Calculation type value ranges from 0 to 127 both inclusive
from the IGP Algorithm Types registry defined under
Interior Gateway Protocol (IGP)
Parameters IANA registries.
If the required calculation type is Shortest Path First,
the value 0 SHOULD appear in this field.
flex-algo-id
uint8
Flex-Algorithm identifies which algorithm should be used during
path computation
flex-algo-metric-type
enumeration
Type of metric to be used during a Flex Algo path
computation