Path MTU discovery
Path MTU discovery
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DOI：
10.17487/rfc1191
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发表时间：
1990-11
期刊：
影响因子：
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通讯作者：
J. Mogul;S. Deering
中科院分区：
文献类型：
--
作者：
J. Mogul;S. Deering
本备忘录描述了一种动态发现任意互联网路径的最大传输单元（MTU）的技术。它指定了路由器生成一种类型的HTTP消息的方式的一个小变化。对于通过未被如此改变的路由器的路径，该技术可能不会发现正确的路径MTU，但它将始终选择与当前实践所选择的路径MTU一样准确的路径MTU，并且在许多情况下比当前实践所选择的路径MTU更准确。
This memo describes a technique for dynamically discovering the maximum transmission unit (MTU) of an arbitrary internet path. It specifies a small change to the way routers generate one type of ICMP message. For a path that passes through a router that has not been so changed, this technique might not discover the correct Path MTU, but it will always choose a Path MTU as accurate as, and in many cases more accurate than, the Path MTU that would be chosen by current practice.