托管與非托管交換機(jī)的區(qū)別（中英文）
當(dāng)在同一位置連接多個(gè)以太網(wǎng)設(shè)備時(shí)，以太網(wǎng)交換機(jī)是最佳選擇。它可能看起來很簡單，就像插入插座板一樣，但用戶必須考慮一些重要的因素才能確保網(wǎng)絡(luò)狀態(tài)穩(wěn)定。除了價(jià)格之外，托管和非托管交換機(jī)之間還有什么區(qū)別？
When connecting more than one Ethernet device in the same location, an Ethernet Switch is the way to go. It may seem simple, like plugging into an outlet strip, but there are significant considerations one must take to ensure your network is rock solid. What is the difference between managed and unmanaged switches besides price?
■托管型和非托管型交換機(jī)的區(qū)別
/The Difference Between Managed and Unmanaged Switches
首先是非托管以太網(wǎng)交換機(jī)，簡單，易于使用，連接以太網(wǎng)設(shè)備就可以進(jìn)行通信。這確實(shí)是以太網(wǎng)非管理型交換機(jī)的工作方式。它應(yīng)該可以正常工作……但如果沒有呢？非管理型交換機(jī)不提供任何類型的監(jiān)控、警報(bào)或警報(bào)。它們只是接收數(shù)據(jù)并將其發(fā)回。使用非管理型交換機(jī)很像駕駛沒有儀表板的汽車，可能會(huì)到達(dá)目的地，但還剩多少汽油，發(fā)動(dòng)機(jī)是否過熱，要走多快......？在有幾個(gè)以太網(wǎng)設(shè)備和一到三個(gè)交換機(jī)的簡單應(yīng)用中，非管理型交換機(jī)通常是最佳選擇，也是最經(jīng)濟(jì)的。一般是，如果擁有 3 個(gè)以上的以太網(wǎng)交換機(jī)，則應(yīng)考慮管理型交換機(jī)。
Let's first consider Unmanaged Ethernet Switches, simple, easy to use, connect your ethernet devices and magically everything communicates. This is indeed how an Ethernet Unmanaged Switch is supposed to operate. It should just work... but what if it doesn't? Unmanaged switches do not provide any sort of monitoring, alerts or alarms. They just take data in and send it back out. Using an unmanaged switch is much like driving a car without a dashboard. You will probably get to your destination, but how much gas do you have left, is your engine overheating, how fast are you going...? In simple applications where there are a few ethernet devices and one to three switches TOTAL, unmanaged switches are often the best choice and will be the most economical. A general rule is if you have more than 3 Ethernet switches, you should consider Managed switches.
托管型交換機(jī)在網(wǎng)絡(luò)中提供了很多價(jià)值。首先，可以了解網(wǎng)絡(luò)狀態(tài)。如果存在不正確的情況，托管型交換機(jī)會(huì)發(fā)送消息告知。這包括諸如帶寬消耗高、有人剛剛插入端口甚至電源故障之類的事情。此外，托管型交換機(jī)可以實(shí)現(xiàn)冗余，如果以太網(wǎng)電纜被切斷、拔下或插入錯(cuò)誤的端口，或者即使交換機(jī)本身斷電，這也可能是至關(guān)重要的。托管交換機(jī)足夠智能，可以找到到達(dá)目的地的另一條路徑，甚至可以阻止不應(yīng)在特定端口上發(fā)生的通信，從而防止出現(xiàn)嚴(yán)重的網(wǎng)絡(luò)問題。
Managed switches provide a lot of value in a network. First, they can let you know the status of the network. If there is a condition that isn't right, a managed switch can send you a message telling you so. This includes things like bandwidth consumption is high, someone just plugged into a port and even power supply failure. Additionally, a Managed switch can implement redundancy. This can be critical if an Ethernet cable gets cut, unplugged, or plugged into the wrong port or even if the switch itself powers down. Managed switches are intelligent enough to find another path to the destination, or even block communications that should not be occurring on a specific port preventing serious network issues.
■實(shí)際應(yīng)用 / Real-World Applications
一些托管型交換機(jī)具有具有實(shí)際價(jià)值的額外功能。一個(gè)例子是PoE（以太網(wǎng)供電）監(jiān)控。如果正在使用 PoE 相機(jī)或其他 PoE 設(shè)備，托管型交換機(jī)可以監(jiān)控它們以確保它們正常工作，如果沒有，托管型交換機(jī)可以自動(dòng)重置該端口的電源并重新啟動(dòng)設(shè)備，從而節(jié)省服務(wù)呼叫。
Some Managed switches have extra features that have real-world value. One example is PoE (Power over Ethernet) monitoring. If you are using PoE Cameras or other PoE devices, a Managed switch can monitor them to ensure they're functioning, and if not, a managed switch can automatically reset the power on that port and reboot the device, thus saving a service call.
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