01-23-2008 04:57 AM - edited 03-05-2019 08:39 PM
Hi,
According to the 3750G spec, it forwards at line rate !?!
So, does this product really forward/switch between VLANs at 1Gbps ?
That's awefully fast.
Thanks
01-29-2008 07:00 AM
The port ASIC of the 3750 has an output capacity of 4.4 Gbps. The ASIC can be implemented in one of two ways:
24 ports of 10/100 + 2 Gig port can be assigned to a single port ASIC which would give 4.4 Gig. Or, 4 ports of 1 Gig can be assigned to a single port ASIC which would give 4.0 Gig; which
undersubscribes the ASIC.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12244se/ol14630.htm
01-29-2008 07:19 AM
Thanks for the response.
However, I cannot find reference to this in the link, is it an actual soft configuration to implement ASIC usage in this way ?
I never seen this before
Thank you.
Matt
01-29-2008 01:50 PM
The performance specifications of the 3750 series should not support line rate across all ports for some models (generally the 48 gig port models). See Table 2 "Performance" in http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps5023/product_data_sheet0900aecd80371991.html. Note the 32 gig fabric limitation and the various Mpps ratings.
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