ppt - Carnegie Mellon School of Computer Science
... Why didn’t ALOHA have this? » Very difficult for radios to listen and transmit » Signal strength is reduced by distance for radio – Much easier to hear “local, powerful” radio station than one in NY ...
... Why didn’t ALOHA have this? » Very difficult for radios to listen and transmit » Signal strength is reduced by distance for radio – Much easier to hear “local, powerful” radio station than one in NY ...
Network Address Translation
... • Some protocols won’t work; protocols that rely on separate connections back into the local network • Theoretical max of 216 connections, actual is much less ...
... • Some protocols won’t work; protocols that rely on separate connections back into the local network • Theoretical max of 216 connections, actual is much less ...
Linux Multilayer Switchin with LiSA
... approach. Basically this means that, when you traverse a list of outgoing ports, you must postpone packet transmission to the current port (list element) until you process the next list element. This is so because you can't know what you have to do with the socket buffer until you analyze the next l ...
... approach. Basically this means that, when you traverse a list of outgoing ports, you must postpone packet transmission to the current port (list element) until you process the next list element. This is so because you can't know what you have to do with the socket buffer until you analyze the next l ...
ans - EECS: www-inst.eecs.berkeley.edu
... Q5. ACKs [8 points] Consider a flaky link where the initial transmission of a data packet is dropped if its number is prime (in other words, the initial transmissions of D2, D3, D5, D7, D11, D ...
... Q5. ACKs [8 points] Consider a flaky link where the initial transmission of a data packet is dropped if its number is prime (in other words, the initial transmissions of D2, D3, D5, D7, D11, D ...
Lecture No. 7
... ATM is designed to work on fiber (but can be used with twisted pair). A typical port on an ATM switch operates at OC-3 speed (155Mbps) or higher. ATM CRITIQUE: ATM is far more expensive than typical LAN hardware. Connection setup time may be excessive for short communications. Cell tax consumes 10% ...
... ATM is designed to work on fiber (but can be used with twisted pair). A typical port on an ATM switch operates at OC-3 speed (155Mbps) or higher. ATM CRITIQUE: ATM is far more expensive than typical LAN hardware. Connection setup time may be excessive for short communications. Cell tax consumes 10% ...
slides - DEEPNESS Lab
... Session Reconstruction Decrypt/Decompress Traffic Normalizer DPI Traffic Measurement ...
... Session Reconstruction Decrypt/Decompress Traffic Normalizer DPI Traffic Measurement ...
Key Terms
... belongs in the Internet Layer. It obtains the MAC (physical) address of a host or node and then creates a local database that maps the MAC address to the host’s IP (logical) address. ...
... belongs in the Internet Layer. It obtains the MAC (physical) address of a host or node and then creates a local database that maps the MAC address to the host’s IP (logical) address. ...
Document
... VCs are uni-directional, for bi-directional communication, a pair of VCs – one in each direction –is needed. Tunnel LSPs between the PE routers could be created using any protocol like RSVP/TE or LDP PE routers exchange the VC labels via LDP The PE router encapsulates the subscriber layer- 2 f ...
... VCs are uni-directional, for bi-directional communication, a pair of VCs – one in each direction –is needed. Tunnel LSPs between the PE routers could be created using any protocol like RSVP/TE or LDP PE routers exchange the VC labels via LDP The PE router encapsulates the subscriber layer- 2 f ...
Adding Virtual Machines to the GNS3 Topology
... Check the Host machine Virtual Network Adapters Configuration When VMWare created the virtual networks, associated Virtual Network Adapters are created. Check the configurations are correct for the virtual networks you are going to use. On the host machine, go to the Network Sharing Centre, and che ...
... Check the Host machine Virtual Network Adapters Configuration When VMWare created the virtual networks, associated Virtual Network Adapters are created. Check the configurations are correct for the virtual networks you are going to use. On the host machine, go to the Network Sharing Centre, and che ...
Acadia - IT, Sligo
... There is no redundancy of router link at POP. If the WAN link fails there will be no access to other resources in the district or access to the Internet The use of switches increase the network latency as well as initial cost of the network Expensive to implement Password security is based on user c ...
... There is no redundancy of router link at POP. If the WAN link fails there will be no access to other resources in the district or access to the Internet The use of switches increase the network latency as well as initial cost of the network Expensive to implement Password security is based on user c ...
SkyMesh™ 1/2/4200 Series Satellite Router Terminal
... width on Demand), for bandwidth sharing among all sites in a network. When the terminal operates in Network Mode, it func ons as a mul ‐channel smart IP satellite router in a star/mesh VSAT network. Due to SkyMesh™ X200 termi‐ nal’s low latency and high channel efficiency, it is a superior choice aga ...
... width on Demand), for bandwidth sharing among all sites in a network. When the terminal operates in Network Mode, it func ons as a mul ‐channel smart IP satellite router in a star/mesh VSAT network. Due to SkyMesh™ X200 termi‐ nal’s low latency and high channel efficiency, it is a superior choice aga ...
No Slide Title
... • The physical or MAC address that a host has is only locally significant, identifying the host within the local area network. • Since the MAC address is a Layer 2 address, the router does not use it to forward outside the LAN. • IP addresses are the most commonly used addresses for Internet communi ...
