You are asked to configure a new LSP in your network. The new LSP must take a specific path using a given set of routers.
What must you do to accomplish this task?
Click on the arrows to vote for the correct answer
A. B. C. D.A
To configure a new LSP (Label Switched Path) that follows a specific path using a given set of routers, you need to define a named path and reference it as either primary or preferred for the LSP.
Option A: A named path must be defined and referenced as primary for the LSP. This option is correct because the primary path is the preferred path for the LSP, and it is used by default if it is available. If the primary path is not available, then the LSP can switch to the secondary path.
Option B: A named path must be defined and referenced as preferred for the LSP. This option is also correct because the preferred path is an alternate path that the LSP can use if the primary path is not available. However, the preferred path is not used by default like the primary path.
Option C: A named path must be defined and given a low priority. This option is incorrect because the priority of a named path is used to determine the order of preference between different paths. A lower priority means that the path is used only if higher-priority paths are not available.
Option D: A named path must be defined and given a high priority. This option is incorrect because a higher priority does not necessarily mean that the LSP will follow that path. The priority of a path is just one factor used to determine the order of preference between paths.
In conclusion, the correct answer is either A or B. You need to define a named path and reference it as either primary or preferred for the LSP to ensure that it follows a specific path using a given set of routers.