Allow operators to enforce the presence of certain capabilities on sessions.

For simple capabilities this just adds enforce to the yes/no option of the
announce statement. For multi-protocol capabilities and add-path there is
an extra keyword. On top of this for add-path the enforcement requires the
neighbor to send a matching capability, e.g
'announce add-path recv enforce' requires the other side to send any
'announce add-path send XYZ' capability.

This is mainly to enforce as-4byte and extra multi-protocol capabilities.

OK denis@ tb@

0 files changed, 0 insertions, 0 deletions