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MPLS PHP & summarized routes

Hello everyone, sorry in advance for this very basic MPLS question :o)

Documentation says that a border LSR will tell the PhP router to use the "implicit null" label for directly connected or summarized routes.

¿How does the last hop router know which ones of its routes are summarized?

Thank you very much in advance

Rogelio Alvez

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: MPLS PHP & summarized routes

Rogelio,

The router will send an implicit null label for directly connected routes or routes that it locally summarized.

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
1 REPLY
Cisco Employee

Re: MPLS PHP & summarized routes

Rogelio,

The router will send an implicit null label for directly connected routes or routes that it locally summarized.

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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