Wide area networks and TCP protocol is the bottleneck of ERP application delivery
The impact of the limitations of WAN Application Delivery
Internet broadband is approaching its limit load. Led to this result, two equally important reasons are:
(1) Are subjected to a large extent for the transmission of video P2P traffic growth in the demand-driven explosions
(2) The bandwidth of the new functional construction of a lack of investment. The problem is that the bottleneck at the backbone of the Internet - the exchange of data traffic between the continents of the pipeline. (From the Deloitte report)
India's broadband service quality and there is still a big gap between the developed countries. According to the International Information Technology and Innovation Foundation (ITIF) released a "2008 global ranking of broadband network construction status report", the ranking of broadband penetration rate from the average rate and the price and other aspects to the situation of each country statistics. South Korea ranks first, the broadband penetration rate of 93%, and speeds of up to 49.5Mbps. Japan ranked second in the penetration rate of 55%, fastest in the world, reaching 63.6mbps. Finland ranks third, the United States ranked 15, India's failure to list were. At present, the domestic operator's network at all levels, from the net export of aggregation links to the core network links are to varying degrees, bandwidth resource constraints, due to communication network infrastructure and management level is relatively backward, Indian operators interoperability between the network bottleneck and so on, that arise between network packet loss is widespread. The spread of P2P and multimedia applications is further exacerbated by inter-network congestion and packet loss from occurring.
LAN and WAN bandwidth is not the essential difference between the differences, but there are the physical link transmission characteristics of the differences: packet loss and delay.
Long-distance transmission, protocol conversion and network congestion will cause delays from occurring. Even if the data packets in milliseconds the speed of fiber transmission also takes time. Also different network data link protocol is different from broadcasting in different ways, will continue to receive, unpack and re-packaged data to the next network node, which may cause network latency.
Congestion can cause packet loss and packet retransmission. As the router, a mechanism to eliminate the gap between the bandwidth, and data packets between networks of different size, large-capacity bandwidth to small-capacity bandwidth of the conversion process, the need to queue up, thus causing congestion. The data packet queue timeout will be abandoned, thus causing packet loss. In order to ensure data integrity, sender re-transmits the data packets and causing packet retransmission.
Because India's telecommunications network infrastructure and management level is relatively backward, coupled with a monopoly on causing interoperability problems, leading to inter-network packet loss due to congestion resulting from common. In addition, compared with foreign countries, the Indian P2P and multimedia applications more spread out, further aggravated the inter-network congestion and packet loss issues. |
