VoIP Standards for CDMA
... • 3GPP requires GGSN and P-CSCF to be located in the same network. • 3GPP2 allows PDSN and P-CSCF to be located in different networks (e.g., PDSN in visiting network and P-CSCF in home network.) • 3GPP2 packet data service and Mobile IP, vs 3GPP GPRS packet services • Smart cards optional in 3GPP2 ...
... • 3GPP requires GGSN and P-CSCF to be located in the same network. • 3GPP2 allows PDSN and P-CSCF to be located in different networks (e.g., PDSN in visiting network and P-CSCF in home network.) • 3GPP2 packet data service and Mobile IP, vs 3GPP GPRS packet services • Smart cards optional in 3GPP2 ...
Traffic duplication through segmentable disjoint paths
... protection, data is sent over both paths and the destination can easily switch to the secondary path if the primary fails [6]. In TCP/IP networks, such techniques are rarely used. Most applications, including the latency sensitive applications mentioned above rely on acknowledgements and retransmiss ...
... protection, data is sent over both paths and the destination can easily switch to the secondary path if the primary fails [6]. In TCP/IP networks, such techniques are rarely used. Most applications, including the latency sensitive applications mentioned above rely on acknowledgements and retransmiss ...
Slide 1
... Broadcast networks and packet-switched networks From external view, both networks provides transfer of information between users, not too much different But from internal view, very different: A broadcast network (such as LANs) is small, addressing is simple, frame transferred in one hop so no ...
... Broadcast networks and packet-switched networks From external view, both networks provides transfer of information between users, not too much different But from internal view, very different: A broadcast network (such as LANs) is small, addressing is simple, frame transferred in one hop so no ...
Network Loss Inference Using Unicast End-to-End Measurement
... grows linearly with the number of nodes in the network under study. A key strength of our methodology is that it can deliver not only point estimates and confidence intervals, but also probability distributions for network parameters of interest. This provides the complete characterization of the ac ...
... grows linearly with the number of nodes in the network under study. A key strength of our methodology is that it can deliver not only point estimates and confidence intervals, but also probability distributions for network parameters of interest. This provides the complete characterization of the ac ...
slides - network systems lab @ sfu
... A creates link-layer frame with R's MAC address as dest, frame contains A-to-B IP datagram A’s adapter sends frame R’s adapter receives frame R removes IP datagram from Ethernet frame, sees it is destined to B R uses ARP to get B’s MAC address R creates frame containing A-to-B IP datagra ...
... A creates link-layer frame with R's MAC address as dest, frame contains A-to-B IP datagram A’s adapter sends frame R’s adapter receives frame R removes IP datagram from Ethernet frame, sees it is destined to B R uses ARP to get B’s MAC address R creates frame containing A-to-B IP datagra ...
ppt
... • Use UDP, and Server sends at a rate (Compression and Transmission) appropriate for client; to reduce jitter, Player buffers initially for 2-5 seconds, then starts display • Use TCP, and sender sends at maximum possible rate under TCP; retransmit when error is encountered; Player uses a much large ...
... • Use UDP, and Server sends at a rate (Compression and Transmission) appropriate for client; to reduce jitter, Player buffers initially for 2-5 seconds, then starts display • Use TCP, and sender sends at maximum possible rate under TCP; retransmit when error is encountered; Player uses a much large ...
The Internet Protocols
... Host portion of address partitioned into subnet number and host number Local routers route within subnetted network Subnet mask indicates which bits are subnet number and which are host number ...
... Host portion of address partitioned into subnet number and host number Local routers route within subnetted network Subnet mask indicates which bits are subnet number and which are host number ...
Document
... TCP pseudoheader: added to the beginning of the segment When performing the checksum computation. The Pseudoheader is created by the source and destination hosts during the checksum computation and is not transmitted. This mechanism ensures the receiver that the segment has Indeed reached the correc ...
... TCP pseudoheader: added to the beginning of the segment When performing the checksum computation. The Pseudoheader is created by the source and destination hosts during the checksum computation and is not transmitted. This mechanism ensures the receiver that the segment has Indeed reached the correc ...
Part I: Introduction
... queue, wait for link use store and forward: packets move one hop at a time transmit over link wait turn at next link Introduction ...
... queue, wait for link use store and forward: packets move one hop at a time transmit over link wait turn at next link Introduction ...
GNET-1の概要
... Network service for Grid To realize such virtual infrastructure for Grid, resource management is one of the key issues. Grid middleware should allocate appropriate resources, including network resources, according to user’s request. Network resource manager should provide resource management servic ...
