n - CMLab
... (b)Suppose that a packet-switched network is used and the only traffic in this network comes from such applications as described above. Furthermore, assume that the sum of the application data rates is less than the capacities of each and every link. Is some form of congestion control needed? Why? a ...
... (b)Suppose that a packet-switched network is used and the only traffic in this network comes from such applications as described above. Furthermore, assume that the sum of the application data rates is less than the capacities of each and every link. Is some form of congestion control needed? Why? a ...
Slide 1
... Can synchronize over any LAN Wireless: WiFi (802.11b), 802.11a Wired: Ethernet, Token-ring ...
... Can synchronize over any LAN Wireless: WiFi (802.11b), 802.11a Wired: Ethernet, Token-ring ...
network topology
... central evaluation module (EM). • a smartphone with BLE technology supported by third party applications. ...
... central evaluation module (EM). • a smartphone with BLE technology supported by third party applications. ...
VoIPpre
... SJphone: PC voice client to speak over internet uses SIP and H.323 protocols NetMeeting: Allows point to point audio communication using H.323 MSN: Allows you to make phone calls over the internet using SIP Intel NetStructure Host Media Processing (HMP): Conference host for up to120 H.323 an ...
... SJphone: PC voice client to speak over internet uses SIP and H.323 protocols NetMeeting: Allows point to point audio communication using H.323 MSN: Allows you to make phone calls over the internet using SIP Intel NetStructure Host Media Processing (HMP): Conference host for up to120 H.323 an ...
RESEARCH PAPER
... Script Component – specifies set of scripts that can be executed by state machines Attack Task Specification Component – provides user with interface to specify attack attributes Probabilistic decision making model – used to determine hackers agent further action in attack generation Network Traffic ...
... Script Component – specifies set of scripts that can be executed by state machines Attack Task Specification Component – provides user with interface to specify attack attributes Probabilistic decision making model – used to determine hackers agent further action in attack generation Network Traffic ...
lecture1424803314
... The Internet system consists of a number of interconnected packet networks supporting communication among host computers using the Internet protocols. These protocols include the Internet Protocol (IP), the Internet Control Message Protocol (ICMP), the Internet Group Management Protocol (IGMP), and ...
... The Internet system consists of a number of interconnected packet networks supporting communication among host computers using the Internet protocols. These protocols include the Internet Protocol (IP), the Internet Control Message Protocol (ICMP), the Internet Group Management Protocol (IGMP), and ...
ppt
... Easy to renumber (one number) Only need one IP Breaks transparency (need to add functionality for each new protocol) Hard for outside hosts to access inside – Ex: what if two different Quake3 servers inside? – Need non-standard ports that clients know about ...
... Easy to renumber (one number) Only need one IP Breaks transparency (need to add functionality for each new protocol) Hard for outside hosts to access inside – Ex: what if two different Quake3 servers inside? – Need non-standard ports that clients know about ...
Lecture 3b - Anonymity in networks
... Still need appropriate protocols in case nodes are compromised Still need EMI emission elimination (TEMPEST) ...
... Still need appropriate protocols in case nodes are compromised Still need EMI emission elimination (TEMPEST) ...
Countering Dos Attacks with Stateless Multipath Overlays
... Target attack: Attacker can follow the client’s connection and bring down the nodes which client tries to connect to. Sweep attack: Degrade the connection by bringing down a portion of the overlay nodes at a time ...
... Target attack: Attacker can follow the client’s connection and bring down the nodes which client tries to connect to. Sweep attack: Degrade the connection by bringing down a portion of the overlay nodes at a time ...
102803
... – outgoing datagrams: replace (source IP address, port #) of every outgoing datagram to (NAT IP address, new port #) • . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. ...
... – outgoing datagrams: replace (source IP address, port #) of every outgoing datagram to (NAT IP address, new port #) • . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. ...
A very important part of network building is LAN connectivity
... Similar actions occur when packet is sent from user C to user A. In most cases the devices interconnecting the VLANs are intermediate routers and it means that only one MAC address would be required in the configuration. The router itself would need to define ARP entries for other connected routers ...
... Similar actions occur when packet is sent from user C to user A. In most cases the devices interconnecting the VLANs are intermediate routers and it means that only one MAC address would be required in the configuration. The router itself would need to define ARP entries for other connected routers ...
