Europa: Efficient User Mode Packet Forwarding in Network Virtualization
... should be isolated from each other to minimize the interference among them. However, it is challenging to build a shared substrate that can support multiple concurrent virtual networks. The intrinsic heterogeneous nature of network innovations requires that a virtual network must be highly flexible ...
... should be isolated from each other to minimize the interference among them. However, it is challenging to build a shared substrate that can support multiple concurrent virtual networks. The intrinsic heterogeneous nature of network innovations requires that a virtual network must be highly flexible ...
tom
... overlay and P2P applications • Such applications flexible on paths and targets, thus can benefit from E2E distance monitoring – Overlay routing/location – VPN management/provisioning – Service redirection/placement … ...
... overlay and P2P applications • Such applications flexible on paths and targets, thus can benefit from E2E distance monitoring – Overlay routing/location – VPN management/provisioning – Service redirection/placement … ...
ppt - The Fengs
... • Similar to RouteRecord, collects intermediate hops along the way to destination • Over time, leaves a trail of where packets are being sourced from ...
... • Similar to RouteRecord, collects intermediate hops along the way to destination • Over time, leaves a trail of where packets are being sourced from ...
Packet Switching, ATM, switch Fabric
... per-packet header overhead small. If a switch or a link in a connection fails, the connection is broken and a new one needs to be established. Connection setup provides an opportunity to ...
... per-packet header overhead small. If a switch or a link in a connection fails, the connection is broken and a new one needs to be established. Connection setup provides an opportunity to ...
Receiver-driven Layered Multicast
... video signal the source sends several layers of encoded signal – each layer incrementally refining the quality of the signal Intermediate Routers drop higher layers when congestion occurs ...
... video signal the source sends several layers of encoded signal – each layer incrementally refining the quality of the signal Intermediate Routers drop higher layers when congestion occurs ...
IP Datagram Header - California State University, Long Beach
... FLAGS -- 3-bit field with individual bits specifying whether the datagram is a fragment FRAGMENT OFFSET -- 13-bit field that specifies where in the original datagram the data in this fragment belongs (the value of the field is multiplied by 8 to obtain an offset) ...
... FLAGS -- 3-bit field with individual bits specifying whether the datagram is a fragment FRAGMENT OFFSET -- 13-bit field that specifies where in the original datagram the data in this fragment belongs (the value of the field is multiplied by 8 to obtain an offset) ...
What is IPv6?
... – Reduce the lifetime of the old prefix – As nodes deprecate the old prefix, they begin using the new prefix for new connections – No network downtime ...
... – Reduce the lifetime of the old prefix – As nodes deprecate the old prefix, they begin using the new prefix for new connections – No network downtime ...
CCIE Security Written Exam Study Guide
... quality and value. Each book is authored with attention to detail, undergoing strenuous development that involves input from a variety of technical experts. For technical support on this book, please visit: www.securityie.com Readers’ feedback is a natural part of this process. If you have any comme ...
... quality and value. Each book is authored with attention to detail, undergoing strenuous development that involves input from a variety of technical experts. For technical support on this book, please visit: www.securityie.com Readers’ feedback is a natural part of this process. If you have any comme ...
Network Layer - Computer Science and Engineering
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
Chapter 5 on Link/MAC Layer - Department of Computer and
... passes data in frame to network layer protocol otherwise, adapter discards frame Type: indicates higher layer protocol (mostly IP ...
... passes data in frame to network layer protocol otherwise, adapter discards frame Type: indicates higher layer protocol (mostly IP ...
Slim Fly: A Cost Effective Low-Diameter Network
... traverses a smaller number of SerDes. Another consequence is that packets visit fewer sinks and router buffers and will thus be less likely to contend with other packets flowing through the network. This enables us to reduce the number of costly routers and connections while maintaining high bisecti ...
... traverses a smaller number of SerDes. Another consequence is that packets visit fewer sinks and router buffers and will thus be less likely to contend with other packets flowing through the network. This enables us to reduce the number of costly routers and connections while maintaining high bisecti ...
Using Loss Pairs to Discover Network Properties
... While some of these methods use pairs of packets, just as the loss pair method does, the loss pair method focuses on relating drop behavior to network state, rather than on bandwidth estimation. A large effort has gone into the development of tools to measure dynamic network properties: utilization, ...
... While some of these methods use pairs of packets, just as the loss pair method does, the loss pair method focuses on relating drop behavior to network state, rather than on bandwidth estimation. A large effort has gone into the development of tools to measure dynamic network properties: utilization, ...
More Info »
... Figure 3. Flat Network with Routers Another variation of the flat network is to include routers at each site. With this topology, the routers can be placed on the same subnet as if they were connected to the same Ethernet switch, and all core routing protocols such as OSPF, RIPv2, BGP, VRRP, etc. wi ...
... Figure 3. Flat Network with Routers Another variation of the flat network is to include routers at each site. With this topology, the routers can be placed on the same subnet as if they were connected to the same Ethernet switch, and all core routing protocols such as OSPF, RIPv2, BGP, VRRP, etc. wi ...
