liubin0521 发表于 2011-12-1 11:25:36

902题库V200 Q53,关于修改K2值对EIGRP的影响

本帖最后由 sdwchow 于 2011-12-1 14:11 编辑

Which statement about a non-zero value for the load metric (k2) for EIGRP is true? Select the best
response.
A. A change in the load on an interface will cause EIGRP to recalculate the routing metrics
and send a corresponding update out to each of its neighbors.
B. EIGRP calculates interface load as a 5-minute exponentially weighted average that is updated every 5
minutes.
C. EIGRP considers the load of an interface only when sending an update for some other reason.
D. A change in the load on an interface will cause EIGRP to recalculate and update the administrative
distance for all routes learned on that interface.
Answer: C
Section: EIGRP
Explanation/Reference:
考点:EIGRP的度量值
基本概念，EIGRP只在发送出站更新的时候才考虑负载这个度量值。

上述为题库内容，但我听李桃梅老师的讲课视频是讲路由器在计算metric时，是以路由流向的入接口各项指标进行计算的。
所以对于非零的K2值，从一个接口收到路由更新时会考虑此接口的load值，但从此接口发出路由更新时，此接口的load值不应该被考虑啊。
基于上述原因，我觉得选A更合适。

liubin0521 发表于 2011-12-1 12:01:45

明白了，你解释得很好

无尘1990 发表于 2012-3-17 20:27:46

{:6_267:}{:6_290:}

爱兜兜 发表于 2012-3-17 13:37:08

{:6_263:}

左看又看 发表于 2012-4-15 22:16:47

讲的很明白！{:6_267:}
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