Spotted on cisco-nsp, seems like a handy reference of otherwise undocumented info:
http://people.ucsc.edu/~warner/buffer.html
This is probably covered 99% of the time in data sheets - at least on Arista gear it is. Buffering is an important topic to know - particularly in the DC - and one that I surprisingly remember hearing nothing about in my CCNP studies. I embarrassingly didn't know anything about the subject really until I started working where I do now.
Nice to see a document that has a lot of it all in one place. Saved that link.
Quote from: AspiringNetworker on February 05, 2016, 02:11:08 PM
This is probably covered 99% of the time in data sheets - at least on Arista gear it is. Buffering is an important topic to know - particularly in the DC - and one that I surprisingly remember hearing nothing about in my CCNP studies. I embarrassingly didn't know anything about the subject really until I started working where I do now.
I must be honest, I didnt know anything about Port Buffer before NFS.
The only I knew, If it can be considered something to know, is "Never do port-channels inside same ASIC" so I usually do port-channels using port of differents ASICs.
Its a shame, I know :-[ :-[
thats a great article which has helped me heaps in the past - the only thing missing is a proper description of all the different kinds of buffers, esp. the more esoteric ones
Just to throw more info into the pile - good old breakdown of the ASIC breakdown on the 3850s.
http://people.ucsc.edu/~warner/Bufs/cat3850