Their numeric codes may be shoved aside by IETF revisions if they are
chosen badly or unluckily.
They may become unsupported in future releases of ComOS, or replaced by
IETF-approved extensions.
Otherwise, I think extensions are a great testing ground for new fodder for
standards, and can often add value to the ISP with the clue to take advantage.
Go ahead, deny it!
-- Bob Forsman thoth@gainesville.fl.us http://www.gainesville.fl.us/~thoth/