フリー問題

問題文

A ring of routers shares one conduit and the computed backup path turns out to run through the same conduit. Which statement is correct?

選択肢

1. The single group collection that matters during the computation is the remote one, the collection that each node in the topology is associated with is the one that traffic would cross when it is forwarded through a given neighbor, and the changes that the computing router has to handle correctly are changes in the group ordering of its own links.
2. The single group collection that matters during the computation is the local one, the collection that each node in the topology is associated with is the one that traffic would cross when it is forwarded through a given neighbor, and the changes that the computing router has to handle correctly are changes in the group membership of its own links.
3. The single group collection that matters during the computation is the remote one, the collection that each node in the topology is associated with is the one that traffic would cross when it is forwarded through a given area, and the changes that the computing router has to handle correctly are changes in the group membership of its own links.
4. The single group collection that matters during the computation is the local one, the collection that each node in the topology is associated with is the one that traffic would cross when it is forwarded through a given area, and the changes that the computing router has to handle correctly are changes in the group ordering of its own links.