ppt - EECS Instructional Support Group Home Page
... • Idea: when storing state in a distributed system, keep it co-located with the entities that ultimately rely on the state • Fate-sharing is a technique for dealing with failure – Only way that failure can cause loss of the critical state is if the entity that cares about it also fails ... – … in wh ...
... • Idea: when storing state in a distributed system, keep it co-located with the entities that ultimately rely on the state • Fate-sharing is a technique for dealing with failure – Only way that failure can cause loss of the critical state is if the entity that cares about it also fails ... – … in wh ...
Course Summary
... bandwidth is changing, depending on other connections in network) ACKs being received, so increase rate ...
... bandwidth is changing, depending on other connections in network) ACKs being received, so increase rate ...
Fastpass
... • A core arbiter would have to handle a large volume of traffic, so allocating at MTU-size granularity would not be computationally feasible. Solution：the use of specialized hardware ...
... • A core arbiter would have to handle a large volume of traffic, so allocating at MTU-size granularity would not be computationally feasible. Solution：the use of specialized hardware ...
Prezentacja programu PowerPoint
... • Reordering is there and will stay there (race for faster interfaces...) • You will not be informed about it unless you ask • Old applications are most probably vulnerable to reordering • New applications should use reordering-resistant protocols • Even slow (in macroscopic scale) applications can ...
... • Reordering is there and will stay there (race for faster interfaces...) • You will not be informed about it unless you ask • Old applications are most probably vulnerable to reordering • New applications should use reordering-resistant protocols • Even slow (in macroscopic scale) applications can ...
SDN and Mininet - CSE Labs User Home Pages
... Why a logically centralized control plane? • easier network management: avoid router misconfigurations, greater flexibility of traffic flows • table-based forwarding (OpenFlow API) allows “programming” routers – centralized “programming” easier: compute tables centrally and distribute – distributed ...
... Why a logically centralized control plane? • easier network management: avoid router misconfigurations, greater flexibility of traffic flows • table-based forwarding (OpenFlow API) allows “programming” routers – centralized “programming” easier: compute tables centrally and distribute – distributed ...
pdf
... In steady state, there should be no routing loops But steady state is rare. If routing tables are not in sync, routing loops can occur. To avoid problems, IP packets maintain a maximum hop count (TTL) that is decreased on every hop until 0 is reached, at which point a packet is dropped. ...
... In steady state, there should be no routing loops But steady state is rare. If routing tables are not in sync, routing loops can occur. To avoid problems, IP packets maintain a maximum hop count (TTL) that is decreased on every hop until 0 is reached, at which point a packet is dropped. ...
IP Forwarding
... interfaces: m0, m1, and m2. We know that there are three networks directly connected to router R1. We know that there are two networks indirectly connected to R1. There must be at least three other routers involved (see next-hop column). We know to which networks these routers are connected by looki ...
... interfaces: m0, m1, and m2. We know that there are three networks directly connected to router R1. We know that there are two networks indirectly connected to R1. There must be at least three other routers involved (see next-hop column). We know to which networks these routers are connected by looki ...
presentation source - Networks and Mobile Systems
... System Session Abstraction • Set of network connections ...
... System Session Abstraction • Set of network connections ...
Internet Protocols
... The Internet protocols are the world’s most popular open-system (nonproprietary) protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for LAN and WAN communications. The Internet protocols consist of a suite of communication pro ...
... The Internet protocols are the world’s most popular open-system (nonproprietary) protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for LAN and WAN communications. The Internet protocols consist of a suite of communication pro ...
Energy-Efficient TCP Operation in Wireless Sensor Networks
... transfer as our mechanisms. It can provide a caching mechanism within the intermediate nodes, but requires additional negative acknowledgement (NACK) messages. These are sent by an intermediate node to its upstream neighbour, when it detects, e.g. using timeouts, holes in the data flow. As a reactio ...