... Network service for Grid To realize such virtual infrastructure for Grid, resource management is one of the key issues. Grid middleware should allocate appropriate resources, including network resources, according to user’s request. Network resource manager should provide resource management servic ...
RIP & OSPF
... P: Set of nodes for which the best path cost (and nexthop from root) have been found. T: (ID, path-cost, next-hop): Set of candidate nodes at a one-hop distance from some node in P. Note: there is only one entry per node. In the interim, some nodes may not lie in P or T. R=Routing table: ( ...
... P: Set of nodes for which the best path cost (and nexthop from root) have been found. T: (ID, path-cost, next-hop): Set of candidate nodes at a one-hop distance from some node in P. Note: there is only one entry per node. In the interim, some nodes may not lie in P or T. R=Routing table: ( ...
software defined networking: a path to programmable
... • Protocol that enables communication between an OpenFlow controller and an OpenFlow router ...
... • Protocol that enables communication between an OpenFlow controller and an OpenFlow router ...
Lect10
... Protocol Headers • The software at each layer communicates with the corresponding layer through information stored in headers. • Each layer adds its header to the front of the message from the next higher layer. • Headers are nested at the front of the message as the message traverses the network. ...
... Protocol Headers • The software at each layer communicates with the corresponding layer through information stored in headers. • Each layer adds its header to the front of the message from the next higher layer. • Headers are nested at the front of the message as the message traverses the network. ...
On the Reliability and Additional Overhead of Reliable On
... agent receives both control packets and data packets. The link layer simulates the data link protocols. It also sets the MAC destination address in the MAC header of the packet. This function is implemented for two different issues: finding the next-hop-node’s IP address and converting IP address in ...
... agent receives both control packets and data packets. The link layer simulates the data link protocols. It also sets the MAC destination address in the MAC header of the packet. This function is implemented for two different issues: finding the next-hop-node’s IP address and converting IP address in ...
Unplug The Routers!
... Data-Plane Cloning Clone the data plane by repopulation Copying the data plane states is wasteful, and could be hard Instead, repopulate the new data plane using the migrated control plane The old data plane continues working during migration ...
... Data-Plane Cloning Clone the data plane by repopulation Copying the data plane states is wasteful, and could be hard Instead, repopulate the new data plane using the migrated control plane The old data plane continues working during migration ...
Presentation
... • Multiple interfaces (possible multiple distinct multiple paths) • Current specification: one primary path, others secondary paths to improve reachibility and ...
... • Multiple interfaces (possible multiple distinct multiple paths) • Current specification: one primary path, others secondary paths to improve reachibility and ...
Experimental Review of IPSec Features to Enhance IP Security By
... This is necessary because each connection might be using different rules and different encryption algorithms. Remember IPSec supports multiple encryption algorithms, so we must keep track of which connection is using which encryption algorithm and hash types. There are two main modes which IPSec use ...
... This is necessary because each connection might be using different rules and different encryption algorithms. Remember IPSec supports multiple encryption algorithms, so we must keep track of which connection is using which encryption algorithm and hash types. There are two main modes which IPSec use ...
draft-li-idr-cc-bgp-arch-00
... MPLS Global Label should be allocated in a central point to guarantee all distributed network nodes can understand meaning of a specific global label in same. The new BGP-based Central Controlled framework is particularly suitable to allocate MPLS Global Label for services deployed on the network ed ...
... MPLS Global Label should be allocated in a central point to guarantee all distributed network nodes can understand meaning of a specific global label in same. The new BGP-based Central Controlled framework is particularly suitable to allocate MPLS Global Label for services deployed on the network ed ...
Lecture 1: Course Introduction and Overview
... Routing • Routing: the process of forwarding packets hop-by-hop through routers to reach their destination – Need more than just a destination address! » Need a path ...
... Routing • Routing: the process of forwarding packets hop-by-hop through routers to reach their destination – Need more than just a destination address! » Need a path ...
Information Survivability for Mobile Wireless Systems
... to the next, so they must be transmitted in their entirety with each packet. For example, without encryption a typical 40-byte header can be compressed to 2 bytes. With encryption via RTP, 12 bytes of the 40byte header are encrypted so the resulting compressed header is now 14 bytes. Figure 3 shows ...
... to the next, so they must be transmitted in their entirety with each packet. For example, without encryption a typical 40-byte header can be compressed to 2 bytes. With encryption via RTP, 12 bytes of the 40byte header are encrypted so the resulting compressed header is now 14 bytes. Figure 3 shows ...
