[c-nsp] Cisco 3750G backplane throughput

[Bryan Holloway]

Hello community,

I'm curious if someone is in the know or can point me to a document that 
describes how the backplane is carved up on a 3750G. I.e., ports per 
ASIC, etc., if applicable. I've dug around the Cisco docs to no avail.

I'm particularly interested to know how the four-port SFP section is 
handled on, for example, a WS-C3750G-24TS. Does it have its own ASIC for 
all four SFP ports? Or is that also carved up amongst other ports? If 
one were to LAG all four SFP ports together, should one expect to be 
able to reach a full 4 Gbps (assuming no taxation from other switch ports?)

We're running into an odd issue where we're unable to achieve more than 
2 Gbps of bandwidth, but I have a hard time believing this is a switch 
limitation.

Any input would be most appreciated, thanks!

			- bryan