問題文
Bridges that lean on a spanning tree peek at the control messages of a group in order to trim where the data of that group is sent. What does that trimming rest on, and what can befall the data when the shape of the network changes between two such messages?
選択肢
- The trimming rests on the traffic that the bridges have told one another about, and the data of that group can be sent to the wrong ports and lost
- The trimming rests on the traffic that the bridges have told one another about, and the data of that group waits in line until the state is drawn
- The trimming rests on the traffic that this one bridge has seen on its own ports, and the data of that group waits in line until the state is drawn
- The trimming rests on the traffic that this one bridge has seen on its own ports, and the data of that group can be sent to the wrong ports and lost