非管理型 IE 交換機6GK5106-1BB00-2AA3備件

非管理型 IE 交換機6GK5106-1BB00-2AA3備件

非管理型交換機，也稱為非網(wǎng)管型交換機，它是一種工作在OSI網(wǎng)絡(luò)參考模型第二層（數(shù)據(jù)鏈路層）的網(wǎng)絡(luò)交換設(shè)備。非管理型交換機的數(shù)據(jù)轉(zhuǎn)發(fā)是基于MAC地址的，它可以識別數(shù)據(jù)包中的MAC地址，并根據(jù)其內(nèi)部保存的MAC地址表將數(shù)據(jù)發(fā)送到相應的端口（初始狀態(tài)，當MAC地址表為空的時候，交換機會將數(shù)據(jù)廣播到所有的端口。隨著數(shù)據(jù)的發(fā)送和接受，逐步建立MAC地址與端口的關(guān)系，并根據(jù)實際情況及時更新）。

非管理型交換機屬于即插即用設(shè)備，不支持路由管理；不能劃分VLAN；由于不識別IP報頭，所有節(jié)點只能劃分到同一個子網(wǎng)中；

非管理型交換機6GK5106-1BB00-2AA3價格相對便宜，使用方便，適合用于設(shè)備內(nèi)部網(wǎng)絡(luò)，比如PROFINET各網(wǎng)絡(luò)節(jié)點的數(shù)據(jù)交換。

2、管理型交換機

管理型交換機也稱為網(wǎng)管型交換機，它是相對與非管理型交換機而言的。管理型交換機工作在OSI網(wǎng)絡(luò)參考模型的第三層（網(wǎng)絡(luò)層），支持VLAN劃分，支持路由功能，6GK5106-1BB00-2AA3支持SNMP協(xié)議（簡單網(wǎng)絡(luò)管理協(xié)議），可以通過web來進行配置。

能劃分VLAN是管理型交換機的特點之一。VLAN是英文"Virtual Local Area Network"的縮寫，中文翻譯為"虛擬局域網(wǎng)"。

通過劃分VLAN，可以將交換機所連接的局域網(wǎng)從邏輯上劃分成不同的子網(wǎng)（Subnet），各子網(wǎng)之間不能直接通信，從而有效的隔離網(wǎng)絡(luò)風暴，增強了網(wǎng)絡(luò)的安全性。VLAN還增加了網(wǎng)絡(luò)管理的靈活性，只需要從軟件上配置就可以更改設(shè)備所屬網(wǎng)絡(luò)，不需要物理連線上的更改。

支持路由功能是管理型交換機的另一個特點。路由功能可以分析報文中的IP地址，并根據(jù)交換機內(nèi)部的路由表進行數(shù)據(jù)轉(zhuǎn)發(fā)，可以實現(xiàn)不同子網(wǎng)之間的數(shù)據(jù)交換。

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