Hi Changwang, Authors, Went thru the latest revision 16
1. Addition of a RIB-view scope table is the newer version is helpful. We seem to have picked only Adj-RIB-In, Adj-RIB-Out and LRIB only, but instead can we please include all 5 variants of RIB-views (In-Pre/Post, LRIB, Out-pre/post) and clarify in table and stats type of which of the RIB-views do the stats apply to. 2. Looking at the stats defined as applicable across Adj-RIB-In and LRIB, if the answer to 'point C' below is 'Adj-RIB-In' only, then it seems to me like, we don't have a need for muxing of stats in this draft. | 24 | Y | N | Y | | 25 | Y | N | Y | | 26 | Y | N | Y | | 27 | Y | N | Y | | 28 | Y | N | Y | | 31 | Y | N | Y | | 32 | Y | N | Y | A. These stats would only be applicable after bgp best-path is run only in the LRIB view, but it is marked as multiplexed across In-pre and lrib - Type = 24: (64-bit Gauge) Current Number of routes in per-AFI/SAFI selected as primary route. - Type = 25: (64-bit Gauge) Current Number of routes in per-AFI/SAFI selected as a backup route. B. Following stats are Adj-RIB-In only (not LRIB) // In-Pre would have routes suppressed, not showing up in In-Post - Type = 26: (64-bit Gauge) Current Number of routes in per-AFI/SAFI suppressed by configured route damping policy. // In-post, GR event marks them stale (do we want In-pre also here ?) - Type = 27: (64-bit Gauge) Current Number of routes in per-AFI/SAFI marked as stale by Graceful Restart (GR) events. - Type = 28: (64-bit Gauge) Current Number of routes in per-AFI/SAFI marked as stale by Long-Lived Graceful Restart (LLGR). C. Stats 29/30 are defined as Adj-RIB-In only, but Stats 31/32 their license counterparts are defined to be across LRIB and Adj-RIB-In. Do you see the license thresholds being defined for both Adj-RIB-In/LRIB ? Dhananjay has asked for more clarity on license thresholds in the other thread, u could clarify these points together - Type = 31: (64-bit Gauge) Current Number of routes left before exceeding a license-customized route threshold. - Type = 32: (64-bit Gauge) Current Number of routes in per-AFI/SAFI left before exceeding a license-customized route threshold. 3. Given the recent discussion on the WG mailer about routes/paths, multi-path scenario, primary/backup + the latest version updates clarifies a few things to avoid different interpretations, but also makes some areas more confusing to me, mentioning a few below - it may be helpful to add a section on multi-path consideration and provide more clarity on the definitions around this. We can polish this a bit more in the draft across stats types (Eg: For stats 24, for ECMP case, we can have multiple paths eligible to be downloaded to system RIB - say if this count is 4 for a given prefix, do we expect this count to be 1 or 4) - The term route, path seem to be used interchangeably, sometimes route refers to path as well - for example in Type 26, Type 27, Type 28, we start the defn with routes but talk about paths later. The definition of Primary and Backup route also uses route/path interchangeably whilst stats type refers to routes. - Add-path as in RFC7911 is towards BGP peers, this would be independent of multi-path towards RIB. We could have one of these enabled without the other (Eg: best-path in HW + add-path towards peers) Thanks /snnp (Prasad) -----Original Message----- From: [email protected] <[email protected]> Sent: 25 November 2025 08:52 To: [email protected] Cc: [email protected] Subject: [GROW] I-D Action: draft-ietf-grow-bmp-bgp-rib-stats-16.txt Internet-Draft draft-ietf-grow-bmp-bgp-rib-stats-16.txt is now available. It is a work item of the Global Routing Operations (GROW) WG of the IETF. Title: Advanced BGP Monitoring Protocol (BMP) Statistics Types Authors: Mukul Srivastava Yisong Liu Changwang Lin Jinming Li Name: draft-ietf-grow-bmp-bgp-rib-stats-16.txt Pages: 18 Dates: 2025-11-24 Abstract: RFC 7854 defines different BGP Monitoring Protocol (BMP) statistics message types to observe events that occur on a monitored router. This document defines new statistics type to monitor BMP Adj-RIB-In and Adj-RIB-Out Routing Information Bases (RIBs). The IETF datatracker status page for this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-grow-bmp-bgp-rib-stats/ There is also an HTMLized version available at: https://datatracker.ietf.org/doc/html/draft-ietf-grow-bmp-bgp-rib-stats-16 A diff from the previous version is available at: https://author-tools.ietf.org/iddiff?url2=draft-ietf-grow-bmp-bgp-rib-stats-16 Internet-Drafts are also available by rsync at: rsync.ietf.org::internet-drafts _______________________________________________ GROW mailing list -- [email protected] To unsubscribe send an email to [email protected] _______________________________________________ GROW mailing list -- [email protected] To unsubscribe send an email to [email protected]
