Hello all,
Can anyone advise/help with this? =20
Recently we installed a switched network using the cisco colapsed core =
model.
Our core/distribution switches are 2 cat 6506's connected to each other =
via a gbit etherchannel providing 2 gbits of bandwidth between the core =
switches.=20
Our trunk links from the core are fast etherchannel cat 5 providing 200 =
mbts of bandwidth to each access switch.
We have 5x cat 5500's providing access points into the network for end =
our stations. Each access switch has approximately 50 end stations =
connected and each end station has a full duplex 100mbits switched =
connection.
My maths is petty shaky but does this not mean that each trunk link from =
each access switch should idealy be cabable of providing 50x100mbits =
=3D 5gbits - 20% for the 20/80 rule 4GBits of bandwidth?=20
which, If i am correct means our trunk links are hugely over =
subscribed!!
Show proc returns an average CPU utilization on the access switches of =
give or take 8% =20
The cores show approx 2%=20
Show traffic returns very low peak peak traffic stats (all switches =
less than 8%)
responce times are very good. =20
now for the question .... should i be concerned? If my maths is correct =
why such low traffic/CPU stats,=20
is there a command on the switches to see how much bandwidth is being =
used on the trunks?
TVMIA=20
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