ppt
... • Problem: O(n2) probing required to detect path failures. Does not scale to large numbers of hosts. • Solution: ? – Probe some subset of paths (which ones) – Is this any different than a routing protocol, one layer higher? BGP ...
... • Problem: O(n2) probing required to detect path failures. Does not scale to large numbers of hosts. • Solution: ? – Probe some subset of paths (which ones) – Is this any different than a routing protocol, one layer higher? BGP ...
Chapter 1
... router is used for the Layer 3 function. This layer of the network design should not perform any packet manipulation. Packet manipulation, such as access list filtering, would slow down the switching of packets. Providing a core infrastructure with redundant alternate paths gives stability to ...
... router is used for the Layer 3 function. This layer of the network design should not perform any packet manipulation. Packet manipulation, such as access list filtering, would slow down the switching of packets. Providing a core infrastructure with redundant alternate paths gives stability to ...
iS3000 and SIP@Net server
... • iSNet is highly flexible: service levels and networking functions/applications are entirely configurable. This means that, as circumstances change, the customer’s network can be customised at any time to meet new, business-specific parameters. • iSNet’s high degree of flexibility enables the de ...
... • iSNet is highly flexible: service levels and networking functions/applications are entirely configurable. This means that, as circumstances change, the customer’s network can be customised at any time to meet new, business-specific parameters. • iSNet’s high degree of flexibility enables the de ...
SIP Trunking - Whitepaper
... Encryption. Most VoIP gateways compromise information security by transporting VoIP and data traffic over public networks without encryption. For organizations that handle sensitive data—notably banks and financial institutions, as well as military and certain government agencies—weak security has ...
... Encryption. Most VoIP gateways compromise information security by transporting VoIP and data traffic over public networks without encryption. For organizations that handle sensitive data—notably banks and financial institutions, as well as military and certain government agencies—weak security has ...
iNAT: End-to-end congestion management for the NGI
... – Reacting when congestion occurs – Probing for spare bandwidth when it doesn’t – The future isn’t about just TCP! ...
... – Reacting when congestion occurs – Probing for spare bandwidth when it doesn’t – The future isn’t about just TCP! ...
How many ways to 0wn the Internet? Towards Viable Worm
... – Attacker can remotely distinguish between a wormhole and another machine • Scan the net for all wormholes ...
... – Attacker can remotely distinguish between a wormhole and another machine • Scan the net for all wormholes ...
Chapter 1. Introduction to Data Communications
... • Throughput is the total number of information bits received per second, after taking into account the overhead bits and the need to retransmit packets containing errors. • In designing a protocol, there is a trade-off between large and small packets. • Small packets are less efficient, but are les ...
... • Throughput is the total number of information bits received per second, after taking into account the overhead bits and the need to retransmit packets containing errors. • In designing a protocol, there is a trade-off between large and small packets. • Small packets are less efficient, but are les ...
TCP/IP Networking Basics
... documents explain the standard protocols and procedures for the Internet. The documents are listed on the World Wide Web at http://www.ietf.org and can also be found on many other Web sites. ...
... documents explain the standard protocols and procedures for the Internet. The documents are listed on the World Wide Web at http://www.ietf.org and can also be found on many other Web sites. ...
Simulation was carried out with the help of ns 2.29
... AODV is an on-demand routing protocol. The AODV algorithm gives an easy way to get change in the link situation. For example if a link fails notifications are sent only to the affected nodes in the network. This notification cancels all the routes through this affected node. It builds unicast routes ...
... AODV is an on-demand routing protocol. The AODV algorithm gives an easy way to get change in the link situation. For example if a link fails notifications are sent only to the affected nodes in the network. This notification cancels all the routes through this affected node. It builds unicast routes ...
CH3-MPLS-Multiprotocol
... The exponential growth of the Internet over the past several years has placed a tremendous strain on the service provider networks. Not only has there been an increase in the number of users but there has been a multifold increase in connection speeds, backbone traffic and newer applications. Initia ...
... The exponential growth of the Internet over the past several years has placed a tremendous strain on the service provider networks. Not only has there been an increase in the number of users but there has been a multifold increase in connection speeds, backbone traffic and newer applications. Initia ...
ppt - Texas A&M University
... We are working in this new research field, whose essence lies in hiding and camouflaging the information about the network in order to make it anonymous and unobservable. ...
... We are working in this new research field, whose essence lies in hiding and camouflaging the information about the network in order to make it anonymous and unobservable. ...
Timing is everything: Accurate, Minimum-cost, Available Bandwidth Estimation in High-speed Wired Network
... estimation approaches. First, such approaches are intrusive since load is being added to the network. Current measurement methods require creating explicit probe packets that consume bandwidth and CPU cycles. Second, current approaches often do not have enough fidelity to accurately generate or time ...
... estimation approaches. First, such approaches are intrusive since load is being added to the network. Current measurement methods require creating explicit probe packets that consume bandwidth and CPU cycles. Second, current approaches often do not have enough fidelity to accurately generate or time ...
