Deployed and Emerging Security Systems for the Internet
... What’s a “different” protocol • Reasonable definition: If has a different Ethertype • New version: share the same Ethertype • If you ever make the format incompatible, change the version number • Which means you can’t just specify what you set the field to, but that you should drop something with a ...
... What’s a “different” protocol • Reasonable definition: If has a different Ethertype • New version: share the same Ethertype • If you ever make the format incompatible, change the version number • Which means you can’t just specify what you set the field to, but that you should drop something with a ...
Network - Storr Consulting
... decides which way to send each information packet based on its current understanding of the state of the networks it is connected to. A router is located at any gateway (where one network meets another), including each Internet point-ofpresence. A router is often included as part of a network swit ...
... decides which way to send each information packet based on its current understanding of the state of the networks it is connected to. A router is located at any gateway (where one network meets another), including each Internet point-ofpresence. A router is often included as part of a network swit ...
CS 5480/6480: Computer Networks – Spring 2012 Homework 4
... ISPs transmit at the same time, there will be a collision. For 802.11b, the maximum aggregate transmission rate for the two ISPs is 11 Mbps. b. Now if two wireless stations in different ISPs (and hence different channels) transmit at the same time, there will not be a collision. Thus, the maximum ag ...
... ISPs transmit at the same time, there will be a collision. For 802.11b, the maximum aggregate transmission rate for the two ISPs is 11 Mbps. b. Now if two wireless stations in different ISPs (and hence different channels) transmit at the same time, there will not be a collision. Thus, the maximum ag ...
ppt
... order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
... order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
free sample here
... Which of the following is a true statement about the OSI model layers? A. The layers cannot communicate with one another. B. Any layer can communicate directly with any other layer. C. Any layer can communicate only with the layer directly above or below it. D. Any layer can communicate only with th ...
... Which of the following is a true statement about the OSI model layers? A. The layers cannot communicate with one another. B. Any layer can communicate directly with any other layer. C. Any layer can communicate only with the layer directly above or below it. D. Any layer can communicate only with th ...
Darwin: Customizable Resource Management for Value
... Preamble is 7 bytes of 10101010 (5 MHz square wave) followed by one byte of ...
... Preamble is 7 bytes of 10101010 (5 MHz square wave) followed by one byte of ...
Chapter 5
... Typically used on WANs The fixed packet in ATM is called a cell A unique aspect of ATM technology is that it relies on virtual circuits ...
... Typically used on WANs The fixed packet in ATM is called a cell A unique aspect of ATM technology is that it relies on virtual circuits ...
ppt
... order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
... order bits) host part (low order bits) What’s a network ? (from IP address perspective) device interfaces with same network part of IP address can physically reach each other without intervening router ...
ch16distributed_systems
... Users are aware of multiplicity of machines. Access to resources of various machines is done explicitly by: Remote logging into the appropriate remote ...
... Users are aware of multiplicity of machines. Access to resources of various machines is done explicitly by: Remote logging into the appropriate remote ...
3.1 Introduction to ARP
... 3.4 ARP Related Issues • ARP requests contain the device's IP/physical address pair, so the destination host and other hosts on the physical network can note them in their tables. • ARP cache to reduce ARP broadcast (high cost because all hosts need to process). Entries in the cache can be updated. ...
... 3.4 ARP Related Issues • ARP requests contain the device's IP/physical address pair, so the destination host and other hosts on the physical network can note them in their tables. • ARP cache to reduce ARP broadcast (high cost because all hosts need to process). Entries in the cache can be updated. ...
Basic Networking - Villanova University
... default gateway • NAT allows a network administrator to “hide” IP addresses assigned to nodes on a private network • ICS is a service that allows a network of computers to share a single Internet connection through an ICS ...
... default gateway • NAT allows a network administrator to “hide” IP addresses assigned to nodes on a private network • ICS is a service that allows a network of computers to share a single Internet connection through an ICS ...
Apple Darwin Streaming Server
... Each customer initiates the stream from the beginning No customer ever comes in “late” to the stream No broadcasting software is required ...
... Each customer initiates the stream from the beginning No customer ever comes in “late” to the stream No broadcasting software is required ...
Slides - the GMU ECE Department
... Manually simulated secret share exchange • Analyzed for 10 node hierarchical network • Analyzed 3 types of topology • Observed the following: – Node 0 (broadcast node) is first to achieve threshold – Leaf nodes are last to receive all shares – Independent of topology – Each node on average re-broadc ...
... Manually simulated secret share exchange • Analyzed for 10 node hierarchical network • Analyzed 3 types of topology • Observed the following: – Node 0 (broadcast node) is first to achieve threshold – Leaf nodes are last to receive all shares – Independent of topology – Each node on average re-broadc ...
