Introduction to computer networkd #9
... • As protocols serve their functions in the OSI model, they might work at one or many layers • When a set of protocols works cooperatively, it’s called a protocol stack or protocol suite – The most common protocol stack is TCP/IP, the Internet protocol suite – IPX/SPX, used in older versions of Nove ...
... • As protocols serve their functions in the OSI model, they might work at one or many layers • When a set of protocols works cooperatively, it’s called a protocol stack or protocol suite – The most common protocol stack is TCP/IP, the Internet protocol suite – IPX/SPX, used in older versions of Nove ...
Fitting Voice Into Your Network
... All use active testing to compare a reference signal at the destination to assess call quality Best suited for assessments and service assurance PESQ does not indicate the nature of the problem (only that there is a problem), does not help tune or troubleshoot PESQ needs exact input signal t ...
... All use active testing to compare a reference signal at the destination to assess call quality Best suited for assessments and service assurance PESQ does not indicate the nature of the problem (only that there is a problem), does not help tune or troubleshoot PESQ needs exact input signal t ...
Data Link Layer Switching
... Internet Control Message Protocol Internet Group Management Protocol Gateway to Gateway Protocol IP in IP tunneling ST-II in IP tunneling ...
... Internet Control Message Protocol Internet Group Management Protocol Gateway to Gateway Protocol IP in IP tunneling ST-II in IP tunneling ...
Presentation3
... Internet structure: network of networks roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, Cable and Wireless), national/international coverage treat each other as equals Tier-1 providers interconnect (peer) privately ...
... Internet structure: network of networks roughly hierarchical at center: “tier-1” ISPs (e.g., Verizon, Sprint, AT&T, Cable and Wireless), national/international coverage treat each other as equals Tier-1 providers interconnect (peer) privately ...
MPLS, SD-WAN, Internet, and Cloud Network
... connection and routes traffic between these locations over their private backbone. In theory, since the traffic does not traverse the internet, encryption is optional. Because the connection is managed by the telco, end to end, it can commit to availability and latency SLAs. This commitment is expen ...
... connection and routes traffic between these locations over their private backbone. In theory, since the traffic does not traverse the internet, encryption is optional. Because the connection is managed by the telco, end to end, it can commit to availability and latency SLAs. This commitment is expen ...
Supporting H.323 Video and Voice in an Enterprise Network
... long as the bandwidth is really available on the network. While it is a subjective judgement, we did not find the image quality useful for 14.4 Modem or 28.8 Modem settings. These setting are effective for audio only, and for application sharing without video. When the H.323 configuration is set for ...
... long as the bandwidth is really available on the network. While it is a subjective judgement, we did not find the image quality useful for 14.4 Modem or 28.8 Modem settings. These setting are effective for audio only, and for application sharing without video. When the H.323 configuration is set for ...
Router
... Protocol layering example TCP’s job is to work with server to make sure bytes arrive reliably and in order. TCP adds its header and calls IP. (Before that, TCP establishes a connection with its peer.) ...
... Protocol layering example TCP’s job is to work with server to make sure bytes arrive reliably and in order. TCP adds its header and calls IP. (Before that, TCP establishes a connection with its peer.) ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... video conferencing are possible. Continuous demand to perform personal as well as business activities while on the go fundamentally fuels the popularity of today's mobile co mmun ication. Data traffic in mobile communicat ion has grown tremendously in recent years. This is achieved due to the develo ...
... video conferencing are possible. Continuous demand to perform personal as well as business activities while on the go fundamentally fuels the popularity of today's mobile co mmun ication. Data traffic in mobile communicat ion has grown tremendously in recent years. This is achieved due to the develo ...
Network Layer
... Advertise smaller CIDR blocks Decreases the routing table size Advertise 199.242.64.0/22 instead of 199.242.64.0,199.242.65.0, 199.242.66.0 and 199.242.67.0 The CIDR Report: http://www.employees.org/~tbates/cidr-report.html ...
... Advertise smaller CIDR blocks Decreases the routing table size Advertise 199.242.64.0/22 instead of 199.242.64.0,199.242.65.0, 199.242.66.0 and 199.242.67.0 The CIDR Report: http://www.employees.org/~tbates/cidr-report.html ...
GLOBAL International Educational Organization Computer Networks
... d. to identify the source and destination end devices that are communicating e. to identify the processes or services that are communicating within the end devices 13. What can be identified by examining the network layer header? a. the destination device on the local media b. the destination host ...
... d. to identify the source and destination end devices that are communicating e. to identify the processes or services that are communicating within the end devices 13. What can be identified by examining the network layer header? a. the destination device on the local media b. the destination host ...
chapter two lecture slides
... The World Wide Web is arguably the best known and most widely used Internet service According to the Internet User’s Guide, the Web can be defined as “a hypertext-based, distributed information system created by researchers at CERN in Switzerland” Tim Berners-Lee is credited with developing the conc ...
... The World Wide Web is arguably the best known and most widely used Internet service According to the Internet User’s Guide, the Web can be defined as “a hypertext-based, distributed information system created by researchers at CERN in Switzerland” Tim Berners-Lee is credited with developing the conc ...
