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MPLS hub and spoke

Ratheesh mv
Beginner
Beginner

HI all ,

 

I read that to achieve MPLS hub and spoke VPN the following things are needed .

1)Two different RT's - > I understood this point .

 

2)Different RDs -> I could not understand this point.

 

Could anyone  technically justify  the point number 2 (Different RDs)? I could not spot any challenge even if I use the same RD on hub and spokes.

 

 

Thanks in advance.

 

 

1 Accepted Solution

Accepted Solutions

Harold Ritter
Cisco Employee
Cisco Employee

Hi @Ratheesh mv ,

 

MPLS VPN hub and spoke could work with the same RD in all sites, but it is normally recommended to use a different RD for each site.

 

Regards,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

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4 Replies 4

Harold Ritter
Cisco Employee
Cisco Employee

Hi @Ratheesh mv ,

 

MPLS VPN hub and spoke could work with the same RD in all sites, but it is normally recommended to use a different RD for each site.

 

Regards,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Hi  Harold Ritter,

 

Thanks for reply .

 

Is there any genuine reason behind recommending to use a different RD for each site?

 

Thanks in advance.

 

 

MHM Cisco World
Advisor
Advisor

..

MHM Cisco World
Advisor
Advisor

I write comment before but I think you don't get idea so I share this slide from ciscolive explain why we need unique RD.

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