So, if the FTTC cab gets wiped out by a vehicle (as has happened numerous times) it will get replaced and working in 7 hours? Rather than the weeks it normally takes?
I can�t see how the physical vulnerability of FTTC cabs is compatible with a high SLA business service.
Nope, won't get fixed any quicker just because a high care level is on one of the cirxuits. An axcident like that is considered an MSO so it gets fixed as quickly as possible.
Typically that would need a new cabinet deployed, which can be turned around in a day or two in some cases, but if for example the incident impacted the power supply (requiring the power company to be involved) or tore up the tie cables to the PCP, it's going to take a lot longer to sort.
Now when you compare this to a point to point ethernet circuit, yes there's *traditionally* less exposed elements, but there's a lot of nodes that are just as susceptible to an incident in the same way as you suggest, including equally as exposed cabinets, housing fibre.
You may actually find that repair of this is as, if not more, complicated than dropping a pre-built VDSL cabinet on top of a footprint. Poles running down the side of a busy road for example.
I agree though, time to restoration should be shorter on a dedicated pt-pt service, and it rightly is a superior service, and priced accordingly.
The benefits of a circuit like this is speedy fault restoration for line specific issues (more likely on copper), and the bandwidth guarantee which you just don't get on a consumer grade service. Lower rental, quicker deployment and none of the build-out challenges you find with EAD.
The minimum speed "guarantees" you're seeing pop up on some consumer grade packages now are just a, "sorry have some money back" or "you can leave if you want" promises.
This type of service typically wound have proper QoS being applied on the carrier's network to ensure bandwidth and such an issue being treated as a fault until resolved, with proper investigation.
These circuits also tend to use a native ethernet presentation, which has some benefits for larger businesses with bespoke or MPLS like arrangements (routing protocols, stacked vlans etc).
Blair McGregor
Network Architect -
Syscomm