... • The physical or MAC address that a host has is only locally significant, identifying the host within the local area network. • Since the MAC address is a Layer 2 address, the router does not use it to forward outside the LAN. • IP addresses are the most commonly used addresses for Internet communi ...
Glossary
... Data (D) channel – An ISDN channel used primarily for carrying control signals, which can also be used for low– speed data transfers. ...
... Data (D) channel – An ISDN channel used primarily for carrying control signals, which can also be used for low– speed data transfers. ...
01_tcom5272_intro
... Objective: Determine the physical address of the NIC in a computer. Description: Provides an opportunity to determine the physical address of a network interface card (NIC) in a computer. You need access to a computer that is connected to a network and that runs Windows XP, Windows Server 2003, ...
... Objective: Determine the physical address of the NIC in a computer. Description: Provides an opportunity to determine the physical address of a network interface card (NIC) in a computer. You need access to a computer that is connected to a network and that runs Windows XP, Windows Server 2003, ...
Hour 5
... A print server operates a printer and fulfills requests to print documents on that printer. A file server operates a data storage device, such as a hard drive, and fulfills requests to read or write data to that device ...
... A print server operates a printer and fulfills requests to print documents on that printer. A file server operates a data storage device, such as a hard drive, and fulfills requests to read or write data to that device ...
Chapter 2 Protocols and TCP/IP
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. Application layer Transport layer ...
... Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • No official model but a working one. Application layer Transport layer ...
Switching vs Routing Overview
... A switch does not just pass electrical signals along, like a hub does; instead, it assembles the signals into a frame (layer two), and then decides what to do with the frame. A switch determines what to do with a frame by borrowing an algorithm from another common networking device: a transparent br ...
... A switch does not just pass electrical signals along, like a hub does; instead, it assembles the signals into a frame (layer two), and then decides what to do with the frame. A switch determines what to do with a frame by borrowing an algorithm from another common networking device: a transparent br ...
Slide 1
... Clients – computer that requests resources from another computer Server – computer on the network that manages shared resources Workstation – desktop computer, most clients are workstations Network interface card ( NIC) – device that connects a computer to the network media Network operating system ...
... Clients – computer that requests resources from another computer Server – computer on the network that manages shared resources Workstation – desktop computer, most clients are workstations Network interface card ( NIC) – device that connects a computer to the network media Network operating system ...
P2P Protocols
... Network layer solution Internet routers responsible for multicasting ◦ Group membership: remember group members for each multicast session ◦ Multicast routing: route data to members ...
... Network layer solution Internet routers responsible for multicasting ◦ Group membership: remember group members for each multicast session ◦ Multicast routing: route data to members ...
Midterm2 Solution
... reached. Yes, in the case of packet loss or time out. b. Specify the IP network address, the host range, and the subnet mask for a subnet that can contain up to 30 clients. What is the maximum number of hosts per subnet if you have 24 subnet mask bits? Answer: 192.168.0.0; Host range: ...
... reached. Yes, in the case of packet loss or time out. b. Specify the IP network address, the host range, and the subnet mask for a subnet that can contain up to 30 clients. What is the maximum number of hosts per subnet if you have 24 subnet mask bits? Answer: 192.168.0.0; Host range: ...
COMP 2122 Assignment 2
... You manage a domain with three groups: MANAGERS, TECHNICAL, ADMIN, and staff are allocated to them accordingly. A particular folder /SMTMEETINGS on the main domain controller is configured so that MANAGERS have full access through a SHARE, but ADMIN personnel can only use that SHARE for read access. ...
... You manage a domain with three groups: MANAGERS, TECHNICAL, ADMIN, and staff are allocated to them accordingly. A particular folder /SMTMEETINGS on the main domain controller is configured so that MANAGERS have full access through a SHARE, but ADMIN personnel can only use that SHARE for read access. ...
Introduction to computer networks
... Internet congestioncontrol: Attempts to prevent Internet gridlock Network Protocols and HTTP ...
... Internet congestioncontrol: Attempts to prevent Internet gridlock Network Protocols and HTTP ...
슬라이드 1
... earlier marking will not be overwritten by the routers close to the victim, which presumably handle the majority of the victim's traffic anyway. We would like a small o value, so that as many routers as possible will mark the packet. We therefore choose o=0 for our tests with n=1. For n=2, however, ...
... earlier marking will not be overwritten by the routers close to the victim, which presumably handle the majority of the victim's traffic anyway. We would like a small o value, so that as many routers as possible will mark the packet. We therefore choose o=0 for our tests with n=1. For n=2, however, ...
IC30304pt2
... IP addresses logically split into two parts. First part identifies network. Second part identifies host on that network. Example: the IP address 192.168.0.20: – 192.168.0.x identifies network. – y.y.y.20 identifies host on network. – We have a network with up to 256 (in fact 254) hosts (.0 and .255 ...
... IP addresses logically split into two parts. First part identifies network. Second part identifies host on that network. Example: the IP address 192.168.0.20: – 192.168.0.x identifies network. – y.y.y.20 identifies host on network. – We have a network with up to 256 (in fact 254) hosts (.0 and .255 ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.