NPM stopped to display "Multicast" traffic

NPM stopped to display "Multicast" traffic (evidently ifInNUcastPkts and ifOutNUcastPkts variables) for newer Cisco switches , see attachment.

The reason is probably that Cisco has replaced  common ..NU.. variables by more specific Multicast and Broadcast variables in latter IOS version, see next e-mail found on Cisco forum:

>>>>
Posted by: jclarke - Customer Support Engineer, CISCO SYSTEMS, CCIE - Nov 6, 2007, 11:16am PST

Deprecated does not mean obsolete. A deprecated object should still work, but you are encouraged to use its replacement (if any). In this case, ifInNUcastPkts is replaced with ifInMulticastPkts and ifInBroadcastPkts from the IF-MIB. This object were deprecated by the IETF most likely because it did not distinguish between broadcast and multicast frames.
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Monitoring of non unicast traffic is wery useful. May I request an adjusting of SolarWind NPM to this change please?

There are two available fours of variables for this purpose (the first is Counter32 type, latter Counter64 type):

ifInMulticastPkts       1.3.6.1.2.1.31.1.1.1.2.Index
ifInBroadsastPkts       1.3.6.1.2.1.31.1.1.1.3.Index
ifOutMulticastPkts      1.3.6.1.2.1.31.1.1.1.4.Index
ifOutBroadcastPkts      1.3.6.1.2.1.31.1.1.1.5.Index

ifHCInMulticastPkts     1.3.6.1.2.1.31.1.1.1.8.Index
ifHCInBroatcastPkts     1.3.6.1.2.1.31.1.1.1.9.Index
ifHCOutMulticastPkts    1.3.6.1.2.1.31.1.1.1.12.Index
ifHCOutBroadcastPkts    1.3.6.1.2.1.31.1.1.1.13.Index

Regards,
Tomas
 

Thanks for your prompt reply.

I noticed this effect on MRTG monitor at first.

It evidently coincide with upgrade from 12.2(25)SE to 12.2(40)SE IOS version. NPM displays the same. Interesting that C2960G-48TC-L continues reporting after IOS upgrade but C2960G-24TC-L do not (3 switches on all ports). One C3560G-24TS-S stopped reporting non-unicasts as well.

I selected "Allow 64 ..", but no change so far.

Regards,
Tomas

The selection of 64 bit counters is partly succesful - NPM started reporting. But values reported are false. It seems to be only multicasts reported and broadcasts omitted.

We  have MRTG adjusted to plot the sum of multicasts and broadcasts. Display is the same as before the IOS upgrade,  see

http://pc068.fzu.cz/mrtg/bcast/ss-u4p1_10127.html

It is what I suspected. Multicasts are much less interesting than broadcasts (storms!) Were it possible display  broadcast in place of multicast values? (Or better sum of both?)

Regards,

Tomas