SEMESTER 1 MODULE 1
... * What information is added during the encapsulation of the OSI network layer? – When referring to the Network layer, we call this PDU a packet. – The address of the host to which it is being sent. This address is referred to as the destination address. – The address of the originating host is call ...
... * What information is added during the encapsulation of the OSI network layer? – When referring to the Network layer, we call this PDU a packet. – The address of the host to which it is being sent. This address is referred to as the destination address. – The address of the originating host is call ...
Chapter 1 Data Communications and Networks Overview
... —Receiving TCP performs the same calculation and compare the result with the incoming code to detect errors. ...
... —Receiving TCP performs the same calculation and compare the result with the incoming code to detect errors. ...
Control of Wide Area Networks
... In order to get a further understanding of WANs, it is useful to explore the differences between WANs and LANs. LANs are defined as communications networks in which all components are located within several miles of each other and communicate using high transmission speeds, generally 1M-bps or highe ...
... In order to get a further understanding of WANs, it is useful to explore the differences between WANs and LANs. LANs are defined as communications networks in which all components are located within several miles of each other and communicate using high transmission speeds, generally 1M-bps or highe ...
Slides - GMU Computer Science
... • Attack would be stopped by proxy firewall • Incoming packet destroyed (old TTL value also destroyed) • New outgoing packet will not exceed TTL. ...
... • Attack would be stopped by proxy firewall • Incoming packet destroyed (old TTL value also destroyed) • New outgoing packet will not exceed TTL. ...
The Changing Structure of the Internet
... origination to termination imbalance using a common call accounting rate 1000 call minutes @ $3.00 per minute ...
... origination to termination imbalance using a common call accounting rate 1000 call minutes @ $3.00 per minute ...
Towards Wireless Overlay Network Architectures
... • IP Telephony, Packet VoD, Teleconferencing – Streaming media, multicast-based – Bandwidth, latency, jitter, lose rate constraints – Clearinghouse provisioning ...
... • IP Telephony, Packet VoD, Teleconferencing – Streaming media, multicast-based – Bandwidth, latency, jitter, lose rate constraints – Clearinghouse provisioning ...
Presentation3
... Technology push: - Link bandwidth scaling much faster than CPU and memory technology - Transistor scaling and VLSI technology help but not enough ...
... Technology push: - Link bandwidth scaling much faster than CPU and memory technology - Transistor scaling and VLSI technology help but not enough ...
module_70
... in the network layer and transport layer headers: source and destination port addresses, and type of protocol (TCP or UDP). Incoming packets from network 131.34.0.0 are blocked. ‘*’ means any. Incoming packets destined for any internal TELNET server (port 23) are blocked. ...
... in the network layer and transport layer headers: source and destination port addresses, and type of protocol (TCP or UDP). Incoming packets from network 131.34.0.0 are blocked. ‘*’ means any. Incoming packets destined for any internal TELNET server (port 23) are blocked. ...
com223-chapter 5
... Not routable Not truly designed for peer-to-peer communications between workstations, but only for connectivity to older IBM mainframe ...
... Not routable Not truly designed for peer-to-peer communications between workstations, but only for connectivity to older IBM mainframe ...
70-680_Lesson02 - Elgin Community College
... • The header in the Transport layer use ports to identify specific applications running on the system • the combination of an IP address and a port number is called a socket • the standard port number for the Hypertext Transfer Protocol (HTTP), the application layer protocol used for web communicati ...
... • The header in the Transport layer use ports to identify specific applications running on the system • the combination of an IP address and a port number is called a socket • the standard port number for the Hypertext Transfer Protocol (HTTP), the application layer protocol used for web communicati ...
Certification Exercise 2
... 8. Which network device provides public to private network security and may use Network Address Translation (NAT)? a) Hub b) Bridge c) Switch d) Firewall 9. Which device connects multiple computers to create a single logical network segment? a) Hub b) NIC c) Router d) Bridge 10. Devices on a Token ...
... 8. Which network device provides public to private network security and may use Network Address Translation (NAT)? a) Hub b) Bridge c) Switch d) Firewall 9. Which device connects multiple computers to create a single logical network segment? a) Hub b) NIC c) Router d) Bridge 10. Devices on a Token ...
CIS6930: Advanced Topics in Networking
... received. Stop only when the next hop buffer is not available. – Time = H S + P/B, when S << P/B, the time does not depend on the number of hops!!! ...
... received. Stop only when the next hop buffer is not available. – Time = H S + P/B, when S << P/B, the time does not depend on the number of hops!!! ...
Introduction
... Connection is established between the sender and the recipient before any data is transferred. All packets travel sequentially across the same physical or virtual circuit. Referred to as circuit-switched processes. Example: telephone system. The Internet is a connectionless network in which ...
