Internet Benchmarks ! Options

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cosmote internet on the go

HSPA

Achilleion-Magnisia

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[NickTheGreek]

áðëÜ ç Vivodi ÷ñçóéìïðïéåß caching mechanisms ðÜíù óôï Å3/Ô3

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Êáé ãéá áõôïýò ðïõ äåí ãíùñßæïõí:

ÅíåñãÜ äßêôõá
Áîéüðéóôç ðïëëáðëÞ ìåôÜäïóç
Active networks Reliable multicast


Ðåñßëçøç:

ÅíåñãÜ ëÝìå ôá äßêôõá ôá ïðïßá åðåîåñãÜæïíôáé êáé ôá ðåñéå÷üìåíá (êáé ü÷é ìüíï ôçí åðéêåöáëßäá) ôùí ðáêÝôùí ðïõ ìåôÜãïõí. Åðéêåíôñùíüìáóôå óôá åíåñãÜ äßêôõá åíèõëÜêùóçò, üðïõ ï ðñïò åêôÝëåóç êþäéêáò óõìðåñéëáìâÜíåôáé óôá ìåôáãþìåíá ðáêÝôá, óå áíôéäéáóôïëÞ ìå ôïõò ðñïãñáììáôéæüìåíïõò ìåôáãùãåßò. ÐáñïõóéÜæåôáé áíáëõôéêÜ ôï Active Networks Encapsulation Protocol (ANEP). ÐáñïõóéÜæïíôáé äéêôõáêÝò åöáñìïãÝò óôéò ïðïßåò ôá åíåñãÜ äßêôõá âåëôéþíïõí ôçí áðüäïóç ôçò åöáñìïãÞò êáé ôáõôü÷ñïíá ìåéþíïõí ôéò áðáéôÞóåéò óå äéêôõáêïýò ðüñïõò. Áêïëïýèùò åóôéÜæïõìå óôçí \"ÅíåñãÞ Áîéüðéóôç ÐïëëáðëÞ ÌåôÜäïóç\", Ýíá ðñùôüêïëëï áîéüðéóôçò ðïëëáðëÞò ìåôÜäïóçò ôï ïðïßï ÷ñçóéìïðïéåß ôçí åíåñãÞ ìåôáãùãÞ ãéá íá äéá÷åéñéóôåß ôçí áíÜêôçóç áðùëåéþí ðáêÝôùí åíôüò ôïõ äéêôýïõ (êáôáóôïëÞ NACK, ëáíèÜíïõóá ìíÞìç ãéá ðáêÝôá äéüñèùóçò, ðïëëáðëÞ ìåôÜäïóç ðåñéïñéóìÝíçò åìâÜëåéáò). ÐáñÝ÷ïíôáé áðïôåëÝóìáôá ðñïóïìïéþóåùí ðïõ õðïóôçñßæïõí ôçí èÝóç üôé áêüìá êáé ìå ìéêñü ðïóïóôü åíåñãþí êüìâùí, Ýíá åíåñãü äßêôõï ìðïñåß íá âåëôéþóåé ïõóéáóôéêÜ ôéò åðéäüóåéò ôçò åöáñìïãÞò êáé íá ìåéþóåé ôáõôü÷ñïíá ôçí ÷ñÞóç åýñïõò æþíçò. Êëåßíïíôáò, êÜíïõìå êÜðïéá ôåëéêÜ ó÷üëéá êáé åîÜãïõìå óõìðåñÜóìáôá ó÷åôéêÜ ìå ôï õøçëü êüóôïò åãêáôÜóôáóçò êáé óõíôÞñçóçò ôùí åíåñãþí äßêôõùí, êáé ðùò áõôü áíôéäéáóôÝëëåôáé ìå ôá ðëåïíåêôÞìáôá ôùí ôåëåõôáßùí óå ó÷Ýóç ìå ôéò åðéäüóåéò ôùí åöáñìïãþí êáé ôçí ÷ñÞóç ôùí äéêôõáêþí ðüñùí.


