links between it and the destination to make
routing decisions. OSPF assigns a cost to each routed interface, and considers the best routes to have the
lowest costs.
obtaining information from other routers and advertising routes to other routers using link state
advertisements. The router keeps information about the links between it and the destination to make
routing decisions. OSPF assigns a cost to each routed interface, and considers the best routes to have the
lowest costs.
See the following sections for more information:
•
•
•
Setting Up OSPF Routing Areas
License:
Control
Supported Devices:
Series 3
An OSPF network may be structured, or subdivided, into routing areas to simplify administration and
optimize traffic and resource use. Areas are identified by 32-bit numbers, expressed either simply in
decimal or often in octet-based dot-decimal notation.
optimize traffic and resource use. Areas are identified by 32-bit numbers, expressed either simply in
decimal or often in octet-based dot-decimal notation.
By convention, area zero or 0.0.0.0 represents the core or backbone region of an OSPF network. You
may choose to identify other areas. Often, administrators select the IP address of a main router in an area
as the area's identification. Each additional area must have a direct or virtual connection to the backbone
OSPF area. Such connections are maintained by an interconnecting router, known as the area border
router (ABR). An ABR maintains separate link state databases for each area it serves and maintains
summarized routes for all areas in the network.
may choose to identify other areas. Often, administrators select the IP address of a main router in an area
as the area's identification. Each additional area must have a direct or virtual connection to the backbone
OSPF area. Such connections are maintained by an interconnecting router, known as the area border
router (ABR). An ABR maintains separate link state databases for each area it serves and maintains
summarized routes for all areas in the network.
See the following sections for more information on setting up OSPF areas:
•
•
•
Adding OSPF Areas
License:
Control
Supported Devices:
Series 3
The following procedure explains how to add an OSPF area and configure general settings.