Re: [sFlow] Encoding unknown values in the extended_switch structure

2009-05-23 Thread Paolo Lucente
Hi Peter, Not really an objection - rather a proposal for your consideration. What about bitmapping fields contained in standard elements within, say, the upper two bytes of the element tag? typedef struct _SFLFlow_sample_element { struct _SFLFlow_sample_element *nxt; u_int32_t tag; /* S

Re: [sFlow] Encoding unknown values in the extended_switchstructure

2009-05-23 Thread Paolo Lucente
a general unknown value mechanism would be an attractive > extension. > > As new structures are defined for sFlow version 5, adopting a convention in > which the first member of the structure is a bit array indicating any > unknown elements in the structure would be something that aut

[sFlow] Integrating BGP and sFlow at the collector

2009-08-06 Thread Paolo Lucente
Hi, I'm glad to announce the pmacct project ( http://www.pmacct.net/ ) made a new successful effort in introducing innovation within a sFlow collector by tying up BGP peering capabilities and per-peer BGP RIBs with sFlow. While some Extended Gateway fields remain currently not supported (even tho

Re: [sFlow] one sample question

2009-10-29 Thread Paolo Lucente
Hi, Some of the so-called additional structures are actually supported by pmacct, ie. source or destination AS (extended gateway) or VLAN tag (extended switch). L7-classification using the sampled header is also feasible (as the bulk of the work is already available for the promiscuous mode daemo