Chapter 14 Routing

OSPF Status

Import AS Extern—The area's support for importing AS external link-state advertisements.

SPF Runs—The number of times that the intra-area route table has been calculated using this area's link-state database.

Area Border Router Count—The total number of area border routers reachable within this area.

AS Border Router Count—The total number of Autonomous System border routers reachable within this area.

Area LSA Count—The total number of link-state advertisements in this area's link-state database, excluding AS External LSA's.

Area LSA Checksum—Link-state advertisements' LS checksums contained in this area's link-state database.

Stub Area

Stub TOS—The Type of Service associated with the metric.

Stub Area ID—Unique identifier for a Stub area.

Stub Metric—The metric value applied at the indicated type of service. By default, this equals the least metric at the type of service among the interfaces to other areas.

Stub Status—This variable displays the validity or invalidity of the entry. When this value is set to invalid, it has the effect of rendering it inoperative.

Area Range

Area Range ID—The Area the Address Range is to be found within.

Area Range Net—The IP Address of the Net or Subnet indicated by the range.

Area Range Mask—The Subnet Mask that pertains to the Net or Subnet.

Area Range Status—Displays the validity or invalidity of the entry. When this value is set to invalid, it has the effect of rendering it inoperative.

Interface

The Interface tab displays three areas: Interface, Interface Metric and Virtual Interface.

Interface

Addressless Interface—Differentiates the addressless interfaces from the addressed interfaces. When the value is set to zero, it signifies that the interface has an IP address.

Interface IP Address—The IP address of the OSPF interface.

Interface Area ID—Unique identifier of the area to which the interface connects. Area ID 0.0.0.0 is used for the OSPF backbone.

Interface Type—The type of the Interface.

Interface Admin Status—The OSPF interface's administrative status. When the value is set to enabled, it signifies that the neighbor relationships may be formed on the interface, and the interface is advertised as an internal route to some area. When the value is set to disabled, it signifies that the interface is external to OSPF.

Router Priority—The priority of this interface. When the value is set to 0, it signifies that the router is not eligible to become the designated router on this particular network.

 

 

Cisco 12000/10700 v3.1.1 Router Manager User Guide

 

 

 

 

 

 

OL-4455-01

 

 

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Cisco Systems 12000/10700 V3.1.1 manual Interface, Stub Area, Area Range, 14-63