A、until the hello dead timer expires
B、until the restart duration timer expires
C、until the restarting router sets the down bit
D、until the restart helper sends out three CSNPs
更多“In IS-IS, how long will the restart helper keep the restarting router in the up state?（）”相关的问题
A、until the hello dead timer expires B、until the restart duration timer expires C、until the restarting router sets the down bit D、until the restart helper sends out three CSNPs
A、No action required, wide metrics are used by default in IS-IS. B、Enable wide-metrics-only under protocols IS-IS. C、Enable traffic-engineering under protocols IS-IS. D、Disable TLVs 2 and 128 which carry the 6-bit metrics (0-63).
A、It is the size of the RSVP hello packet B、It is how long it maintains RSVP neighbors C、It is the length of time between RSVP hello packets D、It is how long the router waits before declaring a router to be down
A、IS-IS路由的不同分层的边界是部署在互连不同层次路由器之间的链路 B、IS-IS路由协议的不同分层的边界是部署Level1路由器上 C、IS-IS路由协议的不同分层的边界是部署Level2路由器上 D、IS-IS路由协议的不同分层的边界是部署Level1/2路由器上
A、Nothing， wide metrics are used by default in IS-IS B、Enable wide-metrics-only under protocol IS-IS C、Enable traffic-engineering under protocols IS-IS D、Disable TVL’s 2 and 128 which carry the 6-bit metrics （0-63）.
A、IS-IS运行在传输层，OSPF运行在网络层，二者都使用SPF算法 B、一台IS-IS路由器只能属于一个区域，而一台OSPF路由器的不同接口可以属于多个区域 C、IS-IS在扩展性上比OSPF好，但OSPF应用更广泛 D、IS-IS的骨干区域必须是Area0，而且必须是连续的
A、在接口下使能IS-IS B、需要在接口下划分子接口，将每个子接口对应一个邻居，在子接口上使能IS-IS C、需要在接口下将IS-IS网络类型配置为Broadcast D、需要在接口下将IS-IS网络类型配置为P2P
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