フリー問題

問題文

A switch with a small store of label values sits in a core where every peer offers label bindings for every range without being asked. The operator turns on Conservative Label Retention. Later the routing changes the peer that leads towards one range. The design note has to record what the switch is then left holding out of all it was offered, and how soon labeled traffic for that range moves again. Which pair belongs in the design note?

選択肢

1. The LDP keeper holds the onwards keeping, and one shifted next hop gives the instant restart regardless.
2. The LDP keeper holds the allcomers keeping, and one shifted next hop gives the instant restart regardless.
3. The LDP keeper holds the allcomers keeping, and one shifted next hop gives the newlabel restart regardless.
4. The LDP keeper holds the onwards keeping, and one shifted next hop gives the newlabel restart regardless.