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Community Member

MPLS TE - Record-route

Hi,

Can you tell me what is the purpose of the "tunnel mpls traffic-eng record-route".

Just for information (to have the record route in any show command) or mandatory for a particular configuration?

Thx.

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: MPLS TE - Record-route

Guillaume,

This command is used to force the inclusion of additional information in the route record object of the RESV message. This information is only required for MPLS TE FRR (Node Protection). This command is enabled automatically when FRR is requested on the tunnel interface using the "tunnel mpls traffic-end fast-reroute" command.

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
3 REPLIES
Cisco Employee

Re: MPLS TE - Record-route

Guillaume,

This command is used to force the inclusion of additional information in the route record object of the RESV message. This information is only required for MPLS TE FRR (Node Protection). This command is enabled automatically when FRR is requested on the tunnel interface using the "tunnel mpls traffic-end fast-reroute" command.

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
Community Member

Re: MPLS TE - Record-route

Ok, I think it's uses for the PLR to have labels for the protected LSP to reache the MP.

Thanks for helping me.

Cisco Employee

Re: MPLS TE - Record-route

Guillaume.

That is correct. The information is indeed used by the PLR to determine what label is used by the protected LSP on the merge point (MP).

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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