Presentation
... IBP: The Internet Backplane Protocol » Storage provisioned on community “depots” » Very primitive service (similar to block service, but more sharable) • Goal is to be a common platform (exposed) • Also part of end-to-end design » Best effort service – no heroic measures • Availability, reliability ...
... IBP: The Internet Backplane Protocol » Storage provisioned on community “depots” » Very primitive service (similar to block service, but more sharable) • Goal is to be a common platform (exposed) • Also part of end-to-end design » Best effort service – no heroic measures • Availability, reliability ...
Client-server Systems - University of Manitoba
... Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses. ...
... Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses. ...
Quidway® S3900 Series Switches
... The S5600 Series support Centralized MAC address authentication, it controls accesses to a network through ports and MAC addresses. This kind of authentication requires no client software. When operating in centralized MAC address authentication mode, a switch begins to authenticate the user if it d ...
... The S5600 Series support Centralized MAC address authentication, it controls accesses to a network through ports and MAC addresses. This kind of authentication requires no client software. When operating in centralized MAC address authentication mode, a switch begins to authenticate the user if it d ...
MI424WR Verizon FiOS Router Datasheet
... that any other home router on the market. It is the first device to feature a dual-core,64-bit processor that allows it to support home networking speeds up to 1 Gbps (when equipped with Gigabit Ethernet interface) and permits digital entertainment and information content to be transmitted and distr ...
... that any other home router on the market. It is the first device to feature a dual-core,64-bit processor that allows it to support home networking speeds up to 1 Gbps (when equipped with Gigabit Ethernet interface) and permits digital entertainment and information content to be transmitted and distr ...
A Big Test Result - Knowledge Systems Institute
... • The protocols that support multipath LAN-to-LAN communications are known as routable protocols. • Because routable protocols can be used to tie several LANs together and create new wide-area environments, they are becoming more important in modern internetworking environment. ...
... • The protocols that support multipath LAN-to-LAN communications are known as routable protocols. • Because routable protocols can be used to tie several LANs together and create new wide-area environments, they are becoming more important in modern internetworking environment. ...
SSL and IPSec
... Client’s version of SSL Highest version of SSL that Client, Server both understand nonces (timestamp and 28 random bytes) Current session id (0 if new session) Ciphers that client understands Compression algorithms that client understand Cipher to be used Compression algorithm to be used ...
... Client’s version of SSL Highest version of SSL that Client, Server both understand nonces (timestamp and 28 random bytes) Current session id (0 if new session) Ciphers that client understands Compression algorithms that client understand Cipher to be used Compression algorithm to be used ...
ppt
... Tolerance of reordering and duplication Ability to fragment fragments Reassembly done at the endpoint Puts pressure on the receiver, not network interior Consequences of fragmentation: Loss of any fragments causes loss of entire packet Need to time-out reassembly when any fragments lost ...
... Tolerance of reordering and duplication Ability to fragment fragments Reassembly done at the endpoint Puts pressure on the receiver, not network interior Consequences of fragmentation: Loss of any fragments causes loss of entire packet Need to time-out reassembly when any fragments lost ...
cs516 midterm solution
... The TCP/IP protocol suite includes two transport-layer protocols, UDP and TCP. (a) How does UDP determine whether the received PDU is damaged? [2 marks] [2 marks for correct answer] z by performing a checksum calculation on the received UDP header and data and comparing with the checksum field in th ...
... The TCP/IP protocol suite includes two transport-layer protocols, UDP and TCP. (a) How does UDP determine whether the received PDU is damaged? [2 marks] [2 marks for correct answer] z by performing a checksum calculation on the received UDP header and data and comparing with the checksum field in th ...
QoS Issues in BcN
... • IGMP - Internet Group Management Protocol (RFC 1112) – defines how hosts tell routers which groups they are part of; available on Unix, PCs, Mac – routers query directly connected hosts sending an IGMP query to 224.0.0.1 (i.e., all multicast systems) • when there is more than one multicast router ...
... • IGMP - Internet Group Management Protocol (RFC 1112) – defines how hosts tell routers which groups they are part of; available on Unix, PCs, Mac – routers query directly connected hosts sending an IGMP query to 224.0.0.1 (i.e., all multicast systems) • when there is more than one multicast router ...
Dave Hollinger`s TCP/IP slides from RPI
... structure as the IP datagram. IP specifies that datagram reassembly is done only at the destination (not on a hopby-hop basis). If any of the fragments are lost - the entire datagram is discarded (and an ICMP message is sent to the sender). ...
... structure as the IP datagram. IP specifies that datagram reassembly is done only at the destination (not on a hopby-hop basis). If any of the fragments are lost - the entire datagram is discarded (and an ICMP message is sent to the sender). ...
