
Network Layer
... . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. - remember (in NAT translation table) every (source IP address, port #) to (NAT IP address, new port #) translation pair - incoming datagrams: replace (NAT IP address, new port #) in dest fields of ever ...
... . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. - remember (in NAT translation table) every (source IP address, port #) to (NAT IP address, new port #) translation pair - incoming datagrams: replace (NAT IP address, new port #) in dest fields of ever ...
3214W17Ch4
... 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 ...
Cisco PIX 515E Security Appliance
... take advantage of the many benefits that converged data, voice, and video networks deliver. By combining VPN with the rich stateful inspection firewall services that Cisco ...
... take advantage of the many benefits that converged data, voice, and video networks deliver. By combining VPN with the rich stateful inspection firewall services that Cisco ...
A, I, H, K, and the new routing table
... The packet buffer for router B in previous slide Routing table calculations are done using Dijkestra’s algorithm Computer Networks, Fifth Edition by Andrew Tanenbaum and David Wetherall, © Pearson Education-Prentice Hall, 2011 ...
... The packet buffer for router B in previous slide Routing table calculations are done using Dijkestra’s algorithm Computer Networks, Fifth Edition by Andrew Tanenbaum and David Wetherall, © Pearson Education-Prentice Hall, 2011 ...
Part2.3Internetworki..
... Transport from an application on one computer to application on another ...
... Transport from an application on one computer to application on another ...
Notes
... seldom used on low bit-error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
... seldom used on low bit-error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
5 – Network Layer
... NAT (Network Address Translation) box maps one external IP address to many internal IP addresses • Uses TCP/UDP port to tell connections apart • Violates layering; very common in homes, etc. ...
... NAT (Network Address Translation) box maps one external IP address to many internal IP addresses • Uses TCP/UDP port to tell connections apart • Violates layering; very common in homes, etc. ...
Towards truly open and commoditized Sdn in openstack
... OK, Questions We Got! Q: What is a truly scalable SDN solution now? ...
... OK, Questions We Got! Q: What is a truly scalable SDN solution now? ...
Module 2 - OoCities
... at MIT in 1957.(Answer: John McCarthy). Q15: ARPA’s networking project Managed by ______________ from MIT. (Answer: Lawrence Robert). Q16: Nodes with large time-sharing computers at the connected sites are called _____________. (Answer: hosts). Q17: What’s the different between Circuit-switching vs. ...
... at MIT in 1957.(Answer: John McCarthy). Q15: ARPA’s networking project Managed by ______________ from MIT. (Answer: Lawrence Robert). Q16: Nodes with large time-sharing computers at the connected sites are called _____________. (Answer: hosts). Q17: What’s the different between Circuit-switching vs. ...
TKN Performance Evaluation of a QoS-Aware Handover Mechanism S. Sroka and H. Karl
... special-purpose hard- and software in their fixed communication network. With growing cost pressure, a tendency to replace custom-made systems with standard, off-the-shelf equipment is attractive. This tendency resulted in the concept of “all IP” mobile communication systems: IP protocols and hardwa ...
... special-purpose hard- and software in their fixed communication network. With growing cost pressure, a tendency to replace custom-made systems with standard, off-the-shelf equipment is attractive. This tendency resulted in the concept of “all IP” mobile communication systems: IP protocols and hardwa ...
Network Primer - CS 4474
... DISADVANTAGE FOR SOME VES When a socket is receiving data on a UDP port, it will receive packets sent to it by any host, whether it is participating in the application or not This possibility can represent a security problem for some applications that do not robustly distinguish between expected and ...
... DISADVANTAGE FOR SOME VES When a socket is receiving data on a UDP port, it will receive packets sent to it by any host, whether it is participating in the application or not This possibility can represent a security problem for some applications that do not robustly distinguish between expected and ...
The TCP Segment Header - CIS @ Temple University
... Sender stop sending. Receiver send segment with new window size. This segment is lost. Sender will keep waiting forever. After getting a window of 0 the sender uses a persistent timer periodically to probe the receiver to send window advertisements. Once it gets a non-zero window the timer is stoppe ...
... Sender stop sending. Receiver send segment with new window size. This segment is lost. Sender will keep waiting forever. After getting a window of 0 the sender uses a persistent timer periodically to probe the receiver to send window advertisements. Once it gets a non-zero window the timer is stoppe ...
Service-Built Edge & CPE Initiative: M7i & M10i Overview
... A private Ethernet network constructed over a ‘shared’ infrastructure ...
