Measuring Next-Generation Networks: HOPI
... • Statistics: more more more… – caveats: I’m a {packrat, engineer, packet-switcher} ...
... • Statistics: more more more… – caveats: I’m a {packrat, engineer, packet-switcher} ...
CSCI6268L10 - Computer Science
... Local Routing Table • Our local routing table (on host of user1) is not going to have a route to IP of user2 – Routing table will therefore send our packet to the gateway – Gateway is the machine/router on the “edge” of the network responsible for processing all incoming/outgoing traffic from/to th ...
... Local Routing Table • Our local routing table (on host of user1) is not going to have a route to IP of user2 – Routing table will therefore send our packet to the gateway – Gateway is the machine/router on the “edge” of the network responsible for processing all incoming/outgoing traffic from/to th ...
Quality of Service in IP Networks
... the LAN. Once packets are carried off the LAN, through a layer-3 device, the 802.1p priority is removed. ...
... the LAN. Once packets are carried off the LAN, through a layer-3 device, the 802.1p priority is removed. ...
ppt - MIT
... finds a path to the destination and forwards packets along that path • Difference between routing and forwarding • Routing is finding the path • Forwarding is the action of sending the packet to the next-hop toward its destination ...
... finds a path to the destination and forwards packets along that path • Difference between routing and forwarding • Routing is finding the path • Forwarding is the action of sending the packet to the next-hop toward its destination ...
Computer Communication Networks HW8 2009/01/08 39. A network
... Ans: The mask is 20 bits long, so the network part is 20 bits. The remaining 12 bits are for the host, so 4096 host addresses exist. 45. Many companies have a policy of having two (or more) routers connecting the company to the Internet to provide some redundancy in case one of them goes down. Is th ...
... Ans: The mask is 20 bits long, so the network part is 20 bits. The remaining 12 bits are for the host, so 4096 host addresses exist. 45. Many companies have a policy of having two (or more) routers connecting the company to the Internet to provide some redundancy in case one of them goes down. Is th ...
Devices 6 - Muhammad sami
... addresses on its own as it performs its bridge functions. The bridge table is initially empty. When a frame arrives on one of the interfaces and the frame’s destination address is not in the table, then the bridge forwards copies of the frame to the output buffers preceding all of other ...
... addresses on its own as it performs its bridge functions. The bridge table is initially empty. When a frame arrives on one of the interfaces and the frame’s destination address is not in the table, then the bridge forwards copies of the frame to the output buffers preceding all of other ...
doc - EECS: www-inst.eecs.berkeley.edu
... Consider a 100-Mbps optical link with a length of 10km. Assume the link transmits packets of 10000 bits. (The speed of light is 2x108 m/sec). From the start of a packet transmission until the last bit of the packet arrives at the receiver, it takes how much time? Latency = TransmitTime + Propagation ...
... Consider a 100-Mbps optical link with a length of 10km. Assume the link transmits packets of 10000 bits. (The speed of light is 2x108 m/sec). From the start of a packet transmission until the last bit of the packet arrives at the receiver, it takes how much time? Latency = TransmitTime + Propagation ...
foundationsChap1
... Physical Layer transmits bits Data link layer collects bits into frames ◦ NIC and drivers typically implement this ...
... Physical Layer transmits bits Data link layer collects bits into frames ◦ NIC and drivers typically implement this ...
1-up PPT
... finds a path to the destination and forwards packets along that path • Difference between routing and forwarding • Routing is finding the path • Forwarding is the action of sending the packet to the next-hop toward its destination ...
... finds a path to the destination and forwards packets along that path • Difference between routing and forwarding • Routing is finding the path • Forwarding is the action of sending the packet to the next-hop toward its destination ...
Quality of Service
... Routing decision is made separately for each packet, possibly depending on the traffic at the moment the packet is sent. There is no guarantee that the packets arrive at the destination in order. This model is not quite as simple as it looks. Some issues have to be considered such as: The multiproto ...
