[c-nsp] Low end MPLS question

[Jason Lixfeld]

On 26-Oct-04, at 5:36 PM, Matthew Crocker wrote:

>>
>>>
>>> 3750 with Advanced IP Feature Set will do MPLS, EoMPLS and MPLS VPNs.
>>> Might be overkill if this is going to be plugged into the back of a 
>>> DSL
>>> link though.
>>>
>>> 800 Series CPEs can do remote access to MPLS VPNs, but that feature 
>>> set
>>> may not be flexible enough to act as a proper PE so you may need to 
>>> go
>>> up to a 1700/2600.
>>
>> The price is very important, since the alternative is to run few 
>> separate
>> routers, each doing a PPPoE, but that does not scale very well when 
>> adding
>> new networks.
>
> Skip MPLS,  Run VRF with multiple PPPoE sessions over the same DSL 
> line.  if you are using Verizon DSL it is just a bridge Ethernet 
> segment back to your ATM UNI so you can have multiple PPPoE sessions, 
> attach them to separate VRFs along with a VLAN going out to a switch.

The large majority of Canadian DSL wholesalers use Ethernet to Bell 
Canada, not ATM.  Some wholesalers do in fact use ATM, but I'm not sure 
if Netsurf is one of them or not.

> For truly 'el cheapo' I have connected multiple Linksys routers to a 
> hub which is connected to a single Westell DSL modem/bridge.  The 
> Linksys boxes all made separate PPPoE connections to my Redback.  I 
> think I was limited to 6 routers because  the Westell has an ARP cache 
> limit.  Each Linksys did NAT for the network and fought for bandwidth 
> over the DSL line.