Chapter 2 - William Stallings, Data and Computer
... • The peer layers communicate using a set of rules or conventions known as a protocol. • Instead of implementing the complex logic for this as a single module, the task is broken up into modules. • In a protocol architecture, the modules are arranged in a vertical stack, each layer in the stack perf ...
... • The peer layers communicate using a set of rules or conventions known as a protocol. • Instead of implementing the complex logic for this as a single module, the task is broken up into modules. • In a protocol architecture, the modules are arranged in a vertical stack, each layer in the stack perf ...
OSI Reference Model
... Network devices are commonly identified by the OSI layer they operate at; or, more specifically, what header or PDU the device processes. For example, switches are generally identified as Layer-2 devices, as switches process information stored in the Data-Link header of a frame, such as Ethernet MAC ...
... Network devices are commonly identified by the OSI layer they operate at; or, more specifically, what header or PDU the device processes. For example, switches are generally identified as Layer-2 devices, as switches process information stored in the Data-Link header of a frame, such as Ethernet MAC ...
CCNA - Day 1 - UMT Admin Panel
... Network topology defines the structure of the network. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. The other part is the logical topology,which defines how the media is accessed by the hosts for sending data. ...
... Network topology defines the structure of the network. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. The other part is the logical topology,which defines how the media is accessed by the hosts for sending data. ...
行動多媒體通訊標準參考模式(Reference Models)
... – Macromobility refers to user mobility that is infrequent and also spans considerable space, often between several administrative domain. ...
... – Macromobility refers to user mobility that is infrequent and also spans considerable space, often between several administrative domain. ...
Lect15
... datagram service'' between hosts. • Transport protocols provide end-to-end delivery between endpoints of a connection; e.g., processes or programs. • User Datagram Protocol (UDP) provides datagram service. • Transmission Control Protocol (TCP) provides reliable data delivery. IP ...
... datagram service'' between hosts. • Transport protocols provide end-to-end delivery between endpoints of a connection; e.g., processes or programs. • User Datagram Protocol (UDP) provides datagram service. • Transmission Control Protocol (TCP) provides reliable data delivery. IP ...
WAN Technologies
... Established path (all packets use the same path) Used for connection-oriented services such as streaming video ...
... Established path (all packets use the same path) Used for connection-oriented services such as streaming video ...
EECC694 - Shaaban
... • Bootstrap protocol BOOTP: Uses UDP packets which can be forwarded to routers No need for a BOOTP server on each LAN. EECC694 - Shaaban #17 lec #9 Spring2000 4-4-2000 ...
... • Bootstrap protocol BOOTP: Uses UDP packets which can be forwarded to routers No need for a BOOTP server on each LAN. EECC694 - Shaaban #17 lec #9 Spring2000 4-4-2000 ...
ELEN E6761 Fall `00
... coverage, number of nodes, administration capabilities, etc. Differ in regards to: ...
... coverage, number of nodes, administration capabilities, etc. Differ in regards to: ...
Part I: Introduction
... Multiple same-cost paths can be used at once (single path need not be chosen as in RIP) For each link, multiple cost metrics for different TOS (eg, high BW, high delay satellite link cost may set “low” for best effort; high for real time) Integrated uni- and multicast support: ...
... Multiple same-cost paths can be used at once (single path need not be chosen as in RIP) For each link, multiple cost metrics for different TOS (eg, high BW, high delay satellite link cost may set “low” for best effort; high for real time) Integrated uni- and multicast support: ...
Security In Wireless Sensor Networks
... Random-key pre-distribution protocols • Large pool of symmetric keys is chosen • Random subset of the pool is distributed to each sensor node • To communicate, two nodes search their pools for a common key – If they find one, they use it to establish a session key – Not every pair of nodes shares a ...
... Random-key pre-distribution protocols • Large pool of symmetric keys is chosen • Random subset of the pool is distributed to each sensor node • To communicate, two nodes search their pools for a common key – If they find one, they use it to establish a session key – Not every pair of nodes shares a ...
In VINI Veritas - Georgia Institute of Technology
... • First experiment: Internet In A Slice – XORP open-source routing protocol suite (NSDI ’05) – Click modular router (TOCS ’00, SOSP ’99) ...
... • First experiment: Internet In A Slice – XORP open-source routing protocol suite (NSDI ’05) – Click modular router (TOCS ’00, SOSP ’99) ...
Document
... Needs to be robust Provide protection from programs that crash Provide a mechanism for file transfer Provide multi tasking Allow background processes to take place ...