TDC 563-98-301/302, Spring 2002 2-14 TDC 563-98
... OSPF Packet Types •Hello: Establishes and maintains neighbor relationships. •Database Description: When a router just came up, it cannot wait for all link state packets. Neighbors will send it a database description (not the full database but like an outline). From this, the router can then ask for ...
... OSPF Packet Types •Hello: Establishes and maintains neighbor relationships. •Database Description: When a router just came up, it cannot wait for all link state packets. Neighbors will send it a database description (not the full database but like an outline). From this, the router can then ask for ...
Autonomic Response to Distributed Denial of Service Attacks*
... counterparts at upstream organizations from which offending traffic is being forwarded (e.g., an Internet service provider - ISP). The upstream organizations’ administrative personnel carry out input debugging and traffic mitigation procedures on their own routers and contact their upstream counterparts. ...
... counterparts at upstream organizations from which offending traffic is being forwarded (e.g., an Internet service provider - ISP). The upstream organizations’ administrative personnel carry out input debugging and traffic mitigation procedures on their own routers and contact their upstream counterparts. ...
Why Fat-Tree? - Northwestern Networks Group
... Fat tree has identical bandwidth at any bisections Each layer has the same aggregated bandwidth Can be built using cheap devices with uniform capacity Each port supports same speed as end host All devices can transmit at line speed if packets are distributed uniform along available paths ...
... Fat tree has identical bandwidth at any bisections Each layer has the same aggregated bandwidth Can be built using cheap devices with uniform capacity Each port supports same speed as end host All devices can transmit at line speed if packets are distributed uniform along available paths ...
Chapter2R - Radford University
... Sequence numbers keep track of the bytes that have been transmitted and received Error detection and retransmission used to recover from transmission errors and losses TCP is connection-oriented: the sender and receiver must first establish an association and set initial sequence numbers before data ...
... Sequence numbers keep track of the bytes that have been transmitted and received Error detection and retransmission used to recover from transmission errors and losses TCP is connection-oriented: the sender and receiver must first establish an association and set initial sequence numbers before data ...
Sele in In ctive C nforma Cachin ation C ng with Centric h Hop c
... when returning the contents too users. Each rrouter refers to the C CtC and Offset fields when receiving a Dataa packet, and decides whether it shoould cache the D Data packet. Routeers that cache the Data packket also store thhe CtC field of the ccontents. Whenn a router receeives Interest ppackets ...
... when returning the contents too users. Each rrouter refers to the C CtC and Offset fields when receiving a Dataa packet, and decides whether it shoould cache the D Data packet. Routeers that cache the Data packket also store thhe CtC field of the ccontents. Whenn a router receeives Interest ppackets ...
Routing II
... •Provider networks built from a large number of point-to-point links that connect to routers •End user site consists of physical networks connected by routers and bridges •Each provider & end user network is likely to be an administratively independent entity •Each provider’s network is usually a si ...
... •Provider networks built from a large number of point-to-point links that connect to routers •End user site consists of physical networks connected by routers and bridges •Each provider & end user network is likely to be an administratively independent entity •Each provider’s network is usually a si ...
Chapter4b
... • An RTS packet is transmitted before data is transmitted to the receiver, then the receiver transmits a CTS packet to be heard by all nodes to grant data transfer from the sending node • After RTS/CTS packets, the sending node transmit the data ...
... • An RTS packet is transmitted before data is transmitted to the receiver, then the receiver transmits a CTS packet to be heard by all nodes to grant data transfer from the sending node • After RTS/CTS packets, the sending node transmit the data ...
FlowScan - LIVE! A Network Traffic Reporting and Visualization Tool
... Packet sampling broke some things we expected and more. • Our security team relied on the logs produced by the 1 to 1 flow exporting when investigating network abuse and technocrimes. We no longer could provide a completely accurate view of our network traffic. • We lost the ability to detect DoS at ...
... Packet sampling broke some things we expected and more. • Our security team relied on the logs produced by the 1 to 1 flow exporting when investigating network abuse and technocrimes. We no longer could provide a completely accurate view of our network traffic. • We lost the ability to detect DoS at ...
Network Layer
... They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a lot of work on our part. In return for use, we only ask the following: If you use these slides (e.g., in a class) that ...
... They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a lot of work on our part. In return for use, we only ask the following: If you use these slides (e.g., in a class) that ...
CS244a: An Introduction to Computer Networks
... • call setup/teardown for each call before data can flow – need special control protocol: “signaling” – every router on source-dest path maintains “state” (VCI translation table) for each passing call – VCI translation table at routers along the path of a call “weaving together” a “logical connectio ...
... • call setup/teardown for each call before data can flow – need special control protocol: “signaling” – every router on source-dest path maintains “state” (VCI translation table) for each passing call – VCI translation table at routers along the path of a call “weaving together” a “logical connectio ...