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

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