What are Uplink ports on cisco switches (for example, on ME-4924-10GE) for?

Question

Computer networks

Can anyone explain to a novice kiskovod what is the logical and physical difference between uplink ports and others? And when to use them.

Answer 1

Can anyone explain to a novice kiskovod what is the logical and physical difference between uplink ports and others?

The logical difference might be the different naming of the interfaces. The physical difference may be that there are separate ASICs specifically for these interfaces. I don't know the architecture of this line, I can't claim it.

And when to use them.

When you need to collect (aggregate) traffic from devices connected to 'regular' ports and pass it on.

That is, you should not try to aggregate ordinary ports? Uplink only?

Traffic aggregation is, for example, when you aggregate traffic from multiple servers or clients connected on 'regular' ports and route it to the core and on to the internet via an uplink. In the sense of etherchannel, it is possible to aggregate both ordinary interfaces and uplinks among themselves.
The essence of an uplink is a high-bandwidth interface for 'centralized' transmission of traffic to other devices (core switches, etc.). No one forbids you to connect to it, for example, a server. It is also worth noting that often uplinks are dual-identity, i.e. of the two ports, under 8p8c (RJ45) and under SFP optics, one works simultaneously.
In your case (see here ):

Technical Specifications
Performance and Switching Specifications
Uplinks: Four SFP ports and two X2 ports with support of Cisco Gigabit EtherChannel® technology
...
Bandwidth aggregation up to 16 Gbps through Cisco Gigabit EtherChannel technology

I assume that only gigabit interfaces can be aggregated from uplinks. In addition, it is not clear whether gigabit uplinks can be used together with 10-gigabit ones (I did not work with this device in such a configuration).

Answer 2

Yes no problem
www.duxcw.com/faq/network/uplink.htm

Answer 3

Well, everything is logical - this is an Agregation switch, gigabit ports for clients, 10G uplink. We connect with uplinks to a higher-level switch - with Core, with some 6xxx-7xxx .