ifHighSpeed for 10 Gb/s port-channels

Thu Mar 29 14:36:31 UTC 2012

Hi,

On Tue, Mar 20, 2012 at 4:51 PM, Felipe Zanchet Grazziotin <
felipe at 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