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Information Services@ANU > Network Traffic & Charges: Explanation of Data RetiredThis document has been retired. Network Traffic & Charges: Explanation of DataThese tables are produced automatically at the beginning of the following month. Traffic in the monthly table is the adjusted sum of the figures in the daily tables. Adjustments are made, if the web logs or direct logs were incomplete. The format of the tables is as follows:
Business Areas These are the financial cost centres of the University from which network traffic costs are recovered. Each subnet is identified with one of these business areas, with the University's WWW cache, or as one of a number of other DoI production services. Direct Raw incoming traffic is adjusted in proportion to the chargeable traffic provided monthly by the University's service provider. Some of the University's incoming traffic is also redistributed to other members of the ACT RNO, in particular News. The reasoning behind some of these reassignments is complex, and occasionally political. Direct traffic is further identified by its origin, being either international, "off net" or "on net". WWW All incoming network traffic through the WWW cache is distributed to business areas on a first hit basis. That is, the first person to access information, and therefore to force it to be loaded onto the cache, pays for it. This is ACT RNO policy. The amount of WWW cache traffic is the sum of incoming direct traffic accounted against the University through the ACT RNO cache (WWW RNO) and through the University's cache (WWW ANU). Except for special circumstances, most such traffic will appear under WWW RNO. WWW traffic is further identified by its origin, being either international, "off net" or "on net". Total This is the sum of incoming traffic entries for each business area under the "Direct" and "WWW" columns. Total Direct This is the sum of incoming Direct traffic entries for each business area under the "Int", "Off-Net" and "On-Net" columns. Direct International This is Direct traffic originating from outside of Australia. Direct Off-Net This is Direct traffic originating within Australia, but not from other AARNet2 members. Direct On-Net This is Direct traffic originating within Australia, and in particular from other AARNet2 members. Total WWW This is the sum of incoming WWW traffic entries for each business area under the "Int", "Off-Net" and "On-Net" columns. WWW International This is WWW traffic originating outside of Australia. WWW Off-Net This is WWW traffic originating within Australia, but not from other AARNet2 members. WWW On-Net This is WWW traffic originating with Australia, and in particular from other AARNet2 members. MBytes This is the sum of incoming traffic entries for each business area under the Direct and WWW "Total" columns. Cost This is the product of the entries under "Int" multiplied by $195 per gigabyte plus the entries under both "Off-Net" and "On-Net" multiplied by $45 per gigabyte. Remember that incoming traffic figures in this table are given in megabytes (1 gigabyte = 1000 megabytes). Percentage The percentage of the total incoming traffic (and cost) by business area. Faculties As an example, only the figures for the Faculties (the largest incoming network traffic consumer) are shown. The table shows the Faculties received 26,870 megabytes of Direct traffic and 41,775 megabytes of incoming network traffic through the WWW cache. The total incoming traffic for the Faculties was therefore 68,645 megabytes at a cost of $11,766. This was 33.6% of the University's total for this month. Total Business Areas The entries in this row are the totals over all business areas in the rows above. DoI Production All subnets managed by DoI which support services on behalf of the University are classified as DoI Production. Services include ANU Online (www.anu.edu.au), electronic mail (anumail), dialin, general purpose systems (eg. leonard), the supercomputer etc. Incoming traffic to these subnets is not currently charged against users because of the difficulty of fair distribution. Total All Areas The sum of incoming network traffic to business areas and DoI production services. WWW ANU Incoming WWW traffic received by the Universty's WWW cache directly from the service provider. Total ANU Direct The sum of ncoming network traffic to business areas, the University's WWW cache (WWW ANU), and other DoI production services. WWW RNO Incoming WWW traffic received by the University's WWW cache through the ACT RNO cache. News RNO Currently one third of the incoming news feed traffic to the ACT RNO's news server. The ANU, University of Canberra and ADFA each pay one third of these costs. These costs are not passed on to users at this point in time. Other RNO A small amount of miscellaneous incoming traffic, otherwise not distributed. Total The total incoming network traffic as reported to the University by the service provider. |
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