[LINK] National Broadband Network - except it's not national.

[Richard Chirgwin]

Bernard Robertson-Dunn wrote:
> Richard,
>
> So is it a National Network or network components that those who want a 
> National Network have to put together with components from other suppliers?
>   
Both.

The access network will be national - fibre to 90% (or whatever), 
wireless to some, satellite to some.

The interconnect between NBN POIs will be mostly sourced from what's 
already there.
> I don't have a problem with NBN not building a replacement long-haul 
> fibre network. What I do have a problem with is them calling it a 
> National Network if it isn't.
>
> Why doesn't NBN Co buy services from whomever and put together a single 
> National Network? Then it really would be a national infrastructure project.
>   
The Internet isn't a single network. iiNet or Internode aren't single 
networks.

Even Telstra isn't a single network except in ownership. For eg: the 
mobile network is clearly distinct from the fixed (although this is 
becoming less so, architecturally, as time goes by).

In other words, why is an architecture that delivers national wholesale 
coverage for the customer access not "national"?

RC
>
> On 8/05/2010 4:08 PM, Richard Chirgwin wrote:
>   
>> Bernard Robertson-Dunn wrote:
>>    
>>     
>>> So, in this context, national means it exists in the nation of
>>> Australia, not that it's a National Network?
>>>
>>> On 7/05/2010 1:21 PM, Paul Brooks wrote:
>>>
>>>      
>>>       
>>>> As seen by the ISP, its a totally different beast - a disjoint
>>>> collection of 200+ finger-networks providing access from each POI
>>>> location to the houses/businesses/schools/traffic-lights close to that
>>>> POI location. The ISP has to figure out from the normal non-NBN sources
>>>> how to link their systems and infrastructure to each of those POIs that
>>>> they wish to serve - there won;t be anything in the middle.
>>>>
>>>> (Interesting problem - NBNCo will presumably need to lease low-bandwidth
>>>> capacity from the existing long-haul transmission suppliers to carry
>>>> their network management traffic at the very least from their NOC
>>>> locations to their equipment at each of the 200+ POIs )
>>>>
>>>> P.
>>>>
>>>>
>>>>        
>>>>         
>>> So NBNCo will need to create a National Network to manage its
>>> infrastructure holistically, but won't offer a holistic data service to
>>> ISPs?
>>>
>>>
>>>      
>>>       
>> Bernard,
>>
>> The problem is that the NBN has to resolve so many conflicting
>> requirements.
>>
>> 1. Provide high-speed access to end users.
>> 2. Introduce competition to Telstra where there is currently no competition.
>> 3. Don't compete with other fibre owners (ie, where there is a
>> competitive market, such as the Sydney-Melbourne corridor, why should
>> NBN overbuild it?)
>>
>> There are others, but this will do for now.
>>
>> Today, an ISP with a presence in Broken Hill has to buy backhaul to get
>> from its DSLAM to Sydney. Post-NBN, the ISP will still have to get from
>> Broken Hill to Sydney - but it will have a competitive provider; if not
>> NBN Co, then someone else. So its backhaul should be cheaper than today
>> (I selected Broken Hill because it's a one-horse town). So the situation
>> is better for the ISP, not worse.
>>
>> And, of course, the ISP gets to access the fibre link to the customer
>> instead of copper from a DSLAM.
>>
>> Another improvement from the ISP's point of view is that 200 local POIs
>> is far fewer than (say) 500 exchanges (that's the number of exchanges
>> currently running competitive DSL, by my rough count). So they will be
>> buying fewer backhaul links and are guaranteed at least a minimal amount
>> of competitive backhaul supply.
>>
>> Apart from the semantics - "it's not national" (actually, the *access*
>> network will be national or nearly so. NBN Co is simply not briefed to
>> build a replacement long-haul fibre network as well) - I'm not sure what
>> the problem is.
>>
>> RC
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>>    
>>     
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