h3cMplsOamIgrRevType 1.3.6.1.4.1.2011.10.2.79.2.1.1.5

When an LSP is found to be in defect, the sink LSR of the LSP should send BDI to inform the source LSR of the LSP, the BDI is transferred through the reverse LSP. The type of reverse LSP can be private or shared. If private, then the reverse LSP can be used only by the oam ingress; If shared, the reverse LSP which is shared between many forward LSPs, whose source LSRs are the same and sink LSRs are the same. 1: private; 2: share.