Slide 1
... What is 802.15.4? • IEEE standard for low cost, low speed, low power wireless communication • Targeted at device to device communication • Supports multiple frequencies, including the worldwide unlicensed 2.4 GHz band – Sixteen 802.15.4 channels – Shares spectrum with 802.11 (WiFi) and Bluetooth ...
... What is 802.15.4? • IEEE standard for low cost, low speed, low power wireless communication • Targeted at device to device communication • Supports multiple frequencies, including the worldwide unlicensed 2.4 GHz band – Sixteen 802.15.4 channels – Shares spectrum with 802.11 (WiFi) and Bluetooth ...
router rip
... Discontiguous Addressing • Two networks of the same classful networks are separated by a different network address ...
... Discontiguous Addressing • Two networks of the same classful networks are separated by a different network address ...
Preamble Analysis of Computer Networking and
... A. Layer 1- Physical Layer: The first layer in the OSI model is the Physical layer which transmits raw bit streams over a physical medium. The Physical layer deals with establishing a physical connection between computers to enable communication. The physical layer is hardware specific and deals wit ...
... A. Layer 1- Physical Layer: The first layer in the OSI model is the Physical layer which transmits raw bit streams over a physical medium. The Physical layer deals with establishing a physical connection between computers to enable communication. The physical layer is hardware specific and deals wit ...
CCNA Cheat Sheet Internetworking Essentials
... © Copyright 2010 Internetwork Training – Although the authors of have made every effort to ensure the information in this document is correct, the authors do not assume and hereby disclaim any liability to any party for loss or damage caused by errors, omissions or misleading information. ...
... © Copyright 2010 Internetwork Training – Although the authors of have made every effort to ensure the information in this document is correct, the authors do not assume and hereby disclaim any liability to any party for loss or damage caused by errors, omissions or misleading information. ...
Data communications - O6U E
... transmit and receive simultaneously. - Signal going in one direction share the capacity of the link with signals going in the other direction . This share can occur in two ways : - Either the link must contain two physically separate transmission paths one for sending and the other for receiving or ...
... transmit and receive simultaneously. - Signal going in one direction share the capacity of the link with signals going in the other direction . This share can occur in two ways : - Either the link must contain two physically separate transmission paths one for sending and the other for receiving or ...
Introduction to computer networkd #9
... its default router R1. – R1 checks its routing table and finds that the next hop for the route to the network for Host B is router R2. – If Host A and R2 are on the same network that is also directly attached to R1, an ICMP Redirect message is sent to Host A informing it that R2 is the better route ...
... its default router R1. – R1 checks its routing table and finds that the next hop for the route to the network for Host B is router R2. – If Host A and R2 are on the same network that is also directly attached to R1, an ICMP Redirect message is sent to Host A informing it that R2 is the better route ...
Module 4 unit 3, 4
... header occupies 40 bytes, while the extension headers and data from the upper layer contain up to 65,535 bytes. ...
... header occupies 40 bytes, while the extension headers and data from the upper layer contain up to 65,535 bytes. ...
ppt
... Switch: moves bits between links – Why do we need switching? – Packet switching » Interleave packets from different sources » Efficient: resources used on demand Statistical multiplexing – rather than arbitrarily assigning a time slot to each signal, each signal is assigned a slot according to pri ...
... Switch: moves bits between links – Why do we need switching? – Packet switching » Interleave packets from different sources » Efficient: resources used on demand Statistical multiplexing – rather than arbitrarily assigning a time slot to each signal, each signal is assigned a slot according to pri ...
Architecture
... Routing state is held by network (why?) No failure information is given to ends (why?) ...
... Routing state is held by network (why?) No failure information is given to ends (why?) ...
Networking - Clydebank High School
... Packet Unit of data formatted for transmission on a network. Data is broken up into packets for sending over a packet switching network. ...
... Packet Unit of data formatted for transmission on a network. Data is broken up into packets for sending over a packet switching network. ...
Switches
... Figure 1-11: Internets • Packets are carried within frames – One packet is transmitted from the source host to the destination host • Its IP destination address is that of the destination host – In each network, the packet is carried in (encapsulated in) a frame (Figure 1-12) – If there are N netwo ...
... Figure 1-11: Internets • Packets are carried within frames – One packet is transmitted from the source host to the destination host • Its IP destination address is that of the destination host – In each network, the packet is carried in (encapsulated in) a frame (Figure 1-12) – If there are N netwo ...
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.