virtual unit address 中文意思是什麼
virtual unit address
解釋
虛擬設備地址-
Code instructions address data using the virtual address ; the memory management unit ( mmu ) is responsible for the translation of the virtual address to the physical ram address
代碼指令使用了虛擬的地址；內存管理單元（ mmu ）負責把虛地址轉換成實際的物理ram地址。 -
Socket function mainly realizes setting up and initializing service unit socket, initializing service unit and service unit serial and so on. bind funcion primarily binds local address and port for the socket. listen function is to evaluate the max length of server ’ s listening queue. connect function and accept function set aside rate ahead, infrom user ’ s request of establishing virtual circuit to suna, cooperate with suna to establish the connection between client and server, return the result. we make use of three handshake with data protocol and virtual circuit mode, in this way, when we translate data, we can look up communication course according to virtual circuit number, at the same time, there aren ’ t source ip address and port, end ip address and port in the head of data package, the speed of translating data advances in a certain extent. send function and recv function is to send data collaborating with suna, and copy data from the receiving queue of socket to user ’ s buffer. close function cooperate
Socket （ ）函數實現創建、初始化服務元套接字，初始化服務元及服務元序列等。 bind （ ）函數為套接字綁定本地地址和埠號。 connect （ ）和accept （ ）函數主要是根據用戶要求預留帶寬，將用戶的建立虛電路請求轉達給服務元網路體系，協作服務元網路體系採用捎帶數據的三次握手協議建立虛電路，並告訴用戶處理結果，一方面，捎帶數據的三次握手協議在一定程度上可提高數據傳輸速度;另一方面，採用虛電路方式，使得數據通信可直接根據虛電路號查找相應的通信進程，而且數據包的包頭中省去了源ip地址、埠號和目的ip地址、埠號，提高了數據傳輸速率。 -
In a virtual storage system, a fixed - length block that has a virtual address and that is transferred as a unit between real storage and auxiliary storage
在虛擬存儲（器）系統中，具有一個虛擬地址並且可以在實存儲器和輔助存儲器之間作為一個單位來傳送的一種長度固定的（數據）塊。
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