... transfer as our mechanisms. It can provide a caching mechanism within the intermediate nodes, but requires additional negative acknowledgement (NACK) messages. These are sent by an intermediate node to its upstream neighbour, when it detects, e.g. using timeouts, holes in the data flow. As a reactio ...
... – individually addressed packages, like envelopes in mail – "connectionless": every packet is independent of all others – unreliable -- packets can be damaged, lost, duplicated, delivered out of order – packets can arrive too fast to be processed – stateless: no memory from one packet to next – ...
Document
... table using the longest match algorithm. Although there are some more efficient algorithms today, the principle is the same. When the forwarding algorithm gets the destination address of the packet, it needs to delve into the mask column. For each entry, it needs to apply the mask to find the destin ...
... table using the longest match algorithm. Although there are some more efficient algorithms today, the principle is the same. When the forwarding algorithm gets the destination address of the packet, it needs to delve into the mask column. For each entry, it needs to apply the mask to find the destin ...
Integrating Cisco Press Resources into the Academy Classroom
... • When a host sends data using TCP, the receiving host can control how fast each TCP sender sends the data over time – this is called flow control • Flow control is used for many reasons – Receiver needs time to process the data – Receiver has finite amount of memory, so if data keeps arriving, it c ...
... • When a host sends data using TCP, the receiving host can control how fast each TCP sender sends the data over time – this is called flow control • Flow control is used for many reasons – Receiver needs time to process the data – Receiver has finite amount of memory, so if data keeps arriving, it c ...
MAC Address - 6-byte sequence assigned to NIC by the
... (model + protocols) was not published until 1984 • by the time it took to develop OSI protocol standards, TCP/IP network architecture ...
... (model + protocols) was not published until 1984 • by the time it took to develop OSI protocol standards, TCP/IP network architecture ...
1545-13-Internet
... network: • Step 1: Forward the datagram to the right IP network • Step 2: Forward the datagram to the right IP interface Note: The concepts of autonomous system and IP network are different. ...
... network: • Step 1: Forward the datagram to the right IP network • Step 2: Forward the datagram to the right IP interface Note: The concepts of autonomous system and IP network are different. ...
Engineering elastic traffic in TCP-based networks: processor sharing and effective service times
... For completeness, in Section II-A we outline the basic effective service time model (described in detail [4]). In Section II-B, we present the refined model. A. Basic model We consider a network consisting of several WLAN stations and one access point (AP), in which the stations are downloading file ...
... For completeness, in Section II-A we outline the basic effective service time model (described in detail [4]). In Section II-B, we present the refined model. A. Basic model We consider a network consisting of several WLAN stations and one access point (AP), in which the stations are downloading file ...
How to troubleshoot TCP/IP connectivity with Windows XP
... To use the IPConfig tool to verify the TCP/IP configuration on the computer that is experiencing the problem, click Start, click Run, and then type cmd. You can now use the ipconfig command to determine the host computer configuration information, including the IP address, the subnet mask, and the d ...
... To use the IPConfig tool to verify the TCP/IP configuration on the computer that is experiencing the problem, click Start, click Run, and then type cmd. You can now use the ipconfig command to determine the host computer configuration information, including the IP address, the subnet mask, and the d ...
PDF
... very simple to implement but does not provide fair distribution of buffer space. If multiple TCP connections exist in the system and a buffer overflow will cause TCP global synchronization, which reduce the network throughput.[1]. Active Queue Management employs preventive packet drop before the rou ...
... very simple to implement but does not provide fair distribution of buffer space. If multiple TCP connections exist in the system and a buffer overflow will cause TCP global synchronization, which reduce the network throughput.[1]. Active Queue Management employs preventive packet drop before the rou ...
William Stallings Data and Computer Communications
... Set of routers and networks managed by signle organization • A connected network • There is at least one route between any pair of nodes ...
... Set of routers and networks managed by signle organization • A connected network • There is at least one route between any pair of nodes ...
Internet Secure Protocols
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...