Lecture #20: Link layer (error detection and correction)
... transportation mode = link layer protocol travel agent = routing algorithm DataLink Layer ...
... transportation mode = link layer protocol travel agent = routing algorithm DataLink Layer ...
Router
... Switches with blocking • It’s often practical to make a switch that is “blocking” – There is some small probability the switch can’t connect an input to an output – Recall it depends on what other connections have been made (i.e. how “busy” is the switch?) – Many switches aren’t very busy – Conside ...
... Switches with blocking • It’s often practical to make a switch that is “blocking” – There is some small probability the switch can’t connect an input to an output – Recall it depends on what other connections have been made (i.e. how “busy” is the switch?) – Many switches aren’t very busy – Conside ...
Distributed Denial of Service Attacks
... Trace source/destination packets by a means other than the IP address (blocks against IP address spoofing). DNSSEC would provide authorization and authentication on DNS information. ...
... Trace source/destination packets by a means other than the IP address (blocks against IP address spoofing). DNSSEC would provide authorization and authentication on DNS information. ...
calea - Internet2
... electronic communication under this chapter shall, upon request of the applicant, direct that a provider of wire or electronic communication service, landlord, custodian or other person shall furnish the applicant forthwith all information, facilities, and technical assistance necessary to accomplis ...
... electronic communication under this chapter shall, upon request of the applicant, direct that a provider of wire or electronic communication service, landlord, custodian or other person shall furnish the applicant forthwith all information, facilities, and technical assistance necessary to accomplis ...
Practice Questions with Solutions
... 8. A security manager is performing a quantitative risk assessment on a particular asset. The security manager wants to determine the quantitative loss for a single loss based on a particular threat. The correct way to calculate this is: a. Divide the asset’s value by the exposure factor b. Multiply ...
... 8. A security manager is performing a quantitative risk assessment on a particular asset. The security manager wants to determine the quantitative loss for a single loss based on a particular threat. The correct way to calculate this is: a. Divide the asset’s value by the exposure factor b. Multiply ...
MethodNRPTM
... Allows to add constraints that represent usage information. For instance constraint the very unlikely end-to-end traffic to be close to zero. Also known traffic from NetFlow or IP accounting readings can be included as constraints in the linear program. ...
... Allows to add constraints that represent usage information. For instance constraint the very unlikely end-to-end traffic to be close to zero. Also known traffic from NetFlow or IP accounting readings can be included as constraints in the linear program. ...
Internet QoS Protocols
... not all members need all sub-flows – if multiple sources are transmitting for same group, receiver may want to select source – In general, QoS needs of different receivers may differ due to equipment, link speed, processing speed/power or other differences ...
... not all members need all sub-flows – if multiple sources are transmitting for same group, receiver may want to select source – In general, QoS needs of different receivers may differ due to equipment, link speed, processing speed/power or other differences ...
TCP/IP Networking
... IP addresses were grouped into “classes” Class A,B and C denote regular IP addresses. Class D and E are used for multicasting and research purpose. Part of the host portion of an address is “borrowed” to extend the network portion. ...
... IP addresses were grouped into “classes” Class A,B and C denote regular IP addresses. Class D and E are used for multicasting and research purpose. Part of the host portion of an address is “borrowed” to extend the network portion. ...
How to setup WPA Security with the Conceptronic C54APT Access...
... Right click on the Network connection Go to Properties ...
... Right click on the Network connection Go to Properties ...
Basic Internetworking
... Each network’s MTU gives the size of the largest IP datagram that can be carried in a link-layer frame. Give the sizes and offsets of the sequence of fragments delivered to the network layer at the destination host. Assume all IP headers are 20 bytes. ...
... Each network’s MTU gives the size of the largest IP datagram that can be carried in a link-layer frame. Give the sizes and offsets of the sequence of fragments delivered to the network layer at the destination host. Assume all IP headers are 20 bytes. ...
There has been much talk about the holy grail of optical networking
... Many in the networking research community believe that optical burst switching (OBS) can meet the needs of the scientific community in the near term (2-3 years). OBS brings together the complementary strengths of optics and electronics [1][2][3][4][6][7][8][9]. The fundamental premise of OBS is the ...
... Many in the networking research community believe that optical burst switching (OBS) can meet the needs of the scientific community in the near term (2-3 years). OBS brings together the complementary strengths of optics and electronics [1][2][3][4][6][7][8][9]. The fundamental premise of OBS is the ...
Lecture 1
... Data communication is the transfer of data from one device to another via some form of transmission medium. A data communications system must transmit data to the correct destination in an accurate and timely manner. The five components that make up a data communications system are the message, send ...
... Data communication is the transfer of data from one device to another via some form of transmission medium. A data communications system must transmit data to the correct destination in an accurate and timely manner. The five components that make up a data communications system are the message, send ...
An Introduction to TCP/IP - Oakton Community College
... The Internet Protocol (IP) is responsible for ensuring that data is transferred between two addresses without being corrupted. For manageability, the data is usually split into multiple pieces or packets each with its own error detection bytes in the control section or header of the packet. The remo ...
