Lecture 5
... Layers: each layer implements a service via its own internal-layer actions relying on services provided by layer below Introduction ...
... Layers: each layer implements a service via its own internal-layer actions relying on services provided by layer below Introduction ...
Network Analyst - Twin Rivers Unified School District
... support to network users and other technology staff. Participates in the design of enterprise network infrastructure and provides basic technical support that relates to networks, security and connectivity. ...
... support to network users and other technology staff. Participates in the design of enterprise network infrastructure and provides basic technical support that relates to networks, security and connectivity. ...
CSE331-35
... • These appear to be legitimate but actually reference a client unable to respond to the SYN-ACK. • The source addresses in the SYN packets are forged. – No way to determine its true source. ...
... • These appear to be legitimate but actually reference a client unable to respond to the SYN-ACK. • The source addresses in the SYN packets are forged. – No way to determine its true source. ...
IAP 01 – Introduction to Internet Architecture
... • Internet Service Providers (ISPs) – End systems access the Internet through the Internet Service Providers (ISPs). – The different ISPs provide a variety of different types of network access to the end systems, including 56Kbps dial up modem access, cable modem or DSL, high speed LAN access, and w ...
... • Internet Service Providers (ISPs) – End systems access the Internet through the Internet Service Providers (ISPs). – The different ISPs provide a variety of different types of network access to the end systems, including 56Kbps dial up modem access, cable modem or DSL, high speed LAN access, and w ...
ppt
... some hooks to upper layer protocols » Demultiplexing: identify which upper layer protocol packet belongs to » E.g., port numbers allow TCP/UDP to identify target application ...
... some hooks to upper layer protocols » Demultiplexing: identify which upper layer protocol packet belongs to » E.g., port numbers allow TCP/UDP to identify target application ...
Using Argus Audit Trails to Enhance IDS Analysis
... • A network flow is an identifiable exchange of data between two endpoints on a network. • Flows may be delineated by normal protocol (a SYN replied to by an RST) or by timeouts. • Flows may become exaggerated, as not all network traffic is readily broken into correct sessions with available informa ...
... • A network flow is an identifiable exchange of data between two endpoints on a network. • Flows may be delineated by normal protocol (a SYN replied to by an RST) or by timeouts. • Flows may become exaggerated, as not all network traffic is readily broken into correct sessions with available informa ...
$doc.title
... E.g.: Dynamic Access Control • Inspect first packet of a connecWon • Consult the access control policy • Install rules to block or route traffic ...
... E.g.: Dynamic Access Control • Inspect first packet of a connecWon • Consult the access control policy • Install rules to block or route traffic ...
Unit V
... Communication model - Data communications networking – Data transmission concepts And terminology - Protocol architecture - Protocols - OSI - TCP/IP LAN architecture Topologies - MAC - Ethernet, Fast Ethernet- Token ring FDDI- Wireless LANS. Unit II: Network layer - Switching concepts - Circuit swit ...
... Communication model - Data communications networking – Data transmission concepts And terminology - Protocol architecture - Protocols - OSI - TCP/IP LAN architecture Topologies - MAC - Ethernet, Fast Ethernet- Token ring FDDI- Wireless LANS. Unit II: Network layer - Switching concepts - Circuit swit ...
Communications Networks II: Design and Algorithms
... multiple autonomous systems (ASes) managed by different network providers peering at gateway routers dealing with network design within one admin. domain ...
... multiple autonomous systems (ASes) managed by different network providers peering at gateway routers dealing with network design within one admin. domain ...
Wireless communications media
... small number of computers share hardware, software and/or information • A small peer-to-peer network can be wired with Ethernet cable or it can be wireless ...
... small number of computers share hardware, software and/or information • A small peer-to-peer network can be wired with Ethernet cable or it can be wireless ...
File
... which the foods are produced, packaged, and shipped has 45 computer users. The company has Windows Server 2003 and Red Hat Enterprise Linux servers. The business and sales unit uses Windows XP Professional and Windows 7 Professional workstations. The plant users have a combination of Windows XP prof ...
... which the foods are produced, packaged, and shipped has 45 computer users. The company has Windows Server 2003 and Red Hat Enterprise Linux servers. The business and sales unit uses Windows XP Professional and Windows 7 Professional workstations. The plant users have a combination of Windows XP prof ...
