To allow or prevent load balancing to network 172.16.3.0/24, which of the following commands could be used in R2?
| A. |
R2(config-if)#clock rate | |
| B. |
R2(config-if)#bandwidth | |
| C. |
R2(config-if)#ip ospf cost | |
| D. |
R2(config-if)#ip ospf priority | |
| E. |
R2(config-router)#distance ospf |
The cost (also called metric) of an interface in OSPF is an indication of the overhead required to send packets across a certain interface. The cost of an interface is inversely proportional to the bandwidth of that interface. A higher bandwidth indicates a lower cost. There is more overhead (higher cost) and time delays involved in crossing a 56k serial line than crossing a 10M Ethernet line. The formula used to calculate the cost is:
cost= 100000000/bandwith in bps
By default, the cost of an interface is calculated based on the bandwidth; you can force the cost of an interface with the ip ospf cost