Tuesday, August 11, 2020

Introduction for A Packet‘s Adventures on Huawei Routers

Modern networks may require an array of high, medium, and low-level routers, each with differing functions and applications. This document explains how Huawei router (such as NE40E, NE80E, and NE5000E) operate.

Where Does the Data Go After Being "Swallowed" by a Router?

A router continually swallows and passes communication date.




Where does data go after being swallowed by a router?
Most data input to a router from one interface is output through another interface. These data packets are only "passers-by" and therefore also called pass-by packets. A small portion of data is "absorbed" - either sent to the CPU or dropped in transit.

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Router Forwarding Panorama
These processes are explained further throughout the following chapters.
The following figure shows how a router forwards service and protocol packets.

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The following figure shows how a router's CPU forwards a protocol packet.

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