[j-nsp] DCI design

[Adam Vitkovsky]

Hi James,

VPLS is acting like a L2 switch so why not run OSPF between the DCI routers directly. 
If PEs are to participate in the routing then L3VPN is enough. 

 
adam
> -----Original Message-----
> From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf
> Of james list
> Sent: 10 April 2015 08:52
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] DCI design
> 
> I need to streatch an OSPF totally stub area (let’s say area 10) among two
> DataCenter using VPLS, I’m wondering if you can suggest me how to connect
> all the other networks (not partecipating to area 10 by design)  I need to
> route among the two DC:
> 
> 1) Create an additional VPLS putting area 0 and hence the PE acts as ABR
> 2) Use BGP and VRF L3 among the two DC hence OSPF area 10 routes are also
> redistributed in BGP
> 
> Any pro/cons do you see ?
> 
> here the schema:
> 
> 1)
> 
> VPLS OSPF                      VPLS OSPF
> area 0                                area 0
>     |                                       |
>   PE ------------------------------    PE
>     |                                       |
> VPLS OSPF                     VPLS OSPF
> area 10 ot stub             area 10 tot stub
> 
> 
> 2)
> 
> VRF DC      ---- bgp ----      VRF DC
>     |                                       |
>   PE ------------------------------     PE
>     |                                       |
> VPLS area 10                     VPLS area 10
> tot stub                              tot stub
> 
> 
> Cheers James
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