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subscriber lines in L2 state). For DSL line cards that have additional functions (e.g., MELT, vectoring,
test access and channel bonding, etc.), in addition to the bare DSL functionality, the informative
value for such boards refers to a normal DSL mode of operation with any additional functions being
disabled.
Rec. ITU‐T L.1340 (02/2014) 5 Nports is the maximum number of ports served by the broadband
network equipment under test.

Table 3 – Informative values for DSLAM/MSAN

ITU‐T's Technical Reports and Specifications 273