This one came up at the water cooler the other day. When going through the design process, what factors are useful for determining router and switch equipment requirements. In other words, how do I know when it is time to upgrade my router? Not numbers and types of ports, but what factors should be considered when determining if a router or switch will have sufficient horsepower to serve an organization's need for the purpose and time frame required.
For example, if I were to determine that my requirement is ATM DS3, simple QoS ( for voice prioritization ) my non voice data will flow at 10 megabits peak on the WAN and typical flow of 3 megabits, and that my voice traffic will use G729 and end up with about 1 megabit average and 3 megabit peak. I can look at things like Cisco's published numbers on PPS, I can set up a test lab, simulate traffic flow, and check out CPU usage. I suppose if I were very sophisticated, I could measure throughput, latency, etc. I understand that as with all things networked, the answer is "it depends". things like access-lists, process switching, policy routing, etc can effect things. Some of us are just debating whether or not CPU utilization is the "best" measure. Over what period? What other factors might be best brought into the mix of factors to consider? Just wondering. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60361&t=60361 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
