You know you’re a nerd or really bored when you get into conversations about the oversubscription of ports on each ASIC. :P So obviously I was having this conversation, lol. I’m pretty noobish when it comes to the mechanics of network gear. I know the configuration relatively well, but not enough about the internals. So I did some searching and came across this great page on James Ventre’s blog. Check it out if you’re curious about ASICs and how many ports each will support on various platforms. I found some other interesting reading on the site as well.

Here’s another helpful link describing the architecture of the 3750-Es. Page 53 goes into the ASICs specifically.


Colby Glass has been in IT since 2002. He is currently a Systems Engineer (presales) with a Cisco Gold partner and holds the CCNP R/S, CCNP DC, CCDP, CCIP, JNCIA-ER.

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