1. Where can i find a document in CISCO site saying WAN link should not exceed 70 percent utilization. Should the WAN link exceed the treshold 70 percent level, end user need to upgrade the bandwidth of the link.
2. I need to send the above document/reference to customer. A reference from cisco will have weight to the customer.
Re: WAN link should not exceed 70 percent utilization
It is a two different things that you are stating. When you say leased line, it should be UP (not reset) regardless of router is being using CPU 100%. You can find the particular interface information with "Show Controller or Show Serial," it can hint you CRC error or some sort of error to cause reset. It may be your circuit issue or Serial card in router is being the problem. Serial card can be looped and generate test also your Telco can loop to find out.
If both confirmed good then proceed with router's CPU and memory configuration to find out process switching or fast switching problem.
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