Does an SFP uplink port "steal" an available port?

[comervp]

For example, this Yuanley switch announces 11 ports as 8 PoE+ ports and 3 uplinks (2 RJ45 and 1 SFP ports):

https://www.amazon.com/YuanLey-Ethernet-1000Mbps-Internal-Compatible/dp/B0795MFCHZ/ref=sr_1_3?ie=UTF8&qid=1521348667&sr=8-3&keywords=yuanley

• Is the use of any uplink port reducing the PoE ports available? It seems yes, like meaning 7+1, 6+2, 5+3. Do you agree?
• Does it matter in port reduction if it is the SFP or the RJ45's?

Thx.

 

[bp2008]

I've never heard of a switch not letting you use all the ports. It is safe to assume you can use them all at once.

 

[comervp]

Thanks bp2008 for your replay, it helps. That was also my initial tought but having no experience, I'm quite confused at present.

I can't precise, but I think I've read comments here that made me believe that using an uplink port invalidates a "normal" port, that could mean a 4+1 (uplink) port switch let you 3 free ports instead of 4, and the same for an 8+1 or 2, 16+1 or 2, or in this case probably the 3rd. (SFP) also.

Can someone bring some more light? Thanks again.

 

[comervp]

speaking of unmanaged, of course.