Re: [Idr] BGP MIB v2 input
Bill Fenner <fenner@research.att.com> Mon, 26 March 2007 04:50 UTC
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From: Bill Fenner <fenner@research.att.com>
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Subject: Re: [Idr] BGP MIB v2 input
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Date: Mon, 26 Mar 2007 06:50:37 +0100
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It may be worth breaking this down into areas of limitation of the current MIB: 1. v6 peer support 2. v6 and other NLRI support 3. 4-byte AS support 4. extra counters desired (Others?) #1 can be taken care of with a rev of the peer table using the InetAddressType/InetAddress TCs. For #2, I have a somewhat radical proposal, which is to eliminate the reporting of the BGP table contents via SNMP. The radical replacement would be a "lookup request" which you do by writing an AFI, SAFI, NLRI to a lookup table, specifying whether you want longest match or all matches, and you read the results from a lookup results table. (a few reasons for this change: a) It's not very efficient to have an SNMP table with 200k+ rows; b) It's hard to represent, e.g., VPN routes; and c) You probably want to know "what routes do you know for this destination", which is not easy to answer even with the existing indexing, since "destination" is probably a /32 and the prefix in the table is probably not) #3 is straightforward, especially since between #1 and #2 we're probably changing most of the places you see an AS number anyway. #4 is straightforward too if we know exactly which counters are useful. Although there are problems that the original BGP MIBv2 effort tried to solve that aren't on my list, I'd propose ignoring them for now in order to make *some* progress. Bill _______________________________________________ Idr mailing list Idr@ietf.org https://www1.ietf.org/mailman/listinfo/idr
- [Idr] BGP MIB v2 input Susan Hares
- Re: [Idr] BGP MIB v2 input Simon Leinen
- Re: [Idr] BGP MIB v2 input Henk Uijterwaal
- Re: [Idr] BGP MIB v2 input Bill Fenner
- Re: [Idr] BGP MIB v2 input Pekka Savola
- Re: [Idr] BGP MIB v2 input Jeffrey Haas
- Re: [Idr] BGP MIB v2 input Curtis Villamizar
- Re: [Idr] BGP MIB v2 input Jeffrey Haas
- Re: [Idr] BGP MIB v2 input Curtis Villamizar
- Re: [Idr] BGP MIB v2 input Jeffrey Haas
- Re: [Idr] BGP MIB v2 input Pekka Savola
- Re: [Idr] BGP MIB v2 input Bill Fenner
- Re: [Idr] BGP MIB v2 input Jeffrey Haas
- Re: [Idr] BGP MIB v2 input Curtis Villamizar
- Re: [Idr] BGP MIB v2 input Curtis Villamizar
- Re: [Idr] BGP MIB v2 input Pekka Savola