... A private Ethernet network constructed over a ‘shared’ infrastructure ...
Performance Analysis of RIP and OSPF in Network Using
... meanings but according to the network convergence, means that in an internet work all routers have same topological information about their network. When routers start convergence they collect topological information for other routers through implemented routing protocol. One important thing is that ...
... meanings but according to the network convergence, means that in an internet work all routers have same topological information about their network. When routers start convergence they collect topological information for other routers through implemented routing protocol. One important thing is that ...
pptx - Cornell Computer Science
... • Next Monday, Review chapter 4 from the book, Network Layer – We will also briefly discuss data center topologies ...
... • Next Monday, Review chapter 4 from the book, Network Layer – We will also briefly discuss data center topologies ...
HAT: Heterogeneous Adaptive Throttling for On-Chip Networks
... the network load (the fraction of occupied links or buffers) becomes too high. When this congestion occurs, packets contend for shared network resources frequently, and this can reduce overall system throughput. Congestion in onand off-chip interconnects is a well-known problem that has been describ ...
... the network load (the fraction of occupied links or buffers) becomes too high. When this congestion occurs, packets contend for shared network resources frequently, and this can reduce overall system throughput. Congestion in onand off-chip interconnects is a well-known problem that has been describ ...
"Resilient Overlay Networks"
... fault-tolerance needs, do not often require such a large address block, and cannot effectively multi-home. One alternative may be “provider-based addressing,” where an organization gets addresses from multiple providers, but this requires handling two distinct sets of addresses on its hosts. It is u ...
... fault-tolerance needs, do not often require such a large address block, and cannot effectively multi-home. One alternative may be “provider-based addressing,” where an organization gets addresses from multiple providers, but this requires handling two distinct sets of addresses on its hosts. It is u ...
第6章作业应用
... There are a lot of players to announce to provide SIP solution, e.g., capital telecom company. It is reasonable to say that the largest telecom companies provide the SIP solutions in two years, such as Zhongxing, Huawei . (this was really true when the PPT was written in 1999) Today, there are more ...
... There are a lot of players to announce to provide SIP solution, e.g., capital telecom company. It is reasonable to say that the largest telecom companies provide the SIP solutions in two years, such as Zhongxing, Huawei . (this was really true when the PPT was written in 1999) Today, there are more ...
switch
... multiple access protocol distributed algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! • no out-of-band channel for coordination! ...
... multiple access protocol distributed algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! • no out-of-band channel for coordination! ...
IP address
... This range contains 65536 addresses because the third and the fourth bytes can have values of 0 to 255 and 256*256 is 65536. The first address,181.74.0.0 is a reserved address and represents the entire network( organization); the last address 181.74.255.255 is also a reserved address and represe ...
... This range contains 65536 addresses because the third and the fourth bytes can have values of 0 to 255 and 256*256 is 65536. The first address,181.74.0.0 is a reserved address and represents the entire network( organization); the last address 181.74.255.255 is also a reserved address and represe ...
pdf
... approach: sender increases transmission rate (window size), probing for usable bandwidth, until loss occurs additive increase: increase cwnd by 1 MSS every RTT until loss detected multiplicative decrease: cut cwnd in half after loss ...
... approach: sender increases transmission rate (window size), probing for usable bandwidth, until loss occurs additive increase: increase cwnd by 1 MSS every RTT until loss detected multiplicative decrease: cut cwnd in half after loss ...
performance-definitions
... Created by an application, handed over to the OS, passed to a network card (NIC), encoded, transmitted over a physical medium (copper, fibre, air), received by an intermediate device (switch, router), analyzed, retransmitted over another ...
... Created by an application, handed over to the OS, passed to a network card (NIC), encoded, transmitted over a physical medium (copper, fibre, air), received by an intermediate device (switch, router), analyzed, retransmitted over another ...
Toward an IPv6 world in mobile networks – mechanisms
... bugs have been removed. The native dual-stack model is shown in Figure 1. Here the entire network – from the UE to the servers running the services – supports both IPv4 and IPv6. Services can be accessed using either protocol, depending on which one is supported by the particular service. If NAT44 i ...
... bugs have been removed. The native dual-stack model is shown in Figure 1. Here the entire network – from the UE to the servers running the services – supports both IPv4 and IPv6. Services can be accessed using either protocol, depending on which one is supported by the particular service. If NAT44 i ...