... each other Message integrity: sender, receiver want to ensure message not altered (in transit, or afterwards) without detection Access and availability: services must be accessible and available ... Cipher-text only attack: Trudy has ciphertext that she can analyze ❒ Two approaches: ❍ ❍ Search through all keys: must be able to differentiate resulting plaintext from gibberish Statistical an...
Ngày tải lên: 28/03/2014, 20:20
... mạng nó, đăng ký COA nút di chuyển đến mạng xử lý điều • Một giao thức đóng gói home-agent datagram Đóng gói chuyển tiếp datagram ban đầu đ a gián tiếp datagram đ a gửi đến COA Page 51 ... nút di động Datagram lớn đáng đ a giao cho COA nút di động Các foreign agent, "sở hữu" COA, tiếp nhận datagram loại bỏ datagram ban đầu từ bên gói đóng gói lớn chuyển tiếp (bước Hình 6. 23) liệu ... muố...
Ngày tải lên: 20/11/2015, 17:54
computer Networking: A Top-Down Approach Featuring the Internet, 5th Edition
... = đ a IP B Đ a MAC nguồn = đ a MAC E Đ a MAC đích = đ a MAC interface R1 kết nối tới Subnet c) Switch S1 broadcast Ethernet frame thông qua interface as đ a đích ARP frame nhận đ a broadcast ... tính Page 27 Computer Networking: A Top-Down Approach Featuring the Internet, 5th Edition – Translate by K55CC P17: Giả sử gửi 2400 byte datagram vào link, link có MTU 700by...
Ngày tải lên: 28/02/2015, 19:04
Computer Networking: A Top Down Approach Featuring the Internet - Chapter 3 Transport Layer ppt
... application transport network data link physical available: r r delay guarantees bandwidth guarantees Transport Layer 3- 6 Chapter outline Ì 3. 1 Transport- layer services Ì 3. 2 Multiplexing and ... than one transport protocol available to apps r Internet: TCP and UDP application transport network data link physical application transport network data link physical Trans...
Ngày tải lên: 27/06/2014, 16:20
Computer Networking: A Top Down Approach Featuring the Internet - Chapter 7 Multimedia Networking docx
... conceal errors: repeat nearby data r 7: Multimedia Networking 7- Chapter outline Ì 7. 1 Multimedia Networking Applications Ì 7. 2 Streaming stored audio and video Ì 7. 3 Real-time Multimedia: Internet ... available bandwidth 7: Multimedia Networking 7- Chapter outline Ì 7. 1 Multimedia Networking Applications Ì 7. 2 Streaming stored audio and video Ì 7. 3 Re...
Ngày tải lên: 27/06/2014, 16:20
Computer Networking: A Top Down Approach Featuring the Internet - Chapter 9 Network Management potx
... whose data is gathered into a Management Information Base (MIB) agent data agent data managed device managed device Network 9-5 Network Management standards OSI CMIP Ì Common Management Information ... Ì de facto network management standard Network 9-6 Chapter outline Ì What is network management? Ì Internet- standard management framework r Structure of Manageme...
Ngày tải lên: 27/06/2014, 16:20
Computer Networking A Top-Down Approach Featuring the Internet phần 1 pptx
... Overheads: Computer Networking: A Top Down Approach Featuring the Internet Chapter 3: The Transport Layer q q chapter 3a. ppt (Part 1, powerpoint format, 1. 201M, last update: 28-Dec-99) chapter3b.ppt ... Daytona Beach and then ask someone else In Daytona Beach another gas station attendant also extracts the Orlando portion of the address and tells Joe that he should take...
Ngày tải lên: 14/08/2014, 13:21
Computer Networking A Top-Down Approach Featuring the Internet phần 2 ppsx
... 4 )20 /11 /20 04 15:51:48 ATMover (AAL), the ATM Layer, and the ATM Physical Layer: ATM Adaptation Layer (AAL) ATM Layer ATM Physical Layer Figure 1.10-1: The three ATM layers The ATM Physical Layer deals ... the ATM protocol stack consists of three layers: the ATM adaptation layer file:///D|/Downloads/Livros/computação /Computer% 20 Net %2 0Approach% 2 0Featuring% 2 0the%...
Ngày tải lên: 14/08/2014, 13:21