The MPLS Topology Server also discovers non-targeted LDP adjacencies and RSVP sessions. GUID-7D190E87-E788-4D9D-87D3-163AC6978358.html#GUID-7D190E87-E788-4D9D-87D3-163AC6978358___MPLS_DISCO_OVERVIEW_87197 presents examples.
A non-targeted LDP adjacency provides a bidirectional signaling path through which two directly connected peering devices exchange MPLS label information for the purpose of constructing, maintaining, or deleting LDP LSPs.
An RSVP session provides a bidirectional signaling path through which two peering devices exchange MPLS label information for the purpose of constructing, maintaining, or deleting TE LSPs or subLSPs.
