RE: vpls scaling question

Loa,

1) I'm not trying to create requirements here, just to understand what the
group consensus is. i.e. is this  vpls thing intended to emulate current
switch capabilities/constraints or do something more ?

2) Perhaps my terminology was confusing. I was referring to the case of a
service provider with 10,000,000  customers, each with their own service
instance. This indeed would be a blessing ! (assuming they all pay their
bills). Each customer may only want a relatively few VLANs...

3) Is this a realistic target application ?? well that's always debatable!
But consider the case of 1 AS per LATA -  and what's the max number of
households / LATA ? Well there are metro's with 1-10,000,000 households...

4) Specific deployments depend on a lot more than design constraints (e.g.
$).....
  so ...see 1) above...

regards
Steven Wright 

> -----Original Message-----
> From: Loa Andersson [mailto:[email protected]]
> Sent: Sunday, May 11, 2003 6:17 AM
> To: [email protected]
> Cc: [email protected]
> Subject: Re: vpls scaling question
> 
> 
> Steve,
> 
> just to make sure we are on the same field. For me a vpls is 
> a service I
> as an oprator offer a customer, could you please give me a scenario
> where that customer would need 10,000,000 VLANs.
> If you are talikng about number of vpls's in the operator network,
> 10,000,000 "service instances" is not a problem, in fact it would be a
> blessing :)
> 
> /Loa
> 
> Steven.Wright wrote:
> > to clarify the INTRA- AS vpls case
> > I would like to better understand the expected capabilities 
> of  INTRA-AS 
> > vpls vs a network of Ethernet switches.
> >  
> > What is the scaling objective for vpls ?
> > Current generation Ethernet switches have evolved from the 4096 
> > VLAN/network to 4096 VLAN/port. Scale limits on  SP 
> Ethernet networks 
> > are typically driven by other factors e.g. MAC address table size, 
> > issues with multicast etc.
> >  
> > Is vpls intended to tackle any of those scale constraints ? 
> or to put it 
> > another way...
> > Current Ethernet switch networks can support on the order 
> of 10,000 VLAN 
> > service instances.  Will vpls enable scaling to the 
> 10,000,000 or so 
> > service instances/AS necessary to enable Ethernet as a 
> residential service ?
> >  
> >  
> >  
> >  
> > 
> >     -----Original Message-----
> >     *From:* Steven.Wright [mailto:[email protected]]
> >     *Sent:* Wednesday, April 23, 2003 5:04 PM
> >     *To:* *Subject:* vpls scaling question
> > 
> >     vpls is proposed as a mechanism to enable large-scale 
> Ethernet networks.
> >     Can anyone quantify for me at what stage flat Ethernet networks
> >     break and vpls is required ?
> >     i.e what should the decision criteria be to convert an Ethernet
> >     network to a vpls network ?
> >     Steven Wright
> >     BellSouth
> > 
> 
> 
> -- 
> /Loa
> 
> mobile + 46 739 81 21 64
> email: [email protected]
> 


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