... Routing decision is made separately for each packet, possibly depending on the traffic at the moment the packet is sent. There is no guarantee that the packets arrive at the destination in order. This model is not quite as simple as it looks. Some issues have to be considered such as: The multiproto ...
ReviewSheet Midterm2 Last modified January 7
... 10. In an ad hoc network, the stations can form a network without the need of access points. 11. In wireless LAN, a collision will always be heard by all stations in the network. 12. An autonomous system is a group of networks and routers under the authority of more than one administration bodies. 1 ...
... 10. In an ad hoc network, the stations can form a network without the need of access points. 11. In wireless LAN, a collision will always be heard by all stations in the network. 12. An autonomous system is a group of networks and routers under the authority of more than one administration bodies. 1 ...
ppt
... • Provides a huge impetus to the router industry to start working towards faster core routers. • It shows that it is possible to examine every packet header and make decisions fast enough for multi Gbps routers • It is unique in discussing the actual assembly level tricks to achieve the required thr ...
... • Provides a huge impetus to the router industry to start working towards faster core routers. • It shows that it is possible to examine every packet header and make decisions fast enough for multi Gbps routers • It is unique in discussing the actual assembly level tricks to achieve the required thr ...
Internet: A Fast Revision
... End-to-End Design: Based on the assumption that end-points can trust one another. To move the functionality away from the network, and, towards the edges of the system. Reduces the complexity of the network. Reduces the cost of future upgrades New applications can be added without modify ...
... End-to-End Design: Based on the assumption that end-points can trust one another. To move the functionality away from the network, and, towards the edges of the system. Reduces the complexity of the network. Reduces the cost of future upgrades New applications can be added without modify ...
Document
... routes. Dynamic routes can adjust automatically when routes fail, rewriting the routing table as necessary. ...
... routes. Dynamic routes can adjust automatically when routes fail, rewriting the routing table as necessary. ...
IPFIX
... • We should have a tool to generate a IPFIX trace from packet trace and use both of them … • … so that anyone can compare both packet and IPFIX algorithms • The conversion should be easy and flexible • It should work for many operating systems • We have TracesPlay (http://tracesplay.sourceforge.net/ ...
... • We should have a tool to generate a IPFIX trace from packet trace and use both of them … • … so that anyone can compare both packet and IPFIX algorithms • The conversion should be easy and flexible • It should work for many operating systems • We have TracesPlay (http://tracesplay.sourceforge.net/ ...
Chapter 13
... – Very HEAVY overhead on the network as a whole – A limited number of hops prevents extremely large networks (like the Internet) ...
... – Very HEAVY overhead on the network as a whole – A limited number of hops prevents extremely large networks (like the Internet) ...
投影片 1
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
Network Layer
... Facilitate communicate between autonomous domains Able to move packets between any host on the internetwork ...
... Facilitate communicate between autonomous domains Able to move packets between any host on the internetwork ...
A study of IP Over WDM
... traditional internets ? • Correlations between MPLS label value and optical ...
... traditional internets ? • Correlations between MPLS label value and optical ...
lecture
... link from A to E fails A advertises distance of infinity to E B and C advertise a distance of 2 to E B decides it can reach E in 3 hops; advertises this to A A decides it can read E in 4 hops; advertises this to C C decides that it can reach E in 5 hops… ...
... link from A to E fails A advertises distance of infinity to E B and C advertise a distance of 2 to E B decides it can reach E in 3 hops; advertises this to A A decides it can read E in 4 hops; advertises this to C C decides that it can reach E in 5 hops… ...
PPT
... (x) Is the cost to get to 6. The metric (cost per link) here is 1. Simple algorithm: 6 broadcasts “I’m alive” to neighbors. Neighbors send “I can get to 6 in 1 hop”, etc. ...
... (x) Is the cost to get to 6. The metric (cost per link) here is 1. Simple algorithm: 6 broadcasts “I’m alive” to neighbors. Neighbors send “I can get to 6 in 1 hop”, etc. ...