nanog mailing list archives
Re: IPv6 traffic percentages?
From: Randy Bush <randy () psg com>
Date: Thu, 21 Jan 2016 23:44:34 +0900
You can configure pmacct to specify on which properties of the received flow data it should aggregate its output data, one could configure pmacct to store data using the following primitives: ($timeperiod, $entrypoint_router_id, $bgp_nexthop, $packet_count) Where $timeperiod is something like 5 minute ranges, and the post processing software calculates the distance between the entrypoint router and where the flow would leave the network ($bgp_nexthop). See 'aggregate' on http://wiki.pmacct.net/OfficialConfigKeys In short: you configure pmacct to throw away everything you don't need (maybe after some light pre-processing), and hope that what remains is small enough to fit in your cluster and at the same time offers enough insight to answer the question you set out to resolve.
it's late here, so i am a bit slower than usual. but could you explain in detail how this tests the hypothesis? even of all your traffic entered on a bgp hop and exited on a bgp hop, and all bgp entries set next_hop (which i think you do), you would be ignoring the 'distance' the packet traveled from source to get to your entry and traveled from your exit to get to the final destination. randy
Current thread:
- Re: IPv6 traffic percentages?, (continued)
- Re: IPv6 traffic percentages? Job Snijders (Jan 20)
- Re: IPv6 traffic percentages? Jared Mauch (Jan 20)
- Re: IPv6 traffic percentages? Owen DeLong (Jan 20)
- Re: IPv6 traffic percentages? Randy Bush (Jan 20)
- Re: IPv6 traffic percentages? Job Snijders (Jan 20)
- Re: IPv6 traffic percentages? Randy Bush (Jan 20)
- Message not available
- Re: IPv6 traffic percentages? Randy Bush (Jan 20)
- Re: IPv6 traffic percentages? Job Snijders (Jan 21)
- Re: IPv6 traffic percentages? Randy Bush (Jan 21)
- Re: IPv6 traffic percentages? Job Snijders (Jan 21)
- Re: IPv6 traffic percentages? Randy Bush (Jan 21)
- Re: IPv6 traffic percentages? Job Snijders (Jan 21)
- Re: IPv6 traffic percentages? Randy Bush (Jan 21)
- Re: IPv6 traffic percentages? Owen DeLong (Jan 20)
- Re: IPv6 traffic percentages? Owen DeLong (Jan 25)