[j-nsp] RSVP path constraints for transit LSPs

[Rob Foehl]

On Sat, 6 Feb 2021, Robert Huey wrote:

> Have you looked into IGP Overload?   I think it will do the trick without ever getting into TE constraints.

In this case, it's OSPF, so overload is just max metric.  The path metric 
already exceeds any other through the network under ordinary conditions, 
which is why it's only a problem on occasion, and with bypass LSPs in 
particular.

IGP metric isn't enough when "best path" is the same answer as "only 
available path", and it looks like switch-away-lsps goes too far in the 
opposite direction.

-Rob