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Determine the throughput for cisco 3548

Posted on 2003-10-27
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Last Modified: 2012-08-13
I had a software call qcheck which help to measure the throughput from one endpoint to another endpoint. I am trying to measure the throughput for one cisco 3548 to another cisco 3548 using the qcheck software. Can anyone tell me how do I determine the typical throughput for a cisco 3548 switch so I can compare it against my measurement from qcheck?
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Question by:ghgan
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td_miles earned 50 total points
ID: 9631799
if:

a. the switch is 100mbps ports
b. you connect your PC to it with 100mbps
c. you connect another device with 100mbps to the switch
d. these are the only devices on the network

the theoretically you should get 100mbps bandwidth between the two devices. The actual bandwidth you do get will not be 100mbps as this is only a theoretical maximum.

If the switch is a 3548 XL, then this is an end-of-life model. The specs suggest that this model had a 5Gbps switching fabric, which means it will handle 5Gbps traffic total over all of the ports (5Gbps / 48 ports => 104Mbps per port, so theoretically each port should be able to operate at full 100mbps speed at all times).

If it is a 3550 48-port switch then it has a 13.6 Gbps switching fabric.

If you cascade two of the switches together (which I think is what you are saying), then you shouldn't lose any bandwidth. It is only when you start adding other devices that you will see a loss in bandwidth between the two devices you are testing and only then if the other devices need to communicate with the devices you are testing with.

I'm not quite sure what you are asking, but does that answer it ?
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by:ghgan
ID: 9638412
Hi td_miles

Do you know where can I get a soft copy of the spec or data sheet for this 3548 XL?
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by:td_miles
ID: 9638606
Time for some Cisco links.

Specifications for the 3500 XL switch range:
http://www.cisco.com/en/US/products/hw/switches/ps637/products_white_paper09186a00800925df.shtml
(3548 isn't mentioned, but it is from the family, so architeture should be the same)

3548 XL end of life notice:
http://www.cisco.com/en/US/products/hw/switches/ps637/ps643/index.html

product description for the 3500 XL range:
http://www.cisco.com/en/US/products/hw/switches/ps637/products_installation_guide_chapter09186a00801ab94c.html

All of the above links can be found from the root page for the 3500XL switches:
http://www.cisco.com/en/US/products/hw/switches/ps637/index.html
(some are quite a few levels deep of following link from this page)

HTH
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Author Comment

by:ghgan
ID: 9647023
Hi td_miles

Unfortunate, the cisco links you have given me does not give me a detail data sheet for the 3548 XL switch.
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Expert Comment

by:td_miles
ID: 9647157
what specific info are you looking for ?

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