DEPARTMENT OF ECE 2-MARK QUESTIONS AND ANSWERS S
... The same Virtual circuit is provided between two users on a continuous basis. The circuit is dedicated to the specific user 19. What do you mean by DSL? It is a new technology that uses the existing telecommunication network to accomplish high speed delivery of data, voice & video etc. 20. What is t ...
... The same Virtual circuit is provided between two users on a continuous basis. The circuit is dedicated to the specific user 19. What do you mean by DSL? It is a new technology that uses the existing telecommunication network to accomplish high speed delivery of data, voice & video etc. 20. What is t ...
Guide to Firewalls and Network Security with Intrusion Detection and
... Time to live (TTL) Protocol Header checksum Source address Destination address Options Data ...
... Time to live (TTL) Protocol Header checksum Source address Destination address Options Data ...
Implementation of Multi-layer techniques using FEDERICA, PASITO
... There are different PCE configurations for multi-layer networks defined in [18]. Basically, there are centralized and distributed models, where the routing computation is done in a centralized server or in multiple PCEs in the network. Moreover, there are single layer cooperating PCEs, where each PC ...
... There are different PCE configurations for multi-layer networks defined in [18]. Basically, there are centralized and distributed models, where the routing computation is done in a centralized server or in multiple PCEs in the network. Moreover, there are single layer cooperating PCEs, where each PC ...
lesson5
... The UDP Checksum field is computed using an algorithm based upon ones-complement addition of the 16-bit words in the entire UDP segment (its data and its header), along with an extra structure known as the UDP Pseudo-Header ...
... The UDP Checksum field is computed using an algorithm based upon ones-complement addition of the 16-bit words in the entire UDP segment (its data and its header), along with an extra structure known as the UDP Pseudo-Header ...
![[slides] Sensor network applications](http://s1.studyres.com/store/data/012511086_1-424a16e4574a3171e83c172220490b5b-300x300.png)
[slides] Sensor network applications
... Deliver queries to events in large networks with less average cumulative hops and lower energy requirements than simple flooding. The algorithm can handle node failure gracefully, degrading its delivery rate linearly with the number of failed nodes. ...
... Deliver queries to events in large networks with less average cumulative hops and lower energy requirements than simple flooding. The algorithm can handle node failure gracefully, degrading its delivery rate linearly with the number of failed nodes. ...
“To Filter or to Authorize: Network
... AS before the packet enters the network. Pair-wise keys between two AS are exchanged during the BGP announcement. ...
... AS before the packet enters the network. Pair-wise keys between two AS are exchanged during the BGP announcement. ...
Backbone Networks, MAN, WAN
... To handle circuit congestion, ATM prioritizes transmissions based on Quality of Service ...
... To handle circuit congestion, ATM prioritizes transmissions based on Quality of Service ...
Mobile Communications
... – the TCP connection is split by a Web cache in the satellite network – need not set up TCP connections all the way to servers outside if the required contents are available from the cache – reduces connection latency and bandwidth consumption ...
... – the TCP connection is split by a Web cache in the satellite network – need not set up TCP connections all the way to servers outside if the required contents are available from the cache – reduces connection latency and bandwidth consumption ...
routing - ece.virginia.edu
... – Topology information: Switch IV has links to hosts IV-A & IV-B (in addition to links to other switches) – Reachability information: Switch IV can reach hosts III-B and III-C, host I-A • addresses that are more than one hop away • implicit: reachability to directly connected hosts (part of topology ...
... – Topology information: Switch IV has links to hosts IV-A & IV-B (in addition to links to other switches) – Reachability information: Switch IV can reach hosts III-B and III-C, host I-A • addresses that are more than one hop away • implicit: reachability to directly connected hosts (part of topology ...
ECE544 - WINLAB
... Routing Problem: How to find the lowest cost path between two nodes – the process to build the routing and forwarding tables in each router Network as a Graph – Each edge has a cost – Path cost = the sum of the costs of all the edges that make up the path. Factors – dynamic: link, node, topology, li ...
... Routing Problem: How to find the lowest cost path between two nodes – the process to build the routing and forwarding tables in each router Network as a Graph – Each edge has a cost – Path cost = the sum of the costs of all the edges that make up the path. Factors – dynamic: link, node, topology, li ...
PPT Version
... Needs hardware support to go get best performance Some modes do not scale well Needs a profile to support an IETF environment. ...
... Needs hardware support to go get best performance Some modes do not scale well Needs a profile to support an IETF environment. ...
PDF - This Chapter
... clear throughout the alarm integration period, which is typically 2.5 seconds. An LOS defect occurs when the OC-3 port receives all zeros for 20 microseconds (+.3 ms). This occurrence begins the alarm integration period. If this period elapses without the detection of two consecutive frames in which ...
