Until now, we were presenting a separate sFlow data-source (sampler) for
each ifIndex-interface. This caused problems with samples that did not
easily map to an ifIndex being aliased together and breaking the sFlow
containment rules. This patch changes the model to present a single sFlow
data-source for each bridge. Now we can still make all reasonable effort
to map packet samples to ingress/egress ifIndex numbers, knowing that the
fallback to "unknown" does not break the sFlow model. Note that
interface-counter-polling is still handled the same way as before, with
sFlow counter-polling data only being exported for ifIndex-interfaces.
Signed-off-by: Neil Mckee <neil.mckee@inmon.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
The sFlow License was not on the list for the Fedora Project, but the
Sun Industry Standards Source License 1.1 was (and it has the right
properties). So this patch includes it as a licensing option in the
relevant places (COPYING and the lib/sflow* sources). Let me know
if this looks OK or not.
Signed-off-by: Neil McKee <neil.mckee@inmon.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
The C source and header files added in this commit is covered under the
InMon sFlow license at http://www.inmon.com/technology/sflowlicense.txt
The library requires -Wno-unused to compile without warnings, so this
commit adds that for building the sFlow code only. Automake can only
change compiler flags on a per-library or per-program basis, so sFlow
is built as a separate library.
The library will be used in upcoming commits.
