While there is wide disagreement as to the composition and purpose of an ESB, most can agree on a set of core capabilities including service addressing, message transformations and message routing.

然而对于ESB的组成和目的方面有很多不同意见，但得到大部分人肯定的是它的一组核心功能，包括服务寻址、消息转换和消息路由。

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This document is designed to give the reader a working knowledge of TCP/IP subnetting, addressing, and routing. It is not intended to be complete, or to cover all issues.

本文档写作目的是让读者对TCP/IP 子网、寻址和路由有一个正确的了解，它不会非常完整或者涉及到所有问题。

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Routing and addressing services providing location transparency.

提供位置透明性的路由和寻址服务。

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