+1 I’d really like to see justification for anything larger than 8 bits.
Regards, Jeff > On Feb 14, 2018, at 18:30, Acee Lindem (acee) <[email protected]> wrote: > > I agree. As a point of reference, we've only have defined two IGP algorithms > so far and the segment routing draft dates back about 4 years. > > https://www.iana.org/assignments/igp-parameters/igp-parameters.xhtml#igp-algorithm-types > > Even with more artistic freedom afforded to multicast, I still believe 256 > standard algorithms are enough. > > Thanks, > Acee > > On 2/14/18, 9:15 PM, "BIER on behalf of Dolganow, Andrew (Nokia - > SG/Singapore)" <[email protected] on behalf of [email protected]> > wrote: > > Guys, > > I would think 8 bits are sufficient. Others (like SegRtg mentioned below > also use 8). 8 bits gives us tons of room to grow - especially since we have > only a single value defined currently (SFP 0). If we have clear use cases > that show us running out of 8 bits or getting close to that we can/should > discuss and evaluate extensions in light of that but increasing the space > "just in case" is not a prudent way to go. > > Andrew > > -----Original Message----- > From: BIER <[email protected]> on behalf of Xiejingrong > <[email protected]> > Date: Wednesday, February 14, 2018 at 5:06 PM > To: Arkadiy Gulko <[email protected]>, "[email protected]" > <[email protected]>, "[email protected]" <[email protected]> > Subject: Re: [Bier] WGLC : draft-ietf-bier-isis-extensions-07.txt > > Hi Arkadiy, > > I checked the latest <draft-ietf-ospf-segment-routing-extensions-24> > and <draft-ietf-isis-segment-routing-extensions-15> for reference and > comparing, and they both use a 8 bits Algorithm. > One of the description: "Algorithm: Single octet identifying the > algorithm." > > Interesting to use more than 8 bits for BIER's future flexibility :-) > > Regards, > XieJingrong > > > -----Original Message----- > From: BIER [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Wednesday, February 14, 2018 8:42 AM > To: [email protected]; [email protected] > Subject: [Bier] WGLC : draft-ietf-bier-isis-extensions-07.txt > > Hello Working Group, > After initial discussions between multiple participants of the working > group, we consolidated that BIER's future flexibility would be well served if > we extend the IGP signaling BAR field to 16 bits. We are currently reviewing > various use-cases that can greatly benefit from this enhancement. > I would appreciate if the proposed change could be considered as part > of IETF Last Call review. > Thanks, > Arkadiy > > > -----Original Message----- > From: BIER [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Friday, February 09, 2018 5:11 PM > To: [email protected] > Cc: [email protected] > Subject: [Bier] I-D Action: draft-ietf-bier-isis-extensions-07.txt > > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Bit Indexed Explicit Replication WG > of the IETF. > > Title : BIER support via ISIS > Authors : Les Ginsberg > Tony Przygienda > Sam Aldrin > Jeffrey (Zhaohui) Zhang > Filename : draft-ietf-bier-isis-extensions-07.txt > Pages : 10 > Date : 2018-02-09 > > Abstract: > Specification of an ISIS extension to support BIER domains and sub- > domains. > > > > The IETF datatracker status page for this draft is: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_draft-2Dietf-2Dbier-2Disis-2Dextensions_&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=3qPmQav_QUBjHi7KygPVk9bIhVZ7TL2Z3xfHOo_Cjwc&e= > > > There are also htmlized versions available at: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dietf-2Dbier-2Disis-2Dextensions-2D07&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=_nTFvlAW24snrkMm3aQ2uWLFsLCajYeW4HO3DdEiwvs&e= > > https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_html_draft-2Dietf-2Dbier-2Disis-2Dextensions-2D07&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=zHWCGuyM-GSX-slbFtCv4fs9ml5gPQBeXohosuyhpx4&e= > > > A diff from the previous version is available at: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_rfcdiff-3Furl2-3Ddraft-2Dietf-2Dbier-2Disis-2Dextensions-2D07&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=pDVWzZrYzGia4WKiA_cSF0P5isUmMeojSvHJIGgdOTk&e= > > > > Please note that it may take a couple of minutes from the time of > submission until the htmlized version and diff are available at > tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > > https://urldefense.proofpoint.com/v2/url?u=ftp-3A__ftp.ietf.org_internet-2Ddrafts_&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=wqMqmybm38ZiX4CuzJaNJPMea1Mf-pSgD-vdgAHk850&e= > > > _______________________________________________ > BIER mailing list > [email protected] > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_bier&d=DwICAg&c=4ZIZThykDLcoWk-GVjSLmy8-1Cr1I4FWIvbLFebwKgY&r=JA6g2ZDvIPLQHZqHQByKQq-jvOcxu4cQskARppQFqZc&m=TOz3rr3No8ReKzE_27M4FMDvmv6fa9xveuyL5HyTvYs&s=kxUz28mTxGjbNsEQMGi8SMZ93LSiMt_bMFzqkWJJZnU&e= > > > _______________________________________________ > BIER mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/bier > > _______________________________________________ > BIER mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/bier > > > _______________________________________________ > BIER mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/bier > > > _______________________________________________ > BIER mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/bier _______________________________________________ Isis-wg mailing list [email protected] https://www.ietf.org/mailman/listinfo/isis-wg
