接口的优先级prio是priority的缩写，那右边的NBR是什么意思？

ccnafasttrack

接口的优先级prio是priority的缩写，那右边的NBR是什么意思？

bw126

右边的就是接口的号码啊，有时候会是接口的物理号码加上一个值，不过也是会按顺序的。
128.1    .1你是无法改变的，但是你可以更改128这个值来调整STP行为。

fangmu

port-id

Rockyw

原来如此！

dingjerry

NBR实际上是Neighbor的缩写。  整个prio.nbr是优先级+端口号。

来一段英文啊：

the port priority and internal port number come into play as tiebreakers when a switch is choosing it's root port as follows: the first choice is the local port that's part of the least root cost path. If those costs tie, then the choice is made based on:
1. lowest neighbor bridge ID, if tie, then...
2. lowest neighbor port priority, if tie, then...
3. lowest neighbor internal port number

Note that items 2 & 3 only come into play when two switches connect to each other with multiple links, because in that case, a switch is receiving hellos on more than one port from the same neighboring switch so the bridge ID's tie.

Source: ICND2 p. 64 & 65

ccnafasttrack

bw126 发表于 2016-7-9 19:00
右边的就是接口的号码啊，有时候会是接口的物理号码加上一个值，不过也是会按顺序的。
128.1    .1你是无 ...

128是优先级，.1是接口编号，那NBR呢？

ccnafasttrack

dingjerry 发表于 2016-7-10 00:18
NBR实际上是Neighbor的缩写。  整个prio.nbr是优先级+端口号。

来一段英文啊：

那这就是PID啊，NBR原来是number的缩写。