Module 4 Part a - Pohang University of Science and Technology
... protocols and issues IP addressing, format & issues Intra-AS routing protocols ...
... protocols and issues IP addressing, format & issues Intra-AS routing protocols ...
Networking
... destinations by using a special code in the address field. When a packet with this code is transmitted, it is received and processed by every machine on the network. This mode of operation is called broadcasting. Some broadcast system also support transmission to a subset of a machines, something no ...
... destinations by using a special code in the address field. When a packet with this code is transmitted, it is received and processed by every machine on the network. This mode of operation is called broadcasting. Some broadcast system also support transmission to a subset of a machines, something no ...
Limitations of Layer2 switching
... Congestion Control in Virtual-Circuit Subnets Congestion Control in Datagram Subnets ...
... Congestion Control in Virtual-Circuit Subnets Congestion Control in Datagram Subnets ...
MPLS networking at PSP Co Multi
... • Allow core routers/networking devices to switch packets based on some simplified header • Ultra fast forwarding • VPN ...
... • Allow core routers/networking devices to switch packets based on some simplified header • Ultra fast forwarding • VPN ...
Storage Aware Protocols For heterogeneous networks
... • Send each batch using hop by hop reliability • Exchange end-to-end acknowledgements to maintain states at ...
... • Send each batch using hop by hop reliability • Exchange end-to-end acknowledgements to maintain states at ...
Document
... • Packet elimination (implicit congestion signaling) • Flow control: using backpressure to regulate the flow. • Buffer allocation: used with virtual circuit (connection-oriented) networks. Buffer size is considered a credit-based technique. • Choke packets ...
... • Packet elimination (implicit congestion signaling) • Flow control: using backpressure to regulate the flow. • Buffer allocation: used with virtual circuit (connection-oriented) networks. Buffer size is considered a credit-based technique. • Choke packets ...
pptx - UCL Computer Science
... Explicit routing with MPLS • Service provider’s LER picks the route, not the IP source • Suppose we want to load-balance R1 R7 and R2 R7 traffic • Could IP routing handle this? – Not here: IP routing only looks at destination, not source – Flows from R1 and R2 both have destination R7 • Solutio ...
... Explicit routing with MPLS • Service provider’s LER picks the route, not the IP source • Suppose we want to load-balance R1 R7 and R2 R7 traffic • Could IP routing handle this? – Not here: IP routing only looks at destination, not source – Flows from R1 and R2 both have destination R7 • Solutio ...
Switching vs Routing Overview
... Once physical links are added and clean of errors, resets, and other problems very little time is spent on physical/data link problems. Wide Area connections have more link problems but are reliable except for wireless communications. ...
... Once physical links are added and clean of errors, resets, and other problems very little time is spent on physical/data link problems. Wide Area connections have more link problems but are reliable except for wireless communications. ...
sg300_vlan_setup - Cisco Support Community
... In other words it sends packets to the switches at IP address 10.0.3.101, and lets the switch decide how and where to forward the packet destined for host1. Host1 has a default gateway, but that is the IP address of the router, 192.168.1.1. So, when Host1 tries to communicate anywhere outside it's k ...
... In other words it sends packets to the switches at IP address 10.0.3.101, and lets the switch decide how and where to forward the packet destined for host1. Host1 has a default gateway, but that is the IP address of the router, 192.168.1.1. So, when Host1 tries to communicate anywhere outside it's k ...
A. Introduction
... compensate for errors, but modern systems are more reliable and errors can be caught by end systems ...
... compensate for errors, but modern systems are more reliable and errors can be caught by end systems ...
Switching and Routing
... • Deadlock free routing example: – Up/down routing • Select a root node and build a spanning tree • Links are classified as up links or down links – Up links: from lower level to upper level – Down links: from upper level to lower level – Link between nodes in the same level: up/down based on node n ...
... • Deadlock free routing example: – Up/down routing • Select a root node and build a spanning tree • Links are classified as up links or down links – Up links: from lower level to upper level – Down links: from upper level to lower level – Link between nodes in the same level: up/down based on node n ...
07/08 Semester B - City University of Hong Kong
... outgoing trunks, estimate the grade of service. State any assumptions you make. [5 marks] (c) Redesign the above network by increasing the number of the secondary switches to provide a grade of service better than 1 in 500. How many crosspoints does this network require? Draw the resulting design. [ ...
... outgoing trunks, estimate the grade of service. State any assumptions you make. [5 marks] (c) Redesign the above network by increasing the number of the secondary switches to provide a grade of service better than 1 in 500. How many crosspoints does this network require? Draw the resulting design. [ ...
