Last Updated on July 31, 2021 by Admin 1
Which command should be executed on all ABRs in an area to configure it as a totally stubby area?
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Router(config-router)# area process-id stub [no-summary]
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Router(config-router)# area area-id [no-summary] stub
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Router(config-router)# area area-id stub [no-summary] -
Router(config-ospf)# area router-id [no-summary] stub
Explanation:
The correct syntax for the area stub command to configure a totally stubby area is shown below:Router(config-router)# area stub [no-summary]Note that the optional no-summary keyword is used only on area border routers (ABRs) to block summary link advertisements into the stub area. This option creates a totally stubby area. All internal routers in the area need only the stub keyword without the no summary keyword.It is very important to configure the command consistently on all routers within the area. OSPF sends its stub status (on or off) in its hello packets. If two neighbors have conflicting stub status, for example, if one indicates that a stub is present and the other indicates that no stub is present, they will not form an adjacency, and you end up with no OSPF communication over that link.The other options are either using incorrect syntax or being executed at an incorrect prompt. The area stub command should be executed at the OSPF router configuration prompt.
The correct syntax for the area stub command to configure a totally stubby area is shown below:Router(config-router)# area stub [no-summary]Note that the optional no-summary keyword is used only on area border routers (ABRs) to block summary link advertisements into the stub area. This option creates a totally stubby area. All internal routers in the area need only the stub keyword without the no summary keyword.It is very important to configure the command consistently on all routers within the area. OSPF sends its stub status (on or off) in its hello packets. If two neighbors have conflicting stub status, for example, if one indicates that a stub is present and the other indicates that no stub is present, they will not form an adjacency, and you end up with no OSPF communication over that link.The other options are either using incorrect syntax or being executed at an incorrect prompt. The area stub command should be executed at the OSPF router configuration prompt.
Objective:
Layer 3 Technologies
Sub-Objective:
Configure and verify network types, area types, and router types
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