公开(公告)号：US20080101382A1

公开(公告)日：2008-05-01

申请号：US11553020

申请日：2006-10-26

申请人： Dwip N. Bannerjee ,  Gopala K. Shantala ,  Venkat Venkatsubra

发明人： Dwip N. Bannerjee ,  Gopala K. Shantala ,  Venkat Venkatsubra

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L47/193 ,  H04L47/36

摘要： A method for efficiently determining the path maximum transmission unit (MTU) during a handshake between a source host and a target host across a computer network. During the handshake, each router receives the SYN (synchronization) packet transmitted from the source host, and each router updates the value of the path MTU within the SYN packet when the path MTU value is greater than the MTU of the router. When the SYN packet reaches the target host, the target host also updates the value of the path MTU if the value of the path MTU within the SYN packet is greater than that of the target host. With this sequential checking and updating of the path MTU against their MTUs, the combination of the routers en-route and the target host ensures that the final path MTU is equal to or smaller than the smallest MTU of the various components/networks along the path.

摘要翻译： 一种用于在通过计算机网络的源主机和目标主机之间的握手期间有效地确定路径最大传输单元（MTU）的方法。 在握手过程中，每个路由器收到从源主机发送的SYN（同步）报文，当路由MTU值大于路由器的MTU值时，每个路由器都更新SYN报文中的路径MTU值。 当SYN数据包到达目标主机时，如果SYN数据包中路径MTU的值大于目标主机的值，目标主机也会更新路径MTU的值。 通过对其MTU的路径MTU的顺序检查和更新，路由器路由和目标主机的组合确保最终路径MTU等于或小于沿着路径的各种组件/网络的最小MTU 。