lecture5 - Andrew.cmu.edu
... Forward units of data based on address in header. Many data-link technologies use switching. » Virtual circuits: Frame Relay, ATM, X.25, .. » Packets: Ethernet, MPLS, … “Switching” also happens at the network layer. » Layer 3: Internet protocol » In this case, address is an IP address » IP over SONE ...
... Forward units of data based on address in header. Many data-link technologies use switching. » Virtual circuits: Frame Relay, ATM, X.25, .. » Packets: Ethernet, MPLS, … “Switching” also happens at the network layer. » Layer 3: Internet protocol » In this case, address is an IP address » IP over SONE ...
Informal Quiz 7 (contd) - ECSE - Rensselaer Polytechnic Institute
... Output queuing incurs head-of-line blocking and requires relatively lower buffer access speeds compared to input queuing. To extract a 64kbps line from a T3 line, it has to be first demuxed into component T1 lines The use of pointers in SONET overcomes jitter issues for higher speed tran ...
... Output queuing incurs head-of-line blocking and requires relatively lower buffer access speeds compared to input queuing. To extract a 64kbps line from a T3 line, it has to be first demuxed into component T1 lines The use of pointers in SONET overcomes jitter issues for higher speed tran ...
cisco certified network associate
... office and/or home office (SOHO) market. The CCNA Certificate indicates the ability to work in small businesses or organizations using networks that have fewer than 100 nodes. The certificate holder is able to install and configure Cisco switches and routers in multi‐protocol interworking using ...
... office and/or home office (SOHO) market. The CCNA Certificate indicates the ability to work in small businesses or organizations using networks that have fewer than 100 nodes. The certificate holder is able to install and configure Cisco switches and routers in multi‐protocol interworking using ...
3rd Edition: Chapter 2 - Northwestern Networks Group
... Trailer address, Header and Trailer carry control Data information (e.g., destination check sum) ...
... Trailer address, Header and Trailer carry control Data information (e.g., destination check sum) ...
UKLight Dark Fibre Network - National e
... fibre is something you acquire, either through buying or leasing unused fibre, or through installing new fibre ...
... fibre is something you acquire, either through buying or leasing unused fibre, or through installing new fibre ...
Slide 1
... traditional Best Effort service • Traffic control – Packet scheduler – determines which packets will be transferred to the physical medium and in what order – Classifier – maps incoming packets into a given class for equal treatment by the packet scheduler – Admission control – determines whether or ...
... traditional Best Effort service • Traffic control – Packet scheduler – determines which packets will be transferred to the physical medium and in what order – Classifier – maps incoming packets into a given class for equal treatment by the packet scheduler – Admission control – determines whether or ...
Chapter 1 - UniMAP Portal
... Optical packet switching will not happen soon Optical-to-Electronic conversion is expensive Maximum electronic speeds << Tbps Parallel electronic processing & high expense Thus trend towards optical circuit switching in the core ...
... Optical packet switching will not happen soon Optical-to-Electronic conversion is expensive Maximum electronic speeds << Tbps Parallel electronic processing & high expense Thus trend towards optical circuit switching in the core ...
Notes: Chptr 1 - UniMAP Portal
... Optical packet switching will not happen soon Optical-to-Electronic conversion is expensive Maximum electronic speeds << Tbps Parallel electronic processing & high expense Thus trend towards optical circuit switching in the core ...
... Optical packet switching will not happen soon Optical-to-Electronic conversion is expensive Maximum electronic speeds << Tbps Parallel electronic processing & high expense Thus trend towards optical circuit switching in the core ...
Reference model
... – Each layer works independently. – Lower layers provide services to the very higher layer. ...
... – Each layer works independently. – Lower layers provide services to the very higher layer. ...
emc165_internet - Computer Science & Engineering
... company sets up 2 separate networks, one for the animators and one for the rest of the company. A router links the two networks and connects both networks to the Internet. ...
... company sets up 2 separate networks, one for the animators and one for the rest of the company. A router links the two networks and connects both networks to the Internet. ...
ppt - CIS @ Temple University
... bottleneck link link on end-end path that constrains end-end throughput Introduction 1-13 ...
... bottleneck link link on end-end path that constrains end-end throughput Introduction 1-13 ...
Routing and Packet Forwarding
... One practical realization of Dijkstra’s Algorithm is Link-State-Routing. Here the routing tables are determined with Dijkstra’s Algorithm. Therefore every vertex needs information about the entire network. Information about the connections of the network are spread by broadcast which means that one ...
... One practical realization of Dijkstra’s Algorithm is Link-State-Routing. Here the routing tables are determined with Dijkstra’s Algorithm. Therefore every vertex needs information about the entire network. Information about the connections of the network are spread by broadcast which means that one ...
chap2_2ed_5July02 - Mount Holyoke College
... • bit transparency: must carry any bit pattern in the data field • error detection (no correction) • connection liveness: detect, signal link failure to network layer • network layer address negotiation: endpoint can learn/configure each other’s network address ...