... clear throughout the alarm integration period, which is typically 2.5 seconds. An LOS defect occurs when the OC-3 port receives all zeros for 20 microseconds (+.3 ms). This occurrence begins the alarm integration period. If this period elapses without the detection of two consecutive frames in which ...
topological database - YSU Computer Science & Information Systems
... The DR could represent a single point of failure, so a second router is elected as the BDR to provide fault tolerance. Thus, the BDR must also become adjacent to all routers on the network and must serve as a second focal point for LSAs. But, unlike the DR, the BDR is not responsible for updating th ...
... The DR could represent a single point of failure, so a second router is elected as the BDR to provide fault tolerance. Thus, the BDR must also become adjacent to all routers on the network and must serve as a second focal point for LSAs. But, unlike the DR, the BDR is not responsible for updating th ...
UDP—User Datagram Protocol - Department of Computer and
... • Payload length: length of data excluding header, up to 65535 B • Next header: type of extension header that follows basic header • Hop limit: # hops packet can travel before being dropped by a router ...
... • Payload length: length of data excluding header, up to 65535 B • Next header: type of extension header that follows basic header • Hop limit: # hops packet can travel before being dropped by a router ...
CCNA Cheat Sheet Internetworking Essentials
... 10Base5 (Thicknet) – Original Ethernet cabling media. Up to 500m per segment. Highly resistant to EMI. Uses physical and logical bus topology with clients connecting using vampire clasps. Data transmission up to 10Mbps. Now obsolete. 10Base2 (Thinnet) – Replaced Thicknet because it was lighter and t ...
... 10Base5 (Thicknet) – Original Ethernet cabling media. Up to 500m per segment. Highly resistant to EMI. Uses physical and logical bus topology with clients connecting using vampire clasps. Data transmission up to 10Mbps. Now obsolete. 10Base2 (Thinnet) – Replaced Thicknet because it was lighter and t ...
The Network Layer
... choosing routes. Initially, all the lines were 56 kbps, so line bandwidth was not an issue, but after some lines had been upgraded to 230 kbps and others to 1.544 Mbps, not taking bandwidth into account was a major problem. Of course, it would have been possible to change the delay metric to factor ...
... choosing routes. Initially, all the lines were 56 kbps, so line bandwidth was not an issue, but after some lines had been upgraded to 230 kbps and others to 1.544 Mbps, not taking bandwidth into account was a major problem. Of course, it would have been possible to change the delay metric to factor ...
DCE
... • Faster Routers. Once a connection is established each router can reference the connection via a small number. • It is better to provide uniform service to a few than to degrade while handling everyone. Netprog: Routing and the Network Layer ...
... • Faster Routers. Once a connection is established each router can reference the connection via a small number. • It is better to provide uniform service to a few than to degrade while handling everyone. Netprog: Routing and the Network Layer ...
Sigurnost bezicnih racunalnih mreza
... if all of the data is flowing one way, acknowledgment packets and control packets must flow the other way. We want to accomplish that only internal host can make calls to someone’s port 25. We can do this by paying attention to the direction of the packet, and by looking at some of the control field ...
... if all of the data is flowing one way, acknowledgment packets and control packets must flow the other way. We want to accomplish that only internal host can make calls to someone’s port 25. We can do this by paying attention to the direction of the packet, and by looking at some of the control field ...
ATM Terminology - University of Calgary
... ATM: Asynchronous Transfer Mode ATM is a statistical multiplexing technique for high speed integrated services networks, based on the fast packet switching of small fixed size (53 byte) packets called cells ATM is a connection-oriented low-layer networking concept ...
... ATM: Asynchronous Transfer Mode ATM is a statistical multiplexing technique for high speed integrated services networks, based on the fast packet switching of small fixed size (53 byte) packets called cells ATM is a connection-oriented low-layer networking concept ...
SimpleWan - Intro to vMPLS
... all available traffic routes in real-time. Traffic is encrypted and directed across an optimized route as determined by current conditions. Typical networks rely on the ISP’s Border Gateway Protocol (BGP) to route traffic, which means there is no control over how and where the data goes. vMPLS howev ...
... all available traffic routes in real-time. Traffic is encrypted and directed across an optimized route as determined by current conditions. Typical networks rely on the ISP’s Border Gateway Protocol (BGP) to route traffic, which means there is no control over how and where the data goes. vMPLS howev ...
RFITS - Tolerant Systems
... infrastructure is difficult for encrypted VPN traffic Hard to distinguish between spoofed and real traffic Person-in-the-loop may be needed for pushback response, ...
... infrastructure is difficult for encrypted VPN traffic Hard to distinguish between spoofed and real traffic Person-in-the-loop may be needed for pushback response, ...
Ans.Tutorial#2
... wrong station. In this case, however, the error detection mechanism, available in most data link protocols, will find the error and discard the frame. In both cases, the source will somehow be informed using one of the data link control mechanisms discussed in Chapter 11. 22- In Figure 2.22, assume ...
... wrong station. In this case, however, the error detection mechanism, available in most data link protocols, will find the error and discard the frame. In both cases, the source will somehow be informed using one of the data link control mechanisms discussed in Chapter 11. 22- In Figure 2.22, assume ...
