Poor Gigabit Performance on 4108gl

[Chris McFarling]

Does the 4108 do store-and-forward packet processing only, or is it capable of cut-through processing? Is it feasible that, if it only does store-and-forward, that's the root of the problem? Would a cut-through device make a difference here perhaps? Finally, do the new models do cut-through? (5406zl, 4208vl)

I'm looking at new switches so I'm reviving this thread. I want to make sure I don't have the same performance issues if I do replace the 4108.

[Matt Hobbs]

As far as I know, all ProCurve switches are store and forward.

This is needed to check CRC's on packets, and is also required for multilayer operation (layer 2 & 3).

There's a good article about switching methods here:

http://www.ciscopress.com/articles/article.asp?p=357103&seqNum=4&rl=1

[Chris McFarling]

Has HP abandoned Fast Path technology on the newer switches? In researching the 4100, it was apparent that HP was touting their Fast Path tecnology along with that model. I can't seem to find any references to Fast Path in regards to their newer chassis switches. Are they still using a similar architecture perhaps but just not giving it a fancy marketing name?