I work in a small company, dealing more on the sysadmin side but trying to learn more about networking. I am specifically interested in service provider stuff. We have a EDI fiber circuit through Comcast. The handoff is a Ciena box. My understanding is that the Ciena box is facilitating an Ethernet connection between our router and Comcast's router? We have a /30 between them. Is this how it works, or is it more complicated than that? Like at what point does it transition from Ciena equipment to Juniper/Cisco or whatever they run at the central office?
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