Hi, On Tue, Mar 20, 2012 at 4:51 PM, Felipe Zanchet Grazziotin < felipe@starbyte.net> wrote:

Hello,

can anyone confirm why IF-MIB::ifHighSpeed should return 0 for aggregates of 10 Gbit/s ports?

just to confirm what all those helpful souls told me off-list: most vendors (Cisco, Juniper, NetScalar) returns ifHighSpeed as sum of current link aggregate members speed. Something like: IF-MIB::ifHighSpeed.369098752 = Gauge32: 20000 or maybe, depends on your equipment configuration or model IF-MIB::ifHighSpeed.14 = Gauge32: 20000

My google-foo led me to several topics on "use ifHighSpeed to 10 Gbit/s", but none is clear on 10 Gbit/s aggregated.

So far I could only find references pointing to IEEE Std 802.1AX-2008 clause 6.3.1.1.16 (aAggDataRate), mapping to IF-MIB::ifSpeed, which is locked in 4,294,967,295 (Gauge32). In this same standard it is very specific about ifHighSpeed: "Set to zero.".

Or, more directly: how can one find current speed of a 10Gb/s+ link aggregate port?

Looks like it's a vendor thing, so blame them if it's different for you. :)

Please, answer me off-list and I promise to summarize an answer... :)

Wish to thank you all once more, this data helped me a lot! Kindly, Felipe