What does the value 110 represent in the output?

Last Updated on August 7, 2021 by Admin 3

Below is the output of the show ip route command from one of your routers:

200-301 Part 03 Q06 023
200-301 Part 03 Q06 023

What does the value 110 represent in the output?

  •  OSPF administrative distance
  • EIGRP administrative distance
  • OSPF cost
  • EIGRP cost
Explanation:
The value of 110 represents the administrative distance of the route, which in this case was learned by OSPF. OSPF routes are always indicated by an O to the left of the route details. The two values in brackets in each route entry indicate the administrative distance on the left of the forward slash. The value to the right of the slash is the cost of the route. Therefore, [110/2] represents an administrative distance of 110 and a cost of 2.

The value of 110 does not represent EIGRP administrative distance because the route was not learned from EIGRP. If it were, the route would have a D to the left of the route details. Moreover, the default administrative distance of EIGRP is 90, not 110.

The values do not represent OSPF cost. The cost value is on the right side of the forward slash within the brackets in each route entry. For example, the route entry O 1.1.1.4 [110/2] via 1.1.1.2, 00:10:04, FastEthernet0/1 indicates an OSPF cost of 2.

The values do not represent an EIGRP cost. First, if it were an EIGRP route, the route would have a D to the left of the route details. Moreover, the cost value is located within the square brackets to the right of the forward slash in each route entry. The only cost values shown in the table are 2, 11, and 12.

Objective:
Routing Fundamentals
Sub-Objective:
Describe how a routing table is populated by different routing information sources

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