(RADIATOR) traffic shaping for radius requests to limit spike damage

[Tariq Rashid]

i wonder if anyone has experience in this or comments ...

in a test environment, we note that rare spikes of very high request rates
seem to knock out the radius servers for a short period while they recover.

an immediate solution that comes to mind is to use traffic shaping (such as
ALTQ) to smooth off the peaks in request traffic. that is, for normal
request rates no traffic shaping occurs, but for higher request rates, the
peaks are smoothed out before they reach the servers. this is more a
preventative measure until the cause of the server knock-out is found.

has anyone done this - or have comments as to the usefulness of this method.

tariq

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