[c-nsp] Core to access links. Use single etherchannel?

[marco at linuxgoeroe.dhs.org]

> If I remember correctly, whenever an Etherchannel changes from two or
> more members to one member (or vice versa), an STP reconvergence is
> triggered.  Assuming that to be correct, you'll still have an STP blip
> during a link/card failure.  :(

No, an Etherchannel is a single link as far as STP is concerned, and
members coming or going will happen 'below' the STP level.

             Marco.