75th IETF – Stockholm, Sweden, July 2009
Page - 4
Categorization
of Impairment Parameters
•Apply to the network
element (NE) as a whole
–Get one parameter of each particular type in this category per NE
•Vary on a per port
basis
–Get one parameter of each particular type in this category per NE port. Not all parameters different so smart encoding can save “space”.
•Vary based on port
to port pairs
–Get one parameter of each particular type in this category per (ingress port, egress port) pair. Not all parameters different so smart encoding can save “space”.
These categories are inferred from ITU-T G.680 and are useful for control plane purposes
and don’t change G.680.