subnet work 中文意思是什麼
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Furthermore, this paper introduces three different network architectures which are single system, bastion firewall screening subnet and the net work with dmz ( demilitarized zone ) defending network, elaboratess theories of nat ( network address translation ) and dmz ( demilitarized zone ), with the practical examples based on dns ( domain name service )
文中針對單系統、堡壘防火墻屏蔽子網、帶dmz （非軍事化區）防禦帶三種不同網路拓撲結構加以說明，闡述nat （網路地址轉換）的原理和dmz工作原理以及它們的相應網路拓撲結構。同時給出基於dns服務的相關腳本。 -
The creativity of the work in the paper can be shown as the following four aspects : ( 1 ) for single subnet, the condition of simple link judgement is added into the ptda, so the algorithm is improved well ; ( 2 ) for multiple subnets, the ptda becomes more effective, benefited from use of breadth - first - search algorithm of graph, port - deletion method etc ; ( 3 ) due to suitable adoption of the three protocols stp, snmp and arp, the ptda based on spanning tree protocol can get very effective and correct ; ( 4 ) owing to the employment of ieee802. 1 q, the ptda of vlan is all - purpose to some extent
本文的創新之處主要體現在以下四個方面:在單子網物理拓撲發現演算法中，增加了判斷簡單連接的條件，使演算法更加完善;在多子網物理拓撲發現演算法中採用圖的廣度優先遍歷方法、埠刪除方法等，該演算法更加有效;在生成樹協議物理拓撲發現演算法中，正確使用stp 、 snmp和arp三種協議，物理拓撲發現非常準確;在vlan物理拓撲發現演算法中，正確運用了ieee802 . 1q協議，該演算法具有通用性。
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