What equipment do providers have at the entrances and how is the Internet organized in the city?

Question

Computer networks

In all more or less large cities there is Internet. So, I'm wondering how the Internet is organized in one city with a population of 100,000-200,000 people. What equipment costs (approximately), what equipment is in the entrances?

Answer 1

in a kernel there is something like tsiska 6500 series with BGP. Rich companies have junipers.
PPPoE is distributed by PPPoE concentrators, IPoE-BRAS servers. All this is controlled by billing for all sorts of protocols such as snmp, etc.
On the ring there are switches mainly with optical ports.
At home - all sorts of des-3200
Ppoeshniki are isolated using ACLs on switches, allowing only PPoE frames on ports, and others in separate VLANs.
Signature. SES engineer of one small provider.
I advise you to view / read the SDSM course from linkmeup - everything is explained there on the fingers. Is on youtube

Answer 2

each home usually has a managed switch/switch.
unlike the usual unmanaged switch, of which there are a lot in each locale, it allows you to monitor / count the traffic of each port and manage the port - for example, disable the defaulter.
around the house they usually stretch the "copper" of an ordinary twisted pair cable. between houses already optics.
servers are higher in the hierarchy - routing, dns, billing (traffic accounting and switch management), the provider's website and all that.
it if without vpn-perversions.