Tony,

> No, we’re trying to protect against unpredicted load. That doesn’t mean
> that TE was very badly provisioned, just that it wasn’t perfect. Whatever
> the root cause, congestion does happen and we want to try to address it.


Since very early days of RSVP-TE one fundamental recommendation we were
giving operators was to always do policing/rate-limiting what goes into a
TE-LSP on ingress. There is nothing more or less perfect about it - it is
either in place or not. Such policing/rate-limiting would also auto adjust
when auto-bandwidth has been enabled. So if the unexpected traffic entered
the network it was either dropped or shaped on ingress.

You are talking about unpredicted load suddenly appearing in the middle of
the network and NOT as a result of already single network failure. I guess
you are still confirming that you will not protect with TTE traffic which
is already protected with vanilla FRR due to node/link failure.

Regards,
R.
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