Hi Nat, Please read https://tools.ietf.org/html/rfc8491#section-5 Currently defined MSD types are: 1: BMI 2: ERLD
Specifically to BMI: Base MPLS Imposition MSD (BMI-MSD) signals the total number of MPLS labels that can be imposed, including all service/transport/special labels. The answer to your question is 6 Cheers, Jeff On Dec 13, 2019, 3:42 AM -0800, Nat Kao <[email protected]>, wrote: > Hello, SPRING WG. > > How do we deal with an SR-TE policy headend with different MSDs for different > types of traffic? > For example, a headend H can impose: > 6 transport labels for plain IPv4 packets; > 5 transport labels + 1 IPv6 ExpNull label for plain IPv6 packets; > 3 transport labels + 3 VPN labels for VPN packets. > > a) For a plain IPv4 route R4 and a VPN route Rv both steered into the SR-TE > policy P1 with SID list <S1, S2, S3, S4, S5>, what will H perform in this > situation? > b) What is the MSD of H? 6, 5 or 3? > > Thanks, > Nat. > _______________________________________________ > spring mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/spring
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