Hi Mrinmoy, On Tue, Feb 22, 2022 at 4:52 PM Mrinmoy Das <[email protected]> wrote:
> Hello Team, > > I found below SR-ERO validation in RFC 8664, 5.2.1 > <https://datatracker.ietf.org/doc/html/rfc8664#section-5.2.1>. SR-ERO > Validation > > The SR-ERO subobjects can be classified according to whether they > contain a SID representing an MPLS label value or an index value, or > no SID. If a PCC detects that the SR-ERO subobjects are a mixture of > more than one of these types, then it MUST send a PCErr message with > Error-Type = 10 ("Reception of an invalid object") and Error-value = > 20 ("Inconsistent SIDs in SR-ERO/SR-RRO subobjects"). > > > As per my understanding of the above text, there could be three types of > SIDs: > > 1. *SID index: *S-bit = 0, M = 0,C = 0 > 2. *SID as MPLS label:* S-bit = 0, M = 1, C = 0/1 > 3. *Null:* S-bit = 1 > > Now, if a LSP contains 3 SR-ERO subobjects then all those three should > have the same SID type, e.g. all may be type 1, or type 2 or type 3 and > there shouldn't be any combination of these 3 types. > > Is this understanding correct? Please let me know. > > Yes! Your understanding is correct. Thanks! Dhruv > Thanks, > Mrinmoy > _______________________________________________ > Pce mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/pce >
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