... Needs to be robust Provide protection from programs that crash Provide a mechanism for file transfer Provide multi tasking Allow background processes to take place ...
S6C6 – X.25
... – "always on," high-speed Internet connections using DSL or cable – packet-switched network (PSN) services • “always on" connections or • temporary "switched" circuits ...
... – "always on," high-speed Internet connections using DSL or cable – packet-switched network (PSN) services • “always on" connections or • temporary "switched" circuits ...
ppt
... Link-state advertisements only in area each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. ...
... Link-state advertisements only in area each nodes has detailed area topology; only know direction (shortest path) to nets in other areas. ...
Ethernet
... Many E-net technologies (cable, fiber etc). But they all share common characteristics Original Metcalfe design that led to the 10Base5 Ethernet standard (mid 1970s) Ethernet could use either a bus or a star topology 5: Link Layer and Local Area Networks ...
... Many E-net technologies (cable, fiber etc). But they all share common characteristics Original Metcalfe design that led to the 10Base5 Ethernet standard (mid 1970s) Ethernet could use either a bus or a star topology 5: Link Layer and Local Area Networks ...
Document
... involved know nothing about each other or the data being sent. Makes no attempt to cause networks senders and receivers to exchange information about their availability or ability to communicate with one another, “best effort” delivery. (Type supported by IP, UDP). Not reliable, but faster and may b ...
... involved know nothing about each other or the data being sent. Makes no attempt to cause networks senders and receivers to exchange information about their availability or ability to communicate with one another, “best effort” delivery. (Type supported by IP, UDP). Not reliable, but faster and may b ...
Transport Layer Protocols TCP and UDP
... involved know nothing about each other or the data being sent. Makes no attempt to cause networks senders and receivers to exchange information about their availability or ability to communicate with one another, “best effort” delivery. (Type supported by IP, UDP). Not reliable, but faster and may b ...
... involved know nothing about each other or the data being sent. Makes no attempt to cause networks senders and receivers to exchange information about their availability or ability to communicate with one another, “best effort” delivery. (Type supported by IP, UDP). Not reliable, but faster and may b ...
UDP—User Datagram Protocol - Department of Computer and
... • Two additional functions beyond IP: – Demultiplexing: deliver to different upper layer entities such as DNS, RTP, SNMP based on the destination port # in the header. i.e., UDP can support multiple applications in the same end systems. – (Optionally) check the integrity of entire UDP. (recall IP on ...
... • Two additional functions beyond IP: – Demultiplexing: deliver to different upper layer entities such as DNS, RTP, SNMP based on the destination port # in the header. i.e., UDP can support multiple applications in the same end systems. – (Optionally) check the integrity of entire UDP. (recall IP on ...
Rich_characteristics_v3_GGF7
... The aim of this characteristic is to indicate what throughput a real user application would expect as opposed to what the network engineer could obtain. ...
... The aim of this characteristic is to indicate what throughput a real user application would expect as opposed to what the network engineer could obtain. ...
system engineering and network architecture level
... routing traffic through them, enabling QoS network paths, preventing malicious attacks (security) etc. This allows, for example, data routing to exploit multiple redundant paths across different available communication environments. ...
... routing traffic through them, enabling QoS network paths, preventing malicious attacks (security) etc. This allows, for example, data routing to exploit multiple redundant paths across different available communication environments. ...
Networks
... Divides and sends outgoing messages as packets, which are reassembled on receipt Router consult a table of possible pathways Packets may not all take the same path or arrive in the order they are sent. More efficient and less expensive than circuit switching Latency—delay introduced when a ...
... Divides and sends outgoing messages as packets, which are reassembled on receipt Router consult a table of possible pathways Packets may not all take the same path or arrive in the order they are sent. More efficient and less expensive than circuit switching Latency—delay introduced when a ...
Recursive InterNetwork Architecture (RINA)
The Recursive InterNetwork Architecture (RINA) is a computer network architecture that unifies distributed computing and telecommunications. RINA's fundamental principle is that computer networking is just Inter-Process Communication or IPC. RINA reconstructs the overall structure of the Internet, forming a model that comprises a single repeating layer, the DIF (Distributed IPC Facility), which is the minimal set of components required to allow distributed IPC between application processes. RINA inherently supports mobility, multi-homing and Quality of Service without the need for extra mechanisms, provides a secure and programmable environment, motivates for a more competitive marketplace, and allows for a seamless adoption.