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[rare-dev] RES: How to define explicit paths on Segment Routing


Chronological Thread 
  • From: Marcos Felipe Schwarz <>
  • To: Cristina Klippel Dominicini <>, mc36 <>, "" <>, Frederic LOUI <>
  • Cc: Everson Borges <>, Magnos Martinello <>
  • Subject: [rare-dev] RES: How to define explicit paths on Segment Routing
  • Date: Wed, 21 Sep 2022 14:55:16 +0000
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Hi Csaba,

Would FreeRtr Implementation of SRv6 be able to support longer explicit paths
than the SR-MPLS implementation?

Regards,

Marcos Schwarz

-----Mensagem original-----
De: Cristina Klippel Dominicini <>
Enviada em: quarta-feira, 21 de setembro de 2022 10:35
Para: mc36 <>; ; Frederic LOUI
<>
Cc: Everson Borges <>; Marcos Felipe Schwarz
<>; Magnos Martinello <>
Assunto: Re: How to define explicit paths on Segment Routing


Hi Csaba,

Thank you for the information! So, for the demo, we will try to force some
configuration in the hops to select the desired paths for each scenario the
experiment.

Best regards,
Cristina

________________________________________
De: mc36 <>
Enviado: quarta-feira, 21 de setembro de 2022 04:18
Para: Cristina Klippel Dominicini; ; Frederic LOUI
Cc: Everson Borges; Marcos Schwarz
Assunto: Re: How to define explicit paths on Segment Routing

hi,
excellent question as usual... for sr-mpls we only support 1 label insertion
in the dataplanes at the moment...
br,
cs

On 9/21/22 01:31, Cristina Klippel Dominicini wrote:
> Hi Csaba and Frederic,
>
> We are working on the demo for the SuperComputing Conference, which
> compares PolKA with Segment Routing.
>
> For this comparison, it would be important to define an explicit path
> for both protocols, where all the nodes of the path are explicitly defined,
> independently of the shortest path between two nodes, as explained here:
>
> https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r
> 6-4/segment-routing/configuration/guide/b-segment-routing-cg-asr9000-6
> 4x/b-segment-routing-cg-asr9000-64x_chapter_0111.html
>
> Using PolKA, the syntax is simple:
> RIO0001#configure terminal
> RIO0001(cfg)#interface tunnel1
> *RIO0001(cfg-if)#tunnel domain-name 20.20.20.1 20.20.20.4 20.20.20.3
> 20.20.20.2* RIO0001(cfg-if)#end
>
> However, for Segment Routing we have not been able to define the
> explicit path. Could you please confirm if this is supported in the
> current implementation of freeRtr? We searched the test cases here,
> but we could not identify one that uses explicit paths:
> http://docs.freertr.org/guides/reference/
> <http://docs.freertr.org/guides/reference/>
>
> Best regards,
> Cristina
>
>
>
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