4th Edition: Chapter 1
... Network Core: Packet Switching each end-end data stream divided into packets user A, B packets share network resources each packet uses full link bandwidth resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
... Network Core: Packet Switching each end-end data stream divided into packets user A, B packets share network resources each packet uses full link bandwidth resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
18 DPI
... threats to system increase depends on the time, effective performance of system goes down because of unregistrated attempts to connect. Testing results shows that software performance remains around 50% - 60% after a half hour. Testing results show, Linux DPI filter application works better then W ...
... threats to system increase depends on the time, effective performance of system goes down because of unregistrated attempts to connect. Testing results shows that software performance remains around 50% - 60% after a half hour. Testing results show, Linux DPI filter application works better then W ...
PDF
... each other with no access point and without any fixed infrastructure. But mobile devices usually have limited resources (battery power, memory, CPU) which limit their transmission range. Hence, in order to conserve the limited resource, it is highly desirable that transmission should be as efficient ...
... each other with no access point and without any fixed infrastructure. But mobile devices usually have limited resources (battery power, memory, CPU) which limit their transmission range. Hence, in order to conserve the limited resource, it is highly desirable that transmission should be as efficient ...
Packet Filtering
... • Packets: discrete blocks of data; basic unit of data handled by a network • Packet filter: hardware or software designed to block or allow transmission of packets based on criteria such as port, IP address, protocol • To control movement of traffic through the network perimeter, know how packets a ...
... • Packets: discrete blocks of data; basic unit of data handled by a network • Packet filter: hardware or software designed to block or allow transmission of packets based on criteria such as port, IP address, protocol • To control movement of traffic through the network perimeter, know how packets a ...
chapterw3
... for example, 24 frames per second, frame 48 must be display after two seconds IP protocol provides no guaranteesIPv6 (new) includes features for real-time streams, stream data are treated separately Resource Reservation Protocol (RSVP), Real-time Transport Protocol (RTP) Instructor’s Guide for Co ...
... for example, 24 frames per second, frame 48 must be display after two seconds IP protocol provides no guaranteesIPv6 (new) includes features for real-time streams, stream data are treated separately Resource Reservation Protocol (RSVP), Real-time Transport Protocol (RTP) Instructor’s Guide for Co ...
lesson19
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
Lecture #15: Network layer
... call setup, teardown for each call before data can flow each packet carries VC identifier not destination host address every router on source-dest path maintains “state” for ...
... call setup, teardown for each call before data can flow each packet carries VC identifier not destination host address every router on source-dest path maintains “state” for ...
10. ISDN Architecture and Services
... Circuit switching has been the first approach to routing communication channels between users. The originating user request the connection establishment with the user signaling. If the channel is available, it will be established between the communicating parties for the complete duration of the con ...
... Circuit switching has been the first approach to routing communication channels between users. The originating user request the connection establishment with the user signaling. If the channel is available, it will be established between the communicating parties for the complete duration of the con ...
CMPT 880: Internet Architectures and Protocols
... no call setup at network layer routers: no state about end-to-end connections no network-level concept of “connection” packets forwarded using destination host address packets between same source-dest pair may take different ...
... no call setup at network layer routers: no state about end-to-end connections no network-level concept of “connection” packets forwarded using destination host address packets between same source-dest pair may take different ...
$doc.title
... A) MAC B) IP C) Both D) Neither • Forwarding via exact match on address A) MAC B) IP C) Both D) Neither • AutomaHcally calculate forwarding by observing data ...
... A) MAC B) IP C) Both D) Neither • Forwarding via exact match on address A) MAC B) IP C) Both D) Neither • AutomaHcally calculate forwarding by observing data ...
Packet switching
Packet switching is a digital networking communications method that groups all transmitted data into suitably sized blocks, called packets, which are transmitted via a medium that may be shared by multiple simultaneous communication sessions. Packet switching increases network efficiency, robustness and enables technological convergence of many applications operating on the same network.Packets are composed of a header and payload. Information in the header is used by networking hardware to direct the packet to its destination where the payload is extracted and used by application software.Starting in the late 1950s, American computer scientist Paul Baran developed the concept Distributed Adaptive Message Block Switching with the goal to provide a fault-tolerant, efficient routing method for telecommunication messages as part of a research program at the RAND Corporation, funded by the US Department of Defense. This concept contrasted and contradicted the heretofore established principles of pre-allocation of network bandwidth, largely fortified by the development of telecommunications in the Bell System. The new concept found little resonance among network implementers until the independent work of Donald Davies at the National Physical Laboratory (United Kingdom) (NPL) in the late 1960s. Davies is credited with coining the modern name packet switching and inspiring numerous packet switching networks in Europe in the decade following, including the incorporation of the concept in the early ARPANET in the United States.