... The Internet Protocol (IP) is responsible for ensuring that data is transferred between two addresses without being corrupted. For manageability, the data is usually split into multiple pieces or packets each with its own error detection bytes in the control section or header of the packet. The remo ...
Chapter 1. Introduction to Data Communications
... – Uses a variety of information types to decide how to route a packet (more sophisticated) • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinatio ...
... – Uses a variety of information types to decide how to route a packet (more sophisticated) • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinatio ...
computer_network_basics
... Access ISPs in turn must be interconnected. So that any two hosts can send packets to each other Resulting network of networks is very complex Evolution was driven by economics and national policies Let’s take a stepwise approach to describe current Internet structure ...
... Access ISPs in turn must be interconnected. So that any two hosts can send packets to each other Resulting network of networks is very complex Evolution was driven by economics and national policies Let’s take a stepwise approach to describe current Internet structure ...
Lecture No. 13
... It is one of the forms of Internet routing. In Static routing, the table is initialized when system boots and there is no further changes. DYNAMIC ROUTING: In dynamic routing the table is initialized when system boots. It includes routing software which learns routes and updates table. In this way c ...
... It is one of the forms of Internet routing. In Static routing, the table is initialized when system boots and there is no further changes. DYNAMIC ROUTING: In dynamic routing the table is initialized when system boots. It includes routing software which learns routes and updates table. In this way c ...
Chapter 1. Introduction to Data Communications
... – Uses a variety of information types to decide how to route a packet (more sophisticated) • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinatio ...
... – Uses a variety of information types to decide how to route a packet (more sophisticated) • e.g., number of hops, congestion, speed of circuit – Links state info exchanged periodically by each node to keep every node in the network up to date – Provides more reliable, up to date paths to destinatio ...
Performance Evaluation ofIEEE802.11g WLANsUsing OPNET
... The IEEE 802.11 standard defines a Basic Service Set (BSS) of two or more fixed, portable, and/or moving nodes or stations that can communicate with each other over the air in a geographically limited area [6]. Two configurations are specified in the standard: ad-hoc and infrastructure. The ad-hoc m ...
... The IEEE 802.11 standard defines a Basic Service Set (BSS) of two or more fixed, portable, and/or moving nodes or stations that can communicate with each other over the air in a geographically limited area [6]. Two configurations are specified in the standard: ad-hoc and infrastructure. The ad-hoc m ...
Network Discovery Protocol LLDP and LLDPMED
... attached to an IEEE 802 LAN to advertise, to other stations attached to the same IEEE 802 LAN, the major capabilities provided by the system incorporating that station, the management address or addresses of the entity or entities that provide management of those capabilities, and the identification ...
... attached to an IEEE 802 LAN to advertise, to other stations attached to the same IEEE 802 LAN, the major capabilities provided by the system incorporating that station, the management address or addresses of the entity or entities that provide management of those capabilities, and the identification ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... Current network architectures partially meet only today’s requirements of enterprises, carriers, and end users [9]. In today’s networking, many discrete sets of protocols are used to connect hosts reliably over arbitrary distances, link speeds, and topologies. Protocols are defined in isolation, to ...
... Current network architectures partially meet only today’s requirements of enterprises, carriers, and end users [9]. In today’s networking, many discrete sets of protocols are used to connect hosts reliably over arbitrary distances, link speeds, and topologies. Protocols are defined in isolation, to ...
Mobile Communications
... products have to follow many national restrictions if working wireless, it takes a vary long time to establish global solutions like, e.g., IMT-2000 ...
... products have to follow many national restrictions if working wireless, it takes a vary long time to establish global solutions like, e.g., IMT-2000 ...
Multilayer Networks: An Architecture Framework
... layer, and fiber-switch capable (FSC). Additionally, we associate these technology types with the more common terminology as follows: • Layer 3 for PSC using IP routing • Layer 2.5 for PSC using MPLS • Layer 2 for L2SC (often Ethernet) • Layer 1.5 for TDM (often SONET/SDH) • Layer 1 for LSC (often W ...
... layer, and fiber-switch capable (FSC). Additionally, we associate these technology types with the more common terminology as follows: • Layer 3 for PSC using IP routing • Layer 2.5 for PSC using MPLS • Layer 2 for L2SC (often Ethernet) • Layer 1.5 for TDM (often SONET/SDH) • Layer 1 for LSC (often W ...
Presented
... • Client looking for HTTP would be directed to the DC for authentication (until user authenticates all request to DNS are routed to the DC via a translation proxy) • Once user is authenticated the translation proxy would handle requests and grant capabilities to the end user ...
... • Client looking for HTTP would be directed to the DC for authentication (until user authenticates all request to DNS are routed to the DC via a translation proxy) • Once user is authenticated the translation proxy would handle requests and grant capabilities to the end user ...
elc200day4
... • A spider is a program that roams the Web from link to link, identifying and scanning pages • A spider is software unique to a search engine that allows users to query the index and returns results in relevancyranked order (alphabetical) • Search Engine Improvements: – First-generation search engin ...
... • A spider is a program that roams the Web from link to link, identifying and scanning pages • A spider is software unique to a search engine that allows users to query the index and returns results in relevancyranked order (alphabetical) • Search Engine Improvements: – First-generation search engin ...