A row in this table represents one cross-connect entry. The following objects index it:

- cross-connect index mplsXCIndex that uniquely identifies a group of cross-connect entries - interface index of the in-segment, mplsInSegmentIfIndex - incoming label(s), mplsInSegmentLabel - out-segment index, mplsOutSegmentIndex

Originating LSPs: These are represented by using the special combination of values mplsInSegmentIfIndex=0 and mplsInSegmentLabel=0 as indexes. In this case the mplsOutSegmentIndex MUST be non-zero.

Terminating LSPs: These are represented by using the special value mplsOutSegmentIndex=0 as index.

Special labels: Entries indexed by reserved MPLS label values 0 through 15 imply terminating LSPs and MUST have mplsOutSegmentIfIndex = 0. Note that situations where LSPs are terminated with incoming label equal to 0, should have mplsInSegmentIfIndex = 0 as well, but can be distinguished from originating LSPs because the mplsOutSegmentIfIndex = 0. The mplsOutSegmentIfIndex MUST only be set to 0 in cases of terminating LSPs.

An entry can be created by a network administrator or by an SNMP agent as instructed by an MPLS signaling protocol.