Hi Peter, At the edge of the SR domain, how does the ingress decide which algorithm’s prefix SID to use? I guess it is a local matter. However, I would call this out in the document. Thanks, Acee
On 11/20/17, 5:04 PM, "Peter Psenak (ppsenak)" <[email protected]> wrote: >Hi Acee, > >On 20/11/17 19:19 , Acee Lindem (acee) wrote: >> Hi Shraddha, Peter, et al, >> >> The comment on the draft I had was that the conflict case where two ISIS >> routers advertise the same multi-homed prefix with a different algorithm >> needs to be covered. I wouldn’t try and optimize for this and would just >> do whatever is simplest but avoids loops (e.g., log the situation and >> prefer the path computed with the lowest numbered algorithm). > >prefix can have SIDs for many algorithms. Prefix-SID for one algorithm >is independent and orthogonal to prefix-SID for any other algorithm. > >There is no need for all sources of the multi-homed prefix to include >the same set of Algo-SIDs. Each source can advertise an independent set. > >The case is similar to Alg-0 SID, where prefix is advertised from two >different sources and one source advertise the Alg-0 SID and other does >not. > >thanks, >Peter > >> >> Thanks, >> Acee > _______________________________________________ Isis-wg mailing list [email protected] https://www.ietf.org/mailman/listinfo/isis-wg