... • bit transparency: must carry any bit pattern in the data field • error detection (no correction) • connection liveness: detect, signal link failure to network layer • network layer address negotiation: endpoint can learn/configure each other’s network address ...
Measuring Application Performance with the Fluke Networks
... quickly move packets through the network. To meet these demands, such devices are becoming more intelligent with the inclusion of policy or protocol based packet forwarding mechanisms. With this increased functionality comes the need for advanced network monitoring hardware that can aid network engi ...
... quickly move packets through the network. To meet these demands, such devices are becoming more intelligent with the inclusion of policy or protocol based packet forwarding mechanisms. With this increased functionality comes the need for advanced network monitoring hardware that can aid network engi ...
Taxonomy of communication networks
... • if we know the fraction of time that the system spends at each state, we can get answers to many basic questions: how long does a new request need to wait before being served? ...
... • if we know the fraction of time that the system spends at each state, we can get answers to many basic questions: how long does a new request need to wait before being served? ...
Part I: Introduction
... There exists a specific routing algorithm, s.t., for any sequence of connections and releases, Any unused input can be routed to any unused output, assuming all the sequence was served by the routing ...
... There exists a specific routing algorithm, s.t., for any sequence of connections and releases, Any unused input can be routed to any unused output, assuming all the sequence was served by the routing ...
Follow this link to Chapter 10
... Preplanned route established before any packets sent Call request and call accept packets establish connection (handshaking) [Similar to circuit switching except that it is done with packets rather than signals] Each packet contains a virtual circuit identifier instead of destination address ...
... Preplanned route established before any packets sent Call request and call accept packets establish connection (handshaking) [Similar to circuit switching except that it is done with packets rather than signals] Each packet contains a virtual circuit identifier instead of destination address ...
A DoS-limiting Network Architecture
... Security based on inability of attacker to gain capabilities for routers along path to destination. Hashing scheme uses a sufficiently small key that changes every 128 sec. Breaking the key is practically impossible. Attacker may observe pre-capabilities in requests by routers. Stolen capabi ...
... Security based on inability of attacker to gain capabilities for routers along path to destination. Hashing scheme uses a sufficiently small key that changes every 128 sec. Breaking the key is practically impossible. Attacker may observe pre-capabilities in requests by routers. Stolen capabi ...
1404CT Lec4
... Show ip route command is used to display the contents of the routing table Link local Interfaces –Added to the routing table when an interface is configured. (displayed in IOS 15 or newer) Directly connected interfaces -Added to the routing table when an interface is configured and active. S ...
... Show ip route command is used to display the contents of the routing table Link local Interfaces –Added to the routing table when an interface is configured. (displayed in IOS 15 or newer) Directly connected interfaces -Added to the routing table when an interface is configured and active. S ...
PPT
... implement, and has a faster running time. • A maximal size matching is at least half the size of a maximum size matching. • A maximal weight matching is defined in the ...
... implement, and has a faster running time. • A maximal size matching is at least half the size of a maximum size matching. • A maximal weight matching is defined in the ...
Chapter 5: ARP
... 1. Why can’t the same address structure and value be used for network layer and hardware addresses? In IP, the network layer address is most often globally unique and is 32 bits (IPv4) or 128 bits (IPv6). On WANs, the data link layer address field is usually much smaller, for destination only, and o ...
... 1. Why can’t the same address structure and value be used for network layer and hardware addresses? In IP, the network layer address is most often globally unique and is 32 bits (IPv4) or 128 bits (IPv6). On WANs, the data link layer address field is usually much smaller, for destination only, and o ...
multicast - Data Thinker
... mcast datagram encapsulated inside “normal” (nonmulticast-addressed) datagram normal IP datagram sent thru “tunnel” via regular IP unicast to receiving mcast router (recall IPv6 inside IPv4 tunneling) receiving mcast router unencapsulates to get mcast datagram Network Layer 4-32 ...
... mcast datagram encapsulated inside “normal” (nonmulticast-addressed) datagram normal IP datagram sent thru “tunnel” via regular IP unicast to receiving mcast router (recall IPv6 inside IPv4 tunneling) receiving mcast router unencapsulates to get mcast datagram Network Layer 4-32 ...
Packet Forwarding
... Source host has no way of knowing if the network is capable of delivering a packet or if the destination host is even up. Since packets are treated independently, it is possible to route around link and node failures. Since every packet must carry the full address of the destination, the overhead pe ...
... Source host has no way of knowing if the network is capable of delivering a packet or if the destination host is even up. Since packets are treated independently, it is possible to route around link and node failures. Since every packet must carry the full address of the destination, the overhead pe ...