A Practical Guide to Advanced Networking (paperback) by Jeffrey S. Beasley Piyasat Nilkaew & Piyasat Nilkaew

Author:Jeffrey S. Beasley,Piyasat Nilkaew & Piyasat Nilkaew
Language: eng
Format: epub
Publisher: Pearson Education Limited (US titles)
Published: 2013-11-13T05:00:00+00:00

Figure 6-19. The daily plot of a router’s data traffic

Sometimes, the graph of the network traffic over a longer period of time is needed. Figure 6-20 shows the data traffic through the router over a six-week period. The traffic shows some consistency except for a change from week 11 to week 12. Most likely, this can be explained by examining the network trouble reports and maintenance logs to see if this router was briefly out of service.

Figure 6-20. The weekly plot of a router’s data traffic

Justifying the expansion of a network’s capability (for example, higher data rate or better core or distribution service) requires showing the manager data traffic statistics. Figure 6-21 is a plot of the router’s monthly data traffic. The summer shows a significant decrease in data traffic. The plot also shows that the network was down once in the June–July period and again in January. The manager wants to know if there is justification to increase the data rate of the router to 1 gigabit (1 GB). (The router’s current data rate is 100 Mbps.) Is there justification to upgrade the router to 1 GB? Probably not, at least not immediately. The maximum measured average data rate is about 16 Mbps. The router’s 100 Mbps data rate does not seem to be causing any traffic congestion problems.

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