Web Application Security Vulnerabilities Yen
... web applications allow administrators to access the site using a web interface. If these administrative functions are not very carefully protected, an attacker can gain full access to all aspects of a site. ...
... web applications allow administrators to access the site using a web interface. If these administrative functions are not very carefully protected, an attacker can gain full access to all aspects of a site. ...
network number
... e.g., BARRNET, a provider network that served sites in the San Francisco Bay area built from a large number of point-to-point links (e.g., DS-3 or OC-3 links) that connect to routers ...
... e.g., BARRNET, a provider network that served sites in the San Francisco Bay area built from a large number of point-to-point links (e.g., DS-3 or OC-3 links) that connect to routers ...
Document
... Development of new TCP stacks and non-TCP protocols is required Multi-Gigabit transfers are possible and stable on current networks Complementary provision of packet IP & λ-Networks is needed The performance of the end host / disks is really important Application design can determine Perceived Netwo ...
... Development of new TCP stacks and non-TCP protocols is required Multi-Gigabit transfers are possible and stable on current networks Complementary provision of packet IP & λ-Networks is needed The performance of the end host / disks is really important Application design can determine Perceived Netwo ...
Security
... For stand-alone services another tool has to be used to control access In modern systems is common place to get protection by IP filtering In IP filtering kernel inspects each network packet transmitted or received by the host machine ...
... For stand-alone services another tool has to be used to control access In modern systems is common place to get protection by IP filtering In IP filtering kernel inspects each network packet transmitted or received by the host machine ...
Data Link Layer
... • In any broadcast network, the stations must ensure that only one station transmits at a time on the shared communication channel • The protocol that determines who can transmit on a broadcast channel is called the Medium Access Control (MAC) protocol • The MAC protocol is implemented in the MAC su ...
... • In any broadcast network, the stations must ensure that only one station transmits at a time on the shared communication channel • The protocol that determines who can transmit on a broadcast channel is called the Medium Access Control (MAC) protocol • The MAC protocol is implemented in the MAC su ...
Slides - George Mason University
... Local Campus Networks such as George Mason University’s internal network Small Business with remote locations ...
... Local Campus Networks such as George Mason University’s internal network Small Business with remote locations ...
BGP - Pages
... – networks 128.96, 192.4.153, 192.4.32, and 192.4.3 can be reached along the path (AS1, AS2). ...
... – networks 128.96, 192.4.153, 192.4.32, and 192.4.3 can be reached along the path (AS1, AS2). ...
PowerPoint **
... • We test the algorithm under different traffic conditions: • we assume that the average number of packets, npkt, generated by each node within a single slotframe can vary in the range [3, 5] . ...
... • We test the algorithm under different traffic conditions: • we assume that the average number of packets, npkt, generated by each node within a single slotframe can vary in the range [3, 5] . ...
3.Transport Layer
... Socket data structures keep the mapping information Need to "bind" a socket (port) to a process Ports range from 0 to 65535 Ports 0-1023 are reserved for well-known services Require root (in UNIX) access to listen on those ports UDP and TCP ports Usually the same port number is assigned to a ...
... Socket data structures keep the mapping information Need to "bind" a socket (port) to a process Ports range from 0 to 65535 Ports 0-1023 are reserved for well-known services Require root (in UNIX) access to listen on those ports UDP and TCP ports Usually the same port number is assigned to a ...
INWK6113 - IT, Sligo
... – refers to the functions needed to set up, maintain, and cleara circuit-switched connection on a B channel. This function corresponds to call control in existing circuit-switching telecommunications networks. ...
... – refers to the functions needed to set up, maintain, and cleara circuit-switched connection on a B channel. This function corresponds to call control in existing circuit-switching telecommunications networks. ...
Niagra Falls Bridge Commission Success Story
... across these three critical links between the U.S. and Canada each year, and about $32 billion in trade goes back and forth across the border. Although the NFBC does not handle customs and immigration between the two countries, the organization is charged with keeping the Niagara Falls bridges safe ...
... across these three critical links between the U.S. and Canada each year, and about $32 billion in trade goes back and forth across the border. Although the NFBC does not handle customs and immigration between the two countries, the organization is charged with keeping the Niagara Falls bridges safe ...
Scheduing Algorithms for Wireless Ad
... Goal: spend minimal TS to send data packet. We consider a line network. A BS is placed at one end of the network. Let’s denote node N i by its distance to the BS in number of hops, that is i. We denote i i+1 a transmission from node i to node i+1. For purpose of solving this problem we look initia ...
... Goal: spend minimal TS to send data packet. We consider a line network. A BS is placed at one end of the network. Let’s denote node N i by its distance to the BS in number of hops, that is i. We denote i i+1 a transmission from node i to node i+1. For purpose of solving this problem we look initia ...
Router Anatomy - Institute for Systems Research
... We need multiple table look-ups for each packet. Access to whole packet not just the IP header is necessary. There can be ten of thousands of simultaneously active subscribers comprising millions of application flows. In a fully loaded Gigabit Ethernet connection about 1.5 million packets pe ...
... We need multiple table look-ups for each packet. Access to whole packet not just the IP header is necessary. There can be ten of thousands of simultaneously active subscribers comprising millions of application flows. In a fully loaded Gigabit Ethernet connection about 1.5 million packets pe ...