... Connection is established between the sender and the recipient before any data is transferred. All packets travel sequentially across the same physical or virtual circuit. Referred to as circuit-switched processes. Example: telephone system. The Internet is a connectionless network in which ...
02-evolution2
... the ToS octet of the IPv4 packet or Traffic Class octet of IPv6 as DS Allows operators to control treatment of packets but does not guarantee any particular level of service or policy adherence across network boundaries. The first 6 bits of the DS field are used as Differentiated Services Code Point ...
... the ToS octet of the IPv4 packet or Traffic Class octet of IPv6 as DS Allows operators to control treatment of packets but does not guarantee any particular level of service or policy adherence across network boundaries. The first 6 bits of the DS field are used as Differentiated Services Code Point ...
The Internet and the Web
... an IP address is a number, written as a dotted sequence such as 147.134.2.84 each computer is assigned an IP address by its Internet Service Provider (ISP) some ISPs (e.g., AOL, most colleges) maintain a pool of IP addresses and assign them dynamically to computers each time they connect ...
... an IP address is a number, written as a dotted sequence such as 147.134.2.84 each computer is assigned an IP address by its Internet Service Provider (ISP) some ISPs (e.g., AOL, most colleges) maintain a pool of IP addresses and assign them dynamically to computers each time they connect ...
CMPT 880: Internet Architectures and Protocols
... Web, email, games, e-commerce, file sharing, … ...
... Web, email, games, e-commerce, file sharing, … ...
Teldat H1 Rail - BidNet Management
... Dynamic routing protocols allow the implementation of scalable corporate VPN networks Multiple service support, based on advanced QoS: hierarchical traffic analysis, labeling and prioritization, guarantees bandwidth to critical applications when sharing limited resources IP forwarding policy based o ...
... Dynamic routing protocols allow the implementation of scalable corporate VPN networks Multiple service support, based on advanced QoS: hierarchical traffic analysis, labeling and prioritization, guarantees bandwidth to critical applications when sharing limited resources IP forwarding policy based o ...
Recitation1-Subnets
... constant number of possible physical subnetworks with maximum number of hosts on them. Difficult to keep small (waist of subnet numbers) and big (the host id needs more bits) sub networks and there could be unnecessary spending of address space. Solution: Variable-Length Subnetting. A subnet partiti ...
... constant number of possible physical subnetworks with maximum number of hosts on them. Difficult to keep small (waist of subnet numbers) and big (the host id needs more bits) sub networks and there could be unnecessary spending of address space. Solution: Variable-Length Subnetting. A subnet partiti ...
Detecting service violation in Internet and Mobile ad hoc networks
... • Update Blacklist by INVALID Packet • Next hop on the invalid route will be put into local blacklist, a timer starts, a counter ++ • Labeling process will be done in the reverse direction of route • When timer expires, the suspicious host will be released from the blacklist and routing information ...
... • Update Blacklist by INVALID Packet • Next hop on the invalid route will be put into local blacklist, a timer starts, a counter ++ • Labeling process will be done in the reverse direction of route • When timer expires, the suspicious host will be released from the blacklist and routing information ...
Recitation1
... constant number of possible physical subnetworks with maximum number of hosts on them. Difficult to keep small (waist of subnet numbers) and big (the host id needs more bits) sub networks and there could be unnecessary spending of address space. Solution: Variable-Length Subnetting. A subnet partiti ...
... constant number of possible physical subnetworks with maximum number of hosts on them. Difficult to keep small (waist of subnet numbers) and big (the host id needs more bits) sub networks and there could be unnecessary spending of address space. Solution: Variable-Length Subnetting. A subnet partiti ...
ppt - Carnegie Mellon School of Computer Science
... » Tunneling adds (of course) processing overhead » Tunneling increases the packet length, which may cause fragmentation – BIG hit in performance in most systems – Tunneling in effect reduces the MTU of the path, but end-points often do not know this ...
... » Tunneling adds (of course) processing overhead » Tunneling increases the packet length, which may cause fragmentation – BIG hit in performance in most systems – Tunneling in effect reduces the MTU of the path, but end-points often do not know this ...
PPT - Pages
... • Dealing with packet loss and corruption: error control. • Actually these issues are relevant at many layers. – Link layer: sender and receiver attached to the same “wire” – End-to-end: transmission control protocol (TCP) - sender and receiver are the end points of a connection ...
... • Dealing with packet loss and corruption: error control. • Actually these issues are relevant at many layers. – Link layer: sender and receiver attached to the same “wire” – End-to-end: transmission control protocol (TCP) - sender and receiver are the end points of a connection ...