Document
... • Buffering required when datagrams arrive from fabric faster than the transmission rate • Scheduling discipline chooses among queued datagrams for transmission ...
... • Buffering required when datagrams arrive from fabric faster than the transmission rate • Scheduling discipline chooses among queued datagrams for transmission ...
待讨论问题 - IETF
... 1. it may be possible to leave some of the messages unprotected, but there might be security risks. Care should be taken in considering which messages are protection or not. 2. there may be bandwidth, delay and delay variation problems if all the messages (eg., [IEEE1588]) are to be protected. ...
... 1. it may be possible to leave some of the messages unprotected, but there might be security risks. Care should be taken in considering which messages are protection or not. 2. there may be bandwidth, delay and delay variation problems if all the messages (eg., [IEEE1588]) are to be protected. ...
Timing is Everything: Accurate, Minimum Overhead, Available Bandwidth Estimation in High-speed Wired Networks
... network. The key idea to such inferences: When the probing rate exceeds the available bandwidth, the observed packet characteristics undergo a significant change. The turning point where the change occurs is then the estimated available bandwidth. See Figure 9, for example, the turning point where q ...
... network. The key idea to such inferences: When the probing rate exceeds the available bandwidth, the observed packet characteristics undergo a significant change. The turning point where the change occurs is then the estimated available bandwidth. See Figure 9, for example, the turning point where q ...
LTE – CDMA Interworking
... Paging for cdma2000 1x Mobile Terminated Calls SMS Mobile originated calls are made directly on cdma2000 1x. 9 | Globecomm 2009 ...
... Paging for cdma2000 1x Mobile Terminated Calls SMS Mobile originated calls are made directly on cdma2000 1x. 9 | Globecomm 2009 ...
Internet - DePaul University
... database of URLs and IP addresses • The first operation performed by DNS is to query a local database for URL/IP address information – If local server does not recognize address, the server at next level will be queried – Eventually root server for URL/IP addresses will be queried » If root server h ...
... database of URLs and IP addresses • The first operation performed by DNS is to query a local database for URL/IP address information – If local server does not recognize address, the server at next level will be queried – Eventually root server for URL/IP addresses will be queried » If root server h ...
sophisticated methods
... each individual host seen in the network. When a network connection is detected each endpoint host becomes a candidate peer. A candidate peer that has additional P2P traffic becomes an active peer and is reported as active. Otherwise is becomes a non-peer after it has had no P2P traffic for a probat ...
... each individual host seen in the network. When a network connection is detected each endpoint host becomes a candidate peer. A candidate peer that has additional P2P traffic becomes an active peer and is reported as active. Otherwise is becomes a non-peer after it has had no P2P traffic for a probat ...
3rd Edition: Chapter 4 - Communications Systems Center
... used to setup, maintain teardown VC used in ATM, frame-relay, X.25 not used in today’s Internet ...
... used to setup, maintain teardown VC used in ATM, frame-relay, X.25 not used in today’s Internet ...
Thailand
... Trouble shooting and problem resolution Steps in resolving problems: – Check the remote centre (If the security policy of the remote centre allows it.) – Check if the link to the “outside” network is reachable. – Check the local network by trying to reach next gateway. – Check the local IP stack an ...
... Trouble shooting and problem resolution Steps in resolving problems: – Check the remote centre (If the security policy of the remote centre allows it.) – Check if the link to the “outside” network is reachable. – Check the local network by trying to reach next gateway. – Check the local IP stack an ...
The Audio over IP Instant Expert Guide
... subscribers request transmissions from this address. This unique address allows multicast routers to identify multicast requests from a group of codecs interested in a particular transmission and packets are replicated depending on demand. This can create large demands on network bandwidth if the mu ...
... subscribers request transmissions from this address. This unique address allows multicast routers to identify multicast requests from a group of codecs interested in a particular transmission and packets are replicated depending on demand. This can create large demands on network bandwidth if the mu ...
Elektronischer Hšrsaal
... Bits of the network would fade in and out, but usually only for TCP. You could ping. You could get a UDP packet through. Telnet and FTP would fail after a while. And it depended on where you were going (some hosts were just fine, others flaky) and time of day (I did a lot of work on weekends in the ...
... Bits of the network would fade in and out, but usually only for TCP. You could ping. You could get a UDP packet through. Telnet and FTP would fail after a while. And it depended on where you were going (some hosts were just fine, others flaky) and time of day (I did a lot of work on weekends in the ...
PowerPoint file - 정보통신연구실(INC LAB)
... and still meet the needs of its applications non-real-time application FTP, SMTP, TELNET, SNMP, HTTP ...
... and still meet the needs of its applications non-real-time application FTP, SMTP, TELNET, SNMP, HTTP ...
Security_Networking
... Fragmentation is a security issue! o Fragments may obscure real purpose of packet o Fragments can overlap when re-assembled o Must re-assemble packet to fully understand it o Lots of work for firewalls, for example ...
... Fragmentation is a security issue! o Fragments may obscure real purpose of packet o Fragments can overlap when re-assembled o Must re-assemble packet to fully understand it o Lots of work for firewalls, for example ...