does it get counted as normal consumption by your servers IN/OUT traffic in the general practice of DCs?

thanks

Are you talking about transfering data to another server hosted at the same DC or having your own LAN within the datacenter (ie. you owning multiple servers in the datacenter on a LAN)?

Some DC's count it as IN/OUT traffic (ev1 does)

We do not, but u may wanna check with your DC.

For us, it depends on the type of the account and where/how the data transfer measurement is taken for that type of account.

For instance, with colo accounts, the measurement is taken at the edge of our network just before it hits our border router. On the other hand, with VPS or shared hosting accounts, the measurement is taken on the server. That means that traffic between local servers isn't counted for colocation, but is counted on shared and VPS.

I think you'll find that to be pretty typical, but I know there are some places that measure right at the switch port of your server for dedicated and colo thus counting everything, including broadcast traffic (which isn't usually a significant volume).

For us, anything within the farm, is local (not counted). Anthing existing or entering our network edge, is counted.

Alternatively, for our clients, its different. Bandwidth is billed based on the PRTG traffic analysis on the Ethernet Card.