02.10.2020 15:00, Eugene Grosbein wrote: >>>> You have dual supervisor on this box. >>>> Can you do a failover to the secondary and see if that stops the input >>>> errors? >>>> This will localise the problem >>> >>> Do I need to disable NSF (non-stop forwarding) to localise the problem? >>> I guess both RSP should exchange data routinely when NSF is enabled. >> >> Or I could just eject stand-by RSP out of the chassis. > > So I've changed redundancy mode to to RPR (Route Processor Redundancy, was > SSO) then stand-by RSP was ejected physically. > I expected that errors would stop or would not change at all but neither > happened. > > Instead, error rate decreased significantly but not ceased (12:25 was the > moment): > http://www.grosbein.net/cisco/eobc0_0-day.png > > Also something strange happened with these stats that I consider as "fabric > utilisation": > > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.1.0 = INTEGER: 25 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.1.1 = INTEGER: 37 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.2.0 = INTEGER: 6 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.2.1 = INTEGER: 5 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.3.0 = INTEGER: 8 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.3.1 = INTEGER: 1 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.4.0 = INTEGER: 4 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.4.1 = INTEGER: 4 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.5.0 = INTEGER: 0 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsInUtil.6.0 = INTEGER: 0 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.1.0 = INTEGER: 7 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.1.1 = INTEGER: 12 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.2.0 = INTEGER: 13 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.2.1 = INTEGER: 18 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.3.0 = INTEGER: 13 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.3.1 = INTEGER: 13 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.4.0 = INTEGER: 7 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.4.1 = INTEGER: 11 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.5.0 = INTEGER: 0 > CISCO-CAT6K-CROSSBAR-MIB::cc6kxbarStatisticsOutUtil.6.0 = INTEGER: 0 > > Here are corresponding graphs. Modules 5 and 6 (RSPs) almost always show > zeroes, > graphs for modules 1 and 4 do not show any unusual but graph for modules 2 > and 3 do: > > http://www.grosbein.net/cisco/f10-day.png > http://www.grosbein.net/cisco/f11-day.png > http://www.grosbein.net/cisco/f20-day.png > http://www.grosbein.net/cisco/f21-day.png > http://www.grosbein.net/cisco/f30-day.png > http://www.grosbein.net/cisco/f31-day.png > http://www.grosbein.net/cisco/f40-day.png > http://www.grosbein.net/cisco/f41-day.png > > I get RSP and configuration back and graphs restore to previous shapes.
Also I should note this router has multiple 2 or 4-port Port-channels with 1Gbps ports. Some Port-channels have members at single line card, some have members spread over multiple line cards. Maybe this is relevant. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