Ðåñßëçøç (ÌåôÜöñáóç) :

Active Networks are networks consisting (at least partially) of active nodes. A node is active if it doesn¢t only processes a packet¢s header in order to route it, but is also able to evaluate and process the packet¢s payload. There are two kinds of active networks, depending on whether they are based on programmable switches or on capsules which bundle code together with the data. This dissertation focuses on the latter. The operational model of an active network of this kind comprises code execution models, network node management models and resource allocation policies. The Active Networks Encapsulation Protocol (ANEP) sets the mechanism for defining the platform required to evaluate the code that is encapsulated in the packet, as well the nodes¢ behaviour when they do not support the required platform (drop the packet or simply forward it). This mechanism provides active networks with the flexibility to operate even when a very small percentage of the network¢s node is actually active. There are various situations and where active networks can make better use of network resources. There are, for example, applications where different users might make similar, but different, requests resulting in unnecessary bandwith consumption when supported by conventional caching mechanisms. Active networks can provide smart caches that will dynamically synthesize pages from data cached by previous requests. Another situation where active networks can improve network performance is network applications like tele-conference, that depend heavily on new network services. Active networks allow for the faster deployment of new network services that enhance network speed and security and rationalise bandwidth usage through, for example multicast. Furthermore, active networks can support specialised applications, like for example on-line auctions, with custom-made network services. It is important to note that when measuring network performance, one should focus onto the network application¢s performance, rather than network per-packet metrics like throughput and latency. In other words, intranetwork processing might increase both packet size and latency, but will improve the application¢s end-to-end performance and reduce total network load. The protocols for three innovative network applications are presented: active reliable multicast, auctions over the network and remote sensor merging. For each of these we present network services that can be easily implemented and deployed in active networks to improve application performance. Finally, a more detailed analysis (by means of simulation) of an active reliable multicast protocol is presented. Active networks achieve two ends: on the one hand they push the idea of a network proxy to its logical end by effectively turning all network elements into smart proxies that provide caching, filtering, NACK suppression and other services. On the other hand they carry out part of the computation inside the network, bringing it closer to the data sources. When the computation is, for example, data merging this is beneficial to both the application and the network resources. This, however, can only be achieved at a cost. First of all in hardware, since network elements have to be upgraded from simple routers to full-blown computers capable of supporting Java and scripting languages. But also in latency, since packets have to undergo much more complex processing along the way that simple routing. In the applications presented here the costs associated with active transport are counter-balanced by the advantages the latter has to offer to the application as well as to the network. The bet that active networks have to win in order to get widely accepted, is to have enough active application protocols developed that their installation and maintenance cost can be justified.

Source : http://nemertes.lis.upatras.gr/dspace/handle/123456789/139

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Velica, Messinia, southern Peloponnese, Greece

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ADSL Router



7.2 Mbps HSDPA - Cosmote







HUAWEI HSPA / UMTS - Cosmote

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Cosmote 3G - using ZTE USB modem MF662

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retesting ...

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Cosmote 3G-Magnisia-Achilleion

USING ZTE usb modem NMEA

[nickpar]

Cosmote 3G - using ZTE USB modem MF662

Onboard Elyros - ANEK Lines - docked on Piraeus

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Aldemar Hotel, Olympian Village

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Velica village, Messinia, Southern Peloponisos, Greece

using ZTE USB modem attached to D-LINK WBR-6800 ( sharing 3G over WiFi )

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ÊáëÞ ôá÷ýôçôá âëÝðù åêåß!!!!

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ºóáñç Ìåãáëüðïëçò Áñêáäßáò

ZTE USB modem 7.8mbps

äïêéìÜæù internet throughput óôïí îåíþíá ðïõ èá ìåßíù óôç âÜöôéóç 28/8

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Ping -->>>> 0!!!