Q-LAN Networking Overview
... guaranteed minimum bandwidth) are not recommended • Due to the sub-millisecond maximum-time-allowed on the network (333µs), Q-LAN is far more time-sensitive than typical Voice, Video or VC applications. »» Q-LAN PTP traffic must be assigned to the highest available priority queue • With some switc ...
... guaranteed minimum bandwidth) are not recommended • Due to the sub-millisecond maximum-time-allowed on the network (333µs), Q-LAN is far more time-sensitive than typical Voice, Video or VC applications. »» Q-LAN PTP traffic must be assigned to the highest available priority queue • With some switc ...
Solution
... 33. Suppose a computer is moved from one department to another. Does the physical address need to change? Does the IP address need to change? Does it make a difference if the computer is a laptop? [3 marks – 1 for each question] Solution: The physical address does not change (1). It is globally uniq ...
... 33. Suppose a computer is moved from one department to another. Does the physical address need to change? Does the IP address need to change? Does it make a difference if the computer is a laptop? [3 marks – 1 for each question] Solution: The physical address does not change (1). It is globally uniq ...
Protocols - Computing Sciences
... – DHCP server must be configured with a block of available IP addresses and their subnet masks – Clients must be configured to use DHCP • Broadcast request message is sent on boot – Client leases the address the server assigns to it – If no answer is received, in an APIPA-enabled OS, the computer as ...
... – DHCP server must be configured with a block of available IP addresses and their subnet masks – Clients must be configured to use DHCP • Broadcast request message is sent on boot – Client leases the address the server assigns to it – If no answer is received, in an APIPA-enabled OS, the computer as ...
Database System Implementation Proposal
... • Specifies details of how data is physically sent through the network, including how bits are electrically signaled by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber, or twisted-pair copper wire. Internet • Packages data into IP datagrams, which ...
... • Specifies details of how data is physically sent through the network, including how bits are electrically signaled by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber, or twisted-pair copper wire. Internet • Packages data into IP datagrams, which ...
Ch 2: TCP/IP Concepts Review
... By guessing ISN values, a hacker can hijack a TCP session, gaining access to a server without logging in ...
... By guessing ISN values, a hacker can hijack a TCP session, gaining access to a server without logging in ...
Company Network
... IP addresses with subnet mask (they are different) Hostname Passwords (cisco und class (secret)) Console (line console 0 ( login, Password: cisco) Virtual Terminal (line vty 0 15) Interfaces (Don’t forget: „no shutdown“ for the interfaces and clock rate 64000 for the serial interfaces) g. Static rou ...
... IP addresses with subnet mask (they are different) Hostname Passwords (cisco und class (secret)) Console (line console 0 ( login, Password: cisco) Virtual Terminal (line vty 0 15) Interfaces (Don’t forget: „no shutdown“ for the interfaces and clock rate 64000 for the serial interfaces) g. Static rou ...
ppt
... • Many graphs with similar distribution have different properties • Random graph generation models don’t have network-intrinsic meaning • Should look at fundamental trade-offs to understand topology • Technology constraints and economic trade-offs ...
... • Many graphs with similar distribution have different properties • Random graph generation models don’t have network-intrinsic meaning • Should look at fundamental trade-offs to understand topology • Technology constraints and economic trade-offs ...
ppt - CIS @ Temple University
... • change of implementation of layer’s service transparent to rest of system • e.g., change in gate procedure doesn’t affect rest of system ...
... • change of implementation of layer’s service transparent to rest of system • e.g., change in gate procedure doesn’t affect rest of system ...
Enterprise Servers
... devices. Therefore, they also share the same collision domain. To determine the bandwidth per host, simply divide the port’s bandwidth by the number of hosts (see graphic). In a pure switched LAN environment where each host has its own port, the size of the collision domain is 2. If running full-dup ...
... devices. Therefore, they also share the same collision domain. To determine the bandwidth per host, simply divide the port’s bandwidth by the number of hosts (see graphic). In a pure switched LAN environment where each host has its own port, the size of the collision domain is 2. If running full-dup ...
View
... many of the universities, Research labs, Libraries to access their super computers thus establishing the communication. The network grew very rapidly. It was turned over to private Internet Service Providers (ISP) in 1995. In early 90’es a new information service, www was developed at CERN by Ti ...
... many of the universities, Research labs, Libraries to access their super computers thus establishing the communication. The network grew very rapidly. It was turned over to private Internet Service Providers (ISP) in 1995. In early 90’es a new information service, www was